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For the Introduction / Rules / Schedule / Prizes / Position / Tutorial / etc. Please click here. 

For the News and the Rankings, Please click here. 

A few final words...

Well, first I would like to thank all the participants for their kindness in correspondance, and all the hours, hard work, and combativity that they have put in this tournament. Such tournaments demand a lot of energy, and I wouldn't be surprised if some lost a few pounds :-)

There was a high level of creativity exhibited, like in previous competitions. Some matrices and ideas are true gems, to say the least, and I was in awe before them. That said the combination of all the requirements was probably somewhat harder to work with than in the previous tournament. For example in the C and D categories, it was relatively static for a long time, until first Cornel broke a barrier, and then Arno came up with an unbelievable "magical" idea.

One thing that surprised me a little bit was that there were very few (and only in the low dimensions) matrices based on promotions, while in (all?!) previous help-stalemate tournaments, these proved quite strong. Probably the Lortap condition is responsible for this, as it may be harder to coordinate pieces.

This tournament was dominated - to say the least - by Arno. Many congratulations to him! Quite an incredible feast, he won all the categories, and with style! :-) And a surprising fact is that he is the only one to have actually passed all the requirements for the initial challenge...

I will let you now have a look at the matrices... there will certainly be several errors, please let me know if you find any. The total number of emails I received for this competition has been quite less than the previous one, "just" 282... :-)

Several of the low dimensions matrices could well be considered as good puzzles! Take for example the D2/3/9... the question would not include the number of moves for that one, just the total number of pieces.

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Prizes and compositions

Categories

1st prize

A1

Arno Tüngler

B1

Arno Tüngler

C1

Arno Tüngler

D1

Arno Tüngler

Number of records of A2 and B2

Arno Tüngler

Number of records of C2 and D2

Arno Tüngler

First to reach 50 in A1, 40 in B1, 30 in C1 and 20 in D1

Arno Tüngler


Category A1 (best solution that can include promoted pieces in the initial position, minimum 40 moves)
 

Places

Competitors

1st

Arno Tüngler
2NRB2B/7p/1P3K1N/B6N/2B5/2P5/1k2R3/B1Q3BB
   ser-h=72                                          (16+2)   

1.Kb2*c1 2.Kc1-b1 3.Kb1*a1 4.Ka1-b2 5.Kb2-a3 6.Ka3-a4 7.Ka4*a5 8.Ka5-a4 9.Ka4-a3 10.Ka3-b2 11.Kb2*c3 12.Kc3*c4 13.Kc4-b5 14.Kb5-a6 15.Ka6-a7 16.Ka7-b8 17.Kb8-c7 18.Kc7*d8 19.Kd8*c8 20.Kc8-b8 21.Kb8-a7 22.Ka7-a6 23.Ka6-b5 24.Kb5-c4 25.Kc4-d3 26.Kd3*e2 27.Ke2-f1 28.Kf1*g1 29.Kg1-f2 30.Kf2-e3 31.Ke3-d4 32.Kd4-c5 33.Kc5*b6 34.Kb6-c7 35.Kc7-d8 36.Kd8*e8 37.Ke8-d7 38.Kd7-d6 39.Kd6-c5 40.Kc5-d4 41.Kd4-e3 42.Ke3-f2 43.Kf2-g1 44.Kg1-h2 45.Kh2-h3 46.Kh3-h4 47.Kh4*h5 48.Kh5*h6 49.Kh6-h5 50.Kh5-g4 51.Kg4-f4 52.Kf4-e3 53.Ke3-d4 54.Kd4-c5 55.Kc5-d6 56.Kd6-d7 57.Kd7-e8 58.Ke8-f8 59.Kf8-g8 60.Kg8*h8 61.Kh8-g8 62.Kg8-f8 63.Kf8-e8 64.Ke8-d7 65.Kd7-d6 66.Kd6-c5 67.Kc5-d4 68.Kd4-e3 69.Ke3-f4 70.Kf4-g4 71.Kg4-h5 72.Kh5-h6 Bh1-f3 =

Beautiful and elegant matrix, with so many king tours embedded!!! Precise clockwork precision... Notice the "triple" check to start with :-) The bishop at h8 must be captured last, leading to a very long trip... the Lortap condition playing a vital role.

2nd

Ivan Skoba
NQ1BN2B/b1K1R3/1N1P3B/P1RR4/1RN5/8/2B1k3/8
    ser-h=63                                          (16+2)    

1.Ke2-f3 2.Kf3-g4 3.Kg4-h5 4.Kh5*h6 5.Kh6-g5 6.Kg5-f4 7.Kf4-e3 8.Ke3-d2 9.Kd2*c2 10.Kc2-d3 11.Kd3-e4 12.Ke4-f5 13.Kf5-g6 14.Kg6-h7 15.Kh7*h8 16.Kh8-g7 17.Kg7-f6 18.Kf6-e5 19.Ke5-d4 20.Kd4-c3 21.Kc3*b4 22.Kb4*a5 23.Ba7*b6 24.Ka5-a6 25.Bb6-a5 26.Ba5-b4 27.Ka6-a7 28.Ka7*a8 29.Bb4*c5 30.Bc5-a7 31.Ka8*b8 32.Kb8-a8 33.Ba7-c5 34.Ka8-a7 35.Ka7-a6 36.Ka6-b5 37.Kb5*c4 38.Bc5-d4 39.Kc4-d3 40.Kd3-e4 41.Bd4-e5 42.Ke4-f5 43.Kf5-e6 44.Ke6*e7 45.Ke7*e8 46.Be5-f6 47.Ke8*d8 48.Kd8-e7 49.Bf6-e5 50.Be5*d6 51.Ke7-e6 52.Bd6-e5 53.Ke6-f5 54.Kf5-e4 55.Be5-d4 56.Ke4-d3 57.Kd3-c4 58.Bd4-c5 59.Kc4-b5 60.Kb5-a6 61.Ka6-a7 62.Ka7-a8 63.Bc5-a7 Rd5-a5 =

This is pure Lortap madness... splendid! How do the competitors come up with such ideas, beyond my wildest dreams to even imagine this :-) I cannot even start to explain, one must go through it and admire the precision with which each move is executed, and why one move is possible while another one not...

3rd

Ion Murarasu
4RB1B/BB5p/5K1N/8/3P1N1B/8/3P4/kR1B4
   ser-h=62                                          (13+2)    

 1.Ka1-a2 2.Ka2-a3 3.Ka3-a4 4.Ka4-a5 5.Ka5-a6 6.Ka6*a7 7.Ka7-a6 8.Ka6-a5 9.Ka5-a4 10.Ka4-a3 11.Ka3-a2 12.Ka2*b1 13.Kb1-c1 14.Kc1*d1 15.Kd1*d2 16.Kd2-c3 17.Kc3*d4 18.Kd4-c5 19.Kc5-d6 20.Kd6-d7 21.Kd7*e8 22.Ke8*f8 23.Kf8-e8 24.Ke8-d7 25.Kd7-d6 26.Kd6-c5 27.Kc5-d4 28.Kd4-e3 29.Ke3*f4 30.Kf4-e3 31.Ke3-e2 32.Ke2-f1 33.Kf1-g1 34.Kg1-h2 35.Kh2-h3 36.Kh3*h4 37.Kh4-h5 38.Kh5*h6 39.Kh6-h5 40.Kh5-g4 41.Kg4-f4 42.Kf4-e3 43.Ke3-d4 44.Kd4-c5 45.Kc5-d6 46.Kd6-d7 47.Kd7-e8 48.Ke8-f8 49.Kf8-g8 50.Kg8*h8 51.Kh8-g8 52.Kg8-f8 53.Kf8-e8 54.Ke8-d7 55.Kd7-d6 56.Kd6-c5 57.Kc5-d4 58.Kd4-e3 59.Ke3-f4 60.Kf4-g4 61.Kg4-h5 62.Kh5-h6 Bb7-f3 =

Very nice matrix, with the same base matrix as the 1st. Notice the very elegant start, with the king having to go and capture the bishop at a7 before the rook at b1 can!

4th

Jean-Christian Galli
N6B/1p1B4/8/8/2K1R3/B3B3/1N5R/N1kQ3N
   ser-h=60                                          (12+2)   

1.Kf1*e1 2.Ke1-d1 3.Kd1-c1 4.Kc1-b1 5.Kb1*a1 6.Ka1-b1 7.Kb1-c1 8.Kc1-d1 9.Kd1-e1 10.Ke1-f1 11.Kf1-g1 12.Kg1*h2 13.Kh2*h1 14.Kh1-g2 15.Kg2-f3 16.Kf3*e4 17.Ke4-f3 18.Kf3-g3 19.Kg3-h4 20.Kh4-h5 21.Kh5-g6 22.Kg6-h7 23.Kh7*h8 24.Kh8-g7 25.Kg7-f6 26.Kf6-e5 27.Ke5-e4 28.Ke4-f3 29.Kf3-e2 30.Ke2-d1 31.Kd1-c2 32.Kc2-b1 33.Kb1-a2 34.Ka2*a3 35.Ka3*b2 36.Kb2-c2 37.Kc2-d1 38.Kd1-e2 39.Ke2-f3 40.Kf3-e4 41.Ke4-e5 42.Ke5-d6 43.Kd6*d7 44.Kd7-c8 45.Kc8-b8 46.Kb8*a8 47.Ka8-b8 48.Kb8-c7 49.Kc7-d6 50.Kd6-e5 51.Ke5-e4 52.Ke4-f3 53.Kf3-e2 54.Ke2-d1 55.Kd1-c2 56.Kc2-b2 57.Kb2-a3 58.Ka3-a4 59.Ka4-a5 60.Ka5-a6 Be3-b6 =

Very interesting matrix, using quite well the Lortap condition.

5th

Cornel Pacurar
B4R2/2BBR3/7R/2B3RN/5p2/1pB2K2/1P5k/1BBN3Q
    ser-h=55                                          (16+3)     

1.Kh2*h1   2.Kh1-h2   3.Kh2-h3   4.Kh3-h4   5.Kh4*g5   6.Kg5*h6   7.Kh6*h5   8.Kh5-h6   9.Kh6-g7  10.Kg7*f8  11.Kf8-e8  12.Ke8*d7  13.Kd7*c7  14.Kc7-b8  15.Kb8*a8  16.Ka8-b7  17.Kb7-c6  18.Kc6*c5  19.Kc5-d6  20.Kd6*e7  21.Ke7-f6  22.Kf6-g5  23.Kg5-h4  24.Kh4-h3  25.Kh3-h2  26.Kh2-g1  27.Kg1-f1  28.Kf1-e1  29.Ke1*d1  30.Kd1-e1  31.Ke1-f1  32.Kf1-g1  33.Kg1-h2  34.Kh2-h3  35.Kh3-h4  36.Kh4-g5  37.Kg5-f6  38.Kf6-e5  39.Ke5-d4  40.Kd4*c3  41.Kc3-d4  42.Kd4-e5  43.Ke5-f6  44.Kf6-g5  45.Kg5-h4  46.Kh4-h3  47.Kh3-h2  48.Kh2-g1  49.Kg1-f1  50.Kf1-e1  51.Ke1-d1  52.Kd1*c1  53.Kc1*b2  54.Kb2-a1  55.b3-b2 Kf3*f4 =

Wow, that's a complex one... :-) One the rare ones using 3 black pieces. Very pretty idea! Notice how the bishop at c1 enables the capture of the bishop at c3!

6th

Alexandre Leroux
B1B1B1B1/8/1R5B/8/1p5B/bRPRN3/N3R2B/2K4k
    ser-h=53                                          (15+3)    

1.Kh1-g1 2.Kg1-f1 3.Kf1*e2 4.Ke2*d3 5.Kd3*e3 6.Ke3-d4 7.Kd4-c5 8.Kc5*b6 9.Kb6-a7 10.Ka7*a8 11.Ka8-a7 12.Ka7-b6 13.Kb6-c5 14.Kc5-d4 15.Kd4-e4 16.Ke4-f3 17.Kf3-g2 18.Kg2*h2 19.Kh2-g2 20.Kg2-f3 21.Kf3-e4 22.Ke4-e5 23.Ke5-d6 24.Kd6-c7 25.Kc7*c8 26.Kc8-c7 27.Kc7-d6 28.Kd6-e5 29.Ke5-f5 30.Kf5-g4 31.Kg4*h4 32.Kh4-g4 33.Kg4-f5 34.Kf5-f6 35.Kf6-e7 36.Ke7*e8 37.Ke8-e7 38.Ke7-f6 39.Kf6-g6 40.Kg6*h6 41.Kh6-g7 42.Kg7*g8 43.Kg8-f7 44.Kf7-e6 45.Ke6-d5 46.Kd5-c4 47.Kc4*b3 48.Kb3-b2 49.Kb2-a1 50.Ba3-b2 51.b4*c3 52.c3-c2 53.Bb2-c3 Sa2*c3 =

Very elegant... a bishop batteries formation as we have seen a few in previous tournaments, but implemented for this tournament's conditions in a beautiful way. Look also at the ending, quite impressive!

7th

Pascal Wassong
2R4R/1R4PP/5B2/3P4/k5K1/BP6/1P2NB1N/1B6
    ser-h=52                                          (15+1)    

1.Ra4*a3 2.Ra3-a4 3.Ra4-a5 4.Ra5-a6 5.Ra6*b7 6.Rb7*c8 7.Rc8-d7 8.Rd7-e8 9.Re8-f7 10.Rf7*f6 11.Rf6-e5 12.Re5*d5 13.Rd5-c6 14.Rc6-b5 15.Rb5-b4 16.Rb4*b3 17.Rb3*b2 18.Rb2*b1 19.Rb1-c2 20.Rc2-d3 21.Rd3-e4 22.Re4-e5 23.Re5-f6 24.Rf6-g6 25.Rg6*h7 26.Rh7-g6 27.Rg6-f6 28.Rf6-e5 29.Re5-e4 30.Re4-d3 31.Rd3*e2 32.Re2-f1 33.Rf1-g2 34.Rg2*h2 35.Rh2-g2 36.Rg2-f1 37.Rf1-e2 38.Re2-d3 39.Rd3-e4 40.Re4-e5 41.Re5-f6 42.Rf6*g7 43.Rg7*h8 44.Rh8-g7 45.Rg7-f6 46.Rf6-e5 47.Re5-e4 48.Re4-d3 49.Rd3-e2 50.Re2-f1 51.Rf1-g2 52.Rg2-h1 Rg4-h3 =

Most beautiful and original! Notice the brilliant idea, of having to capture the pawn at h7 first, liberating the rook at h8 and thus enabling the king to go and capture this knight at h2, before returning to capture the rook! Hard to do better "Lortap" than that...

8th

Ralf Krätschmer
7N/6p1/8/N2k4/5K2/B2B3B/8/8 w - - 0 1
 ser-h=43                                            (6+2) 

1.Kd5-d4 2.Kd4-c3 3.Kc3-d2 4.Kd2-e1 5.Ke1-f2 6.Kf2-g1 7.Kg1-h2 8.Kh2*h3 9.Kh3-g2 10.Kg2-f2 11.Kf2-e1 12.Ke1-d2 13.Kd2-c3 14.Kc3-d4 15.Kd4-d5 16.Kd5-e6 17.Ke6-d7 18.Kd7-c7 19.Kc7-b6 20.Kb6*a5 21.Ka5-a4 22.Ka4*a3 23.Ka3-b4 24.Kb4-c5 25.Kc5-d6 26.Kd6-e7 27.Ke7-f8 28.Kf8-g8 29.Kg8*h8 30.Kh8-g8 31.Kg8-f7 32.Kf7-e6 33.Ke6-d5 34.Kd5-d4 35.Kd4-c3 36.Kc3-d2 37.Kd2-e1 38.Ke1-f2 39.Kf2-g2 40.Kg2-h3 41.Kh3-h4 42.Kh4-h5 43.Kh5-h6 Bd3-g6 =

Nice matrix, very economical! The final position also merits attention. Similar to the one of Jean-Christian. It proved an important "tabiya" position for this tournament!


Category B1
(best solution without a promoted piece in the initial position, minimum 30 moves)
 

Places

Competitors

1st

Arno Tüngler
k3R2B/7p/N2P1K1N/8/1PPP1R2/8/P2P2BP/8
   ser-h=56                                          (14+2)   

1.Ka8-a7 2.Ka7-b6 3.Kb6-a5 4.Ka5-a4 5.Ka4-a3 6.Ka3*a2 7.Ka2-b3 8.Kb3*c4 9.Kc4-b5 10.Kb5*a6 11.Ka6-b5 12.Kb5*b4 13.Kb4-c5 14.Kc5*d6 15.Kd6-d7 16.Kd7*e8 17.Ke8-d7 18.Kd7-d6 19.Kd6-c5 20.Kc5-c4 21.Kc4-d3 22.Kd3*d2 23.Kd2-e3 24.Ke3*f4 25.Kf4-e3 26.Ke3-f2 27.Kf2-g1 28.Kg1*h2 29.Kh2-g3 30.Kg3-h4 31.Kh4-h5 32.Kh5*h6 33.Kh6-h5 34.Kh5-g4 35.Kg4-f4 36.Kf4-e3 37.Ke3*d4 38.Kd4-c5 39.Kc5-d6 40.Kd6-d7 41.Kd7-e8 42.Ke8-f8 43.Kf8-g8 44.Kg8*h8 45.Kh8-g8 46.Kg8-f8 47.Kf8-e8 48.Ke8-d7 49.Kd7-d6 50.Kd6-c5 51.Kc5-d4 52.Kd4-e3 53.Ke3-f4 54.Kf4-g4 55.Kg4-h5 56.Kh5-h6 Bg2-f3 =

Again a fabulous matrix, using the non-promoted pieces very well! Brilliant start also, with the knight at a6 which cannot be captured before the king captures at least one of the blocking pawns!

2nd

Ion Murarasu
k3R2B/7p/1R1P1K1N/P7/1P1N4/3P4/5PBP/8
    ser-h=53                                         (13+2)     

1.Ka8-a7 2.Ka7-a6 3.Ka6*a5 4.Ka5-a4 5.Ka4-a3 6.Ka3-b2 7.Kb2-c3 8.Kc3*d4 9.Kd4-c5 10.Kc5*b6 11.Kb6-b5 12.Kb5*b4 13.Kb4-c5 14.Kc5*d6 15.Kd6-d7 16.Kd7*e8 17.Ke8-d7 18.Kd7-d6 19.Kd6-c5 20.Kc5-d4 21.Kd4*d3 22.Kd3-e2 23.Ke2*f2 24.Kf2-g1 25.Kg1*h2 26.Kh2-g3 27.Kg3-h4 28.Kh4-h5 29.Kh5*h6 30.Kh6-h5 31.Kh5-g4 32.Kg4-f4 33.Kf4-e3 34.Ke3-d4 35.Kd4-c5 36.Kc5-d6 37.Kd6-d7 38.Kd7-e8 39.Ke8-f8 40.Kf8-g8 41.Kg8*h8 42.Kh8-g8 43.Kg8-f8 44.Kf8-e8 45.Ke8-d7 46.Kd7-d6 47.Kd6-c5 48.Kc5-d4 49.Kd4-e3 50.Ke3-f4 51.Kf4-g4 52.Kg4-h5 53.Kh5-h6 Bg2-f3 =

Nice matrix, resembling the previous one. The starting idea is again quite elegant!

3rd

Ivan Skoba
3BN1R1/b1K1P3/BN1PP3/3R4/1P6/1P2P3/2P4k/7Q
   ser-h=50                                          (15+2)   

1.Kh2*h1 2.Kh1-h2 3.Kh2-h3 4.Kh3-h4 5.Kh4-h5 6.Kh5-h6 7.Kh6-h7 8.Kh7*g8 9.Kg8-h7 10.Kh7-g6 11.Kg6-f5 12.Kf5-e4 13.Ke4*e3 14.Ke3-d2 15.Kd2*c2 16.Kc2*b3 17.Kb3*b4 18.Kb4-a5 19.Ka5*a6 20.Ka6*b6 21.Kb6-a6 22.Ba7-c5 23.Ka6-b5 24.Kb5-c4 25.Bc5-d4 26.Kc4-d3 27.Kd3-e4 28.Bd4-e5 29.Ke4-f5 30.Kf5*e6 31.Ke6*e7 32.Ke7*e8 33.Be5-f6 34.Ke8*d8 35.Kd8-e7 36.Bf6-e5 37.Be5*d6 38.Ke7-e6 39.Bd6-e5 40.Ke6-f5 41.Kf5-e4 42.Be5-d4 43.Ke4-d3 44.Kd3-c4 45.Bd4-c5 46.Kc4-b5 47.Kb5-a6 48.Ka6-a7 49.Ka7-a8 50.Bc5-a7 Rd5-a5 =

Similar to the one seen in the A category, but without promoted pieces. Just brilliant!

4th

Pascal Wassong
Qk5R/5RPP/2P5/4P3/6K1/1P6/1P2NB1N/1B6
    ser-h=48                                         (14+1)   

1.Rb8*a8 2.Ra8-b8 3.Rb8-c8 4.Rc8-d8 5.Rd8-e8 6.Re8*f7 7.Rf7-e6 8.Re6-d5 9.Rd5*c6 10.Rc6-b5 11.Rb5-b4 12.Rb4*b3 13.Rb3*b2 14.Rb2*b1 15.Rb1-c2 16.Rc2-d3 17.Rd3-e4 18.Re4*e5 19.Re5-f6 20.Rf6-g6 21.Rg6*h7 22.Rh7-g6 23.Rg6-f6 24.Rf6-e5 25.Re5-e4 26.Re4-d3 27.Rd3*e2 28.Re2-f1 29.Rf1-g2 30.Rg2*h2 31.Rh2-g2 32.Rg2-f1 33.Rf1-e2 34.Re2-d3 35.Rd3-e4 36.Re4-e5 37.Re5-f6 38.Rf6*g7 39.Rg7*h8 40.Rh8-g7 41.Rg7-f6 42.Rf6-e5 43.Re5-e4 44.Re4-d3 45.Rd3-e2 46.Re2-f1 47.Rf1-g2 48.Rg2-h1 Rg4-h3 =

Very nice version without promoted pieces.

5th

Cornel Pacurar
6B1/8/3R3P/5PN1/3B4/PNPP1K2/P6R/k7
   ser-h=39                                         (13+1)   

1.Ka1-b1 2.Kb1-c1 3.Kc1-d1 4.Kd1-e1 5.Ke1-f1 6.Kf1-g1 7.Kg1*h2 8.Kh2-g1 9.Kg1-f1 10.Kf1-e1 11.Ke1-d2 12.Kd2*d3 13.Kd3*c3 14.Kc3-b2 15.Kb2*a2 16.Ka2*a3 17.Ka3-b4 18.Kb4-c5 19.Kc5*d6 20.Kd6-e5 21.Ke5*f5 22.Kf5*g5 23.Kg5*h6 24.Kh6-g7 25.Kg7*g8 26.Kg8-f7 27.Kf7-e6 28.Ke6-d5 29.Kd5-c4 30.Kc4*b3 31.Kb3-c4 32.Kc4-d5 33.Kd5-e6 34.Ke6-f5 35.Kf5-g5 36.Kg5-h4 37.Kh4-h3 38.Kh3-h2 39.Kh2-h1 Kf3-g3 =

Nice and elegant matrix.

6th and 7th

Ralf Krätschmer, Jean-Christian Galli
6S1/6p1/7k/S7/5K2/B2B4/8/8
   ser-h=38                                            (5+2)   

1.Kh6-h5 2.Kh5-h4 3.Kh4-h3 4.Kh3-g2 5.Kg2-f2 6.Kf2-e1 7.Ke1-d2 8.Kd2-c3 9.Kc3-d4 10.Kd4-d5 11.Kd5-e6 12.Ke6-d7 13.Kd7-c7 14.Kc7-b6 15.Kb6*a5 16.Ka5-a4 17.Ka4*a3 18.Ka3-b4 19.Kb4-c5 20.Kc5-d6 21.Kd6-e7 22.Ke7-f8 23.Kf8-g8 24.Kg8*h8 25.Kh8-g8 26.Kg8-f7 27.Kf7-e6 28.Ke6-d5 29.Kd5-d4 30.Kd4-c3 31.Kc3-d2 32.Kd2-e1 33.Ke1-f2 34.Kf2-g2 35.Kg2-h3 36.Kh3-h4 37.Kh4-h5 38.Kh5-h6 Bd3-g6 =

Very economical and interesting. Notice the king tour starting and ending at h6!


Category C1 (best solution that can include promoted pieces in the initial position, minimum 25 moves (for high))
 

Places

Competitors

1st

Arno Tüngler
kR1B2Nn/5n2/6KP/B3NP1B/P5P1/B7/P7/R5RQ
    ser-h=34                                         (16+3)    

1.Ka8-a7 2.Ka7-a6 3.Ka6*a5 4.Ka5*a4 5.Ka4*a3 6.Ka3*a2 7.Ka2*a1 8.Ka1-a2 9.Ka2-a3 10.Ka3-a4 11.Ka4-a5 12.Ka5-a6 13.Ka6-a7 14.Ka7*b8

a) 15.Kb8-c8 16.Kc8*d8 17.Kd8-e8 18.Ke8-f8 19.Kf8*g8 20.Sf7-d6 21.Sd6*f5 22.Sf5*h6 23.Sh6*g4 24.Sh8-f7 25.Sg4*e5 26.Se5-f3 27.Sf3*g1 28.Sg1-e2 29.Se2-g3 30.Sg3*h5 31.Sh5-f6 32.Sf6-h7 33.Kg8-h8 Kg6*f7 =
b) 15.Kb7 16.Kc8 17.Kxd8 18.Ke8 19.Kf8 20.Kxg8 21.Sd6 22.Sxf5 23.Sxh6 24.Sxg4 25.Shf7 26.Sgxe5 27.Sf3 28.Sxg1 29.Se2 30.Sg3 31.Sxh5 32.Sf6 33.Sh7 34.Kh8 Kxf7=

Absolutely brilliant idea... quite incredible. Look closely at all the elements. Starting with the fact that the king cannot take the rook as he would then be imprisoned. Then the two(!) black knights, how they interact perfectly, each move being unique, using the Lortap condition so well! And the idea of the queen at h1, permitting the final position...

2nd

Cornel Pacurar
7B/1pN5/1R6/P7/P6B/N1K5/R7/B1N2BRk
    ser-h=31                                         (13+2)     

1.Kh1-h2 2.Kh2-h3 3.Kh3*h4 4.Kh4-h5 5.Kh5-h6 6.Kh6-h7 7.Kh7*h8 8.Kh8-h7 9.Kh7-h6 10.Kh6-h5 11.Kh5-h4 12.Kh4-h3 13.Kh3-h2 14.Kh2*g1 15.Kg1-f2 16.Kf2-e1 17.Ke1-d1 18.Kd1*c1 19.Kc1-b1 20.Kb1*a2 21.Ka2*a1 22.Ka1-a2 23.Ka2*a3 24.Ka3*a4 25.Ka4*a5 26.Ka5*b6 27.Kb6*c7

a) 28.Kc7-b6 29.Kb6-a5 30.b7-b6 Bf1-b5 =
b) 28.Kc7-c6 29.Kc6-b6 30.Kb6-a5 31.b7-b6 Bf1-b5 =

Very nice matrix! Again, the Lortap condition plays of course a vital role here. For example the bishop at h8, protecting the white king and not permitting the final position if not captured! Pretty final position also...

3rd and 4th

Ralf Krätschmer, Jean-Christian Galli
7B/Np6/1R6/P7/7B/2K5/8/5BRk
   ser-h=29                                            (8+2)   

1.Kh1-h2 2.Kh2-h3 3.Kh3*h4 4.Kh4-h5 5.Kh5-h6 6.Kh6-h7 7.Kh7*h8 8.Kh8-h7 9.Kh7-h6 10.Kh6-h5 11.Kh5-h4 12.Kh4-h3 13.Kh3-h2 14.Kh2*g1 15.Kg1-f2 16.Kf2-e1 17.Ke1-d1 18.Kd1-c1 19.Kc1-b1

a) 20.Kb1-a2 21.Ka2-a3 22.Ka3-a4 23.Ka4*a5 24.Ka5*b6 25.Kb6*a7 26.Ka7-b6 27.Kb6-a5 28.b7-b6 Bf1-b5 =
b) 20.Kb1-a1 21.Ka1-a2 22.Ka2-a3 23.Ka3-a4 24.Ka4*a5 25.Ka5*b6 26.Kb6*a7 27.Ka7-b6 28.Kb6-a5 29.b7-b6 Bf1-b5 =

Same base matrix as the preceding one, nice and economical.


Category D1 (best solution without a promoted piece in the initial position, minimum 20 moves (for high))
  

Places

Competitors

1st

Arno Tüngler
1R1B2Nn/5n2/k5KP/4NP1P/6P1/8/B7/6RQ
  ser-h=30                                         (12+3)  

1.Ka6-a5 2.Ka5-a4 3.Ka4-a3 4.Ka3*a2 5.Ka2-a3 6.Ka3-a4 7.Ka4-a5 8.Ka5-a6 9.Ka6-a7 10.Ka7*b8

a) 11.Kb8-c8 12.Kc8*d8 13.Kd8-e8 14.Ke8-f8 15.Kf8*g8 16.Sf7-d6 17.Sd6*f5 18.Sf5*h6 19.Sh6*g4 20.Sh8-f7 21.Sg4*e5 22.Se5-f3 23.Sf3*g1 24.Sg1-e2 25.Se2-g3 26.Sg3*h5 27.Sh5-f6 28.Sf6-h7 29.Kg8-h8 Kg6*f7 =
b) 11.Kb8-b7 12.Kb7-c8 13.Kc8*d8 14.Kd8-e8 15.Ke8-f8 16.Kf8*g8 17.Sf7-d6 18.Sd6*f5 19.Sf5*h6 20.Sh6*g4 21.Sh8-f7 22.Sg4*e5 23.Se5-f3 24.Sf3*g1 25.Sg1-e2 26.Se2-g3 27.Sg3*h5 28.Sh5-f6 29.Sf6-h7 30.Kg8-h8 Kg6*f7 =

Based on the fabulous idea seen previously, a masterpiece...

2nd, 3rd and 4th

Alexandre Leroux, Ion Murarasu, Ralf Krätschmer
1Rk3B1/R7/P7/P6p/P6P/P4K1P/P7/B3NN2
  ser-h=29                                          (14+2)  

1.Kc8*b8 2.Kb8-c8 3.Kc8-d8 4.Kd8-e8 5.Ke8-f8 6.Kf8*g8 7.Kg8-f8 8.Kf8-e8 9.Ke8-d8 10.Kd8-c8 11.Kc8-b8 12.Kb8*a7 13.Ka7*a6 14.Ka6*a5 15.Ka5*a4 16.Ka4*a3 17.Ka3*a2 18.Ka2-b1 19.Kb1-c1 20.Kc1-d1 21.Kd1*e1 22.Ke1*f1 23.Kf1-g1

a) 24.Kg1-h2 25.Kh2*h3 26.Kh3*h4 27.Kh4-h3 28.h5-h4 Ba1-e5 =
b) 24.Kg1-h1 25.Kh1-h2 26.Kh2*h3 27.Kh3*h4 28.Kh4-h3 29.h5-h4 Ba1-e5 =

Very pretty matrix. All the pieces except the white king being in the corners!

5th and 6th

Cornel Pacurar, Jean-Christian Galli
7B/Np6/1R6/P7/8/2K4k/8/5BR1
  ser-h=27                                            (7+2)  

1.Kh3-h4 2.Kh4-h5 3.Kh5-h6 4.Kh6-h7 5.Kh7*h8 6.Kh8-h7 7.Kh7-h6 8.Kh6-h5 9.Kh5-h4 10.Kh4-h3 11.Kh3-h2 12.Kh2*g1 13.Kg1-f2 14.Kf2-e1 15.Ke1-d1 16.Kd1-c1 17.Kc1-b1

a) 18.Kb1-a2 19.Ka2-a3 20.Ka3-a4 21.Ka4*a5 22.Ka5*b6 23.Kb6*a7 24.Ka7-b6 25.Kb6-a5 26.b7-b6 Bf1-b5 =
b) 18.Kb1-a1 19.Ka1-a2 20.Ka2-a3 21.Ka3-a4 22.Ka4*a5 23.Ka5*b6 24.Kb6*a7 25.Ka7-b6 26.Kb6-a5 27.b7-b6 Bf1-b5 =

Based on the promising base matrix seen previously, nice version without promoted pieces.


Category A2 (initial position having at least one promoted piece, and better than equivalent category B2 ranking)
 

Number of pieces in total in the initial position

Compositions

8

Ralf Krätschmer, Jean-Christian Galli
7N/6p1/8/N2k4/5K2/B2B3B/8/8 w - - 0 1
 ser-h=43                                            (6+2) 

1.Kd5-d4 2.Kd4-c3 3.Kc3-d2 4.Kd2-e1 5.Ke1-f2 6.Kf2-g1 7.Kg1-h2 8.Kh2*h3 9.Kh3-g2 10.Kg2-f2 11.Kf2-e1 12.Ke1-d2 13.Kd2-c3 14.Kc3-d4 15.Kd4-d5 16.Kd5-e6 17.Ke6-d7 18.Kd7-c7 19.Kc7-b6 20.Kb6*a5 21.Ka5-a4 22.Ka4*a3 23.Ka3-b4 24.Kb4-c5 25.Kc5-d6 26.Kd6-e7 27.Ke7-f8 28.Kf8-g8 29.Kg8*h8 30.Kh8-g8 31.Kg8-f7 32.Kf7-e6 33.Ke6-d5 34.Kd5-d4 35.Kd4-c3 36.Kc3-d2 37.Kd2-e1 38.Ke1-f2 39.Kf2-g2 40.Kg2-h3 41.Kh3-h4 42.Kh4-h5 43.Kh5-h6 Bd3-g6 =

9

Jean-Christian Galli
N6B/1p1B4/8/8/2K5/B3B3/kN6/8
 ser-h=48                                            (7+2) 

1.Ka2-b1 2.Kb1-c2 3.Kc2-d1 4.Kd1-e2 5.Ke2-f3 6.Kf3-g3 7.Kg3-h4 8.Kh4-h5 9.Kh5-g6 10.Kg6-h7 11.Kh7*h8 12.Kh8-g7 13.Kg7-f6 14.Kf6-e5 15.Ke5-e4 16.Ke4-f3 17.Kf3-e2 18.Ke2-d1 19.Kd1-c2 20.Kc2-b1 21.Kb1-a2 22.Ka2*a3 23.Ka3*b2 24.Kb2-c2 25.Kc2-d1 26.Kd1-e2 27.Ke2-f3 28.Kf3-e4 29.Ke4-e5 30.Ke5-d6 31.Kd6*d7 32.Kd7-c8 33.Kc8-b8 34.Kb8*a8 35.Ka8-b8 36.Kb8-c7 37.Kc7-d6 38.Kd6-e5 39.Ke5-e4 40.Ke4-f3 41.Kf3-e2 42.Ke2-d1 43.Kd1-c2 44.Kc2-b2 45.Kb2-a3 46.Ka3-a4 47.Ka4-a5 48.Ka5-a6 Be3-b6 =

10

Ion Murarasu, Arno Tüngler
3k1B1B/1B1P3p/5K1S/7S/8/8/4R3/8
  ser-h=51                                            (8+2)  

1.Kd8-c7 2.Kc7-b6 3.Kb6-b5 4.Kb5-c4 5.Kc4-d3 6.Kd3*e2 7.Ke2-d3 8.Kd3-c4 9.Kc4-b5 10.Kb5-b6 11.Kb6-c7 12.Kc7*d7 13.Kd7-e8 14.Ke8*f8 15.Kf8-e8 16.Ke8-d7 17.Kd7-d6 18.Kd6-c5 19.Kc5-d4 20.Kd4-e3 21.Ke3-f2 22.Kf2-g1 23.Kg1-h2 24.Kh2-h3 25.Kh3-h4 26.Kh4*h5 27.Kh5*h6 28.Kh6-h5 29.Kh5-g4 30.Kg4-f4 31.Kf4-e3 32.Ke3-d4 33.Kd4-c5 34.Kc5-d6 35.Kd6-d7 36.Kd7-e8 37.Ke8-f8 38.Kf8-g8 39.Kg8*h8 40.Kh8-g8 41.Kg8-f8 42.Kf8-e8 43.Ke8-d7 44.Kd7-d6 45.Kd6-c5 46.Kc5-d4 47.Kd4-e3 48.Ke3-f4 49.Kf4-g4 50.Kg4-h5 51.Kh5-h6 Bb7-f3 =

11

Arno Tüngler
4B2B/7p/1P1k1K1N/7N/8/8/4R3/6BB
 ser-h=54                                            (9+2)  

1.Kd6-c7 2.Kc7-b8 3.Kb8-a7 4.Ka7-a6 5.Ka6-b5 6.Kb5-c4 7.Kc4-d3 8.Kd3*e2 9.Ke2-f1 10.Kf1*g1 11.Kg1-f2 12.Kf2-e3 13.Ke3-d4 14.Kd4-c5 15.Kc5*b6 16.Kb6-c7 17.Kc7-d8 18.Kd8*e8 19.Ke8-d7 20.Kd7-d6 21.Kd6-c5 22.Kc5-d4 23.Kd4-e3 24.Ke3-f2 25.Kf2-g1 26.Kg1-h2 27.Kh2-h3 28.Kh3-h4 29.Kh4*h5 30.Kh5*h6 31.Kh6-h5 32.Kh5-g4 33.Kg4-f4 34.Kf4-e3 35.Ke3-d4 36.Kd4-c5 37.Kc5-d6 38.Kd6-d7 39.Kd7-e8 40.Ke8-f8 41.Kf8-g8 42.Kg8*h8 43.Kh8-g8 44.Kg8-f8 45.Kf8-e8 46.Ke8-d7 47.Kd7-d6 48.Kd6-c5 49.Kc5-d4 50.Kd4-e3 51.Ke3-f4 52.Kf4-g4 53.Kg4-h5 54.Kh5-h6 Bh1-f3 =

12

Arno Tüngler
4B2B/7p/1P1R1K1N/7N/2k5/8/4R3/6BB
  ser-h=60                                          (10+2)  

1.Kc4-b5 2.Kb5-a6 3.Ka6-a7 4.Ka7-b8 5.Kb8-c7 6.Kc7*d6 7.Kd6-c7 8.Kc7-b8 9.Kb8-a7 10.Ka7-a6 11.Ka6-b5 12.Kb5-c4 13.Kc4-d3 14.Kd3*e2 15.Ke2-f1 16.Kf1*g1 17.Kg1-f2 18.Kf2-e3 19.Ke3-d4 20.Kd4-c5 21.Kc5*b6 22.Kb6-c7 23.Kc7-d8 24.Kd8*e8 25.Ke8-d7 26.Kd7-d6 27.Kd6-c5 28.Kc5-d4 29.Kd4-e3 30.Ke3-f2 31.Kf2-g1 32.Kg1-h2 33.Kh2-h3 34.Kh3-h4 35.Kh4*h5 36.Kh5*h6 37.Kh6-h5 38.Kh5-g4 39.Kg4-f4 40.Kf4-e3 41.Ke3-d4 42.Kd4-c5 43.Kc5-d6 44.Kd6-d7 45.Kd7-e8 46.Ke8-f8 47.Kf8-g8 48.Kg8*h8 49.Kh8-g8 50.Kg8-f8 51.Kf8-e8 52.Ke8-d7 53.Kd7-d6 54.Kd6-c5 55.Kc5-d4 56.Kd4-e3 57.Ke3-f4 58.Kf4-g4 59.Kg4-h5 60.Kh5-h6 Bh1-f3 =

13

Arno Tüngler
4B2B/7p/1P1R1K1N/7N/2P5/8/k3R3/6BB
  ser-h=62                                          (11+2)   

1.Ka2-b3 2.Kb3*c4 3.Kc4-b5 4.Kb5-a6 5.Ka6-a7 6.Ka7-b8 7.Kb8-c7 8.Kc7*d6 9.Kd6-c7 10.Kc7-b8 11.Kb8-a7 12.Ka7-a6 13.Ka6-b5 14.Kb5-c4 15.Kc4-d3 16.Kd3*e2 17.Ke2-f1 18.Kf1*g1 19.Kg1-f2 20.Kf2-e3 21.Ke3-d4 22.Kd4-c5 23.Kc5*b6 24.Kb6-c7 25.Kc7-d8 26.Kd8*e8 27.Ke8-d7 28.Kd7-d6 29.Kd6-c5 30.Kc5-d4 31.Kd4-e3 32.Ke3-f2 33.Kf2-g1 34.Kg1-h2 35.Kh2-h3 36.Kh3-h4 37.Kh4*h5 38.Kh5*h6 39.Kh6-h5 40.Kh5-g4 41.Kg4-f4 42.Kf4-e3 43.Ke3-d4 44.Kd4-c5 45.Kc5-d6 46.Kd6-d7 47.Kd7-e8 48.Ke8-f8 49.Kf8-g8 50.Kg8*h8 51.Kh8-g8 52.Kg8-f8 53.Kf8-e8 54.Ke8-d7 55.Kd7-d6 56.Kd6-c5 57.Kc5-d4 58.Kd4-e3 59.Ke3-f4 60.Kf4-g4 61.Kg4-h5 62.Kh5-h6 Bh1-f3 =

14

Arno Tüngler
4B2B/7p/BP1R1K1N/7N/8/2P5/4R3/k5BB
  ser-h=63                                          (12+2)   

1.Ka1-b2 2.Kb2*c3 3.Kc3-b4 4.Kb4-a5 5.Ka5*a6 6.Ka6-a7 7.Ka7-b8 8.Kb8-c7 9.Kc7*d6 10.Kd6-c7 11.Kc7-b8 12.Kb8-a7 13.Ka7-a6 14.Ka6-b5 15.Kb5-c4 16.Kc4-d3 17.Kd3*e2 18.Ke2-f1 19.Kf1*g1 20.Kg1-f2 21.Kf2-e3 22.Ke3-d4 23.Kd4-c5 24.Kc5*b6 25.Kb6-c7 26.Kc7-d8 27.Kd8*e8 28.Ke8-d7 29.Kd7-d6 30.Kd6-c5 31.Kc5-d4 32.Kd4-e3 33.Ke3-f2 34.Kf2-g1 35.Kg1-h2 36.Kh2-h3 37.Kh3-h4 38.Kh4*h5 39.Kh5*h6 40.Kh6-h5 41.Kh5-g4 42.Kg4-f4 43.Kf4-e3 44.Ke3-d4 45.Kd4-c5 46.Kc5-d6 47.Kd6-d7 48.Kd7-e8 49.Ke8-f8 50.Kf8-g8 51.Kg8*h8 52.Kh8-g8 53.Kg8-f8 54.Kf8-e8 55.Ke8-d7 56.Kd7-d6 57.Kd6-c5 58.Kc5-d4 59.Kd4-e3 60.Ke3-f4 61.Kf4-g4 62.Kg4-h5 63.Kh5-h6 Bh1-f3 =

15

Arno Tüngler
2NRB2B/7p/1P3K1N/k6N/2B5/2P5/4R3/6BB
  ser-h=65                                          (13+2)   

1.Ka5-a4 2.Ka4-a3 3.Ka3-b2 4.Kb2*c3 5.Kc3*c4 6.Kc4-b5 7.Kb5-a6 8.Ka6-a7 9.Ka7-b8 10.Kb8-c7 11.Kc7*d8 12.Kd8*c8 13.Kc8-b8 14.Kb8-a7 15.Ka7-a6 16.Ka6-b5 17.Kb5-c4 18.Kc4-d3 19.Kd3*e2 20.Ke2-f1 21.Kf1*g1 22.Kg1-f2 23.Kf2-e3 24.Ke3-d4 25.Kd4-c5 26.Kc5*b6 27.Kb6-c7 28.Kc7-d8 29.Kd8*e8 30.Ke8-d7 31.Kd7-d6 32.Kd6-c5 33.Kc5-d4 34.Kd4-e3 35.Ke3-f2 36.Kf2-g1 37.Kg1-h2 38.Kh2-h3 39.Kh3-h4 40.Kh4*h5 41.Kh5*h6 42.Kh6-h5 43.Kh5-g4 44.Kg4-f4 45.Kf4-e3 46.Ke3-d4 47.Kd4-c5 48.Kc5-d6 49.Kd6-d7 50.Kd7-e8 51.Ke8-f8 52.Kf8-g8 53.Kg8*h8 54.Kh8-g8 55.Kg8-f8 56.Kf8-e8 57.Ke8-d7 58.Kd7-d6 59.Kd6-c5 60.Kc5-d4 61.Kd4-e3 62.Ke3-f4 63.Kf4-g4 64.Kg4-h5 65.Kh5-h6 Bh1-f3 =

16

Arno Tüngler
2NRB2B/7p/1P3K1N/B6N/2B5/2P5/4R3/2k3BB
  ser-h=69                                          (14+2)   

1.Kc1-b2 2.Kb2-a3 3.Ka3-a4 4.Ka4*a5 5.Ka5-a4 6.Ka4-a3 7.Ka3-b2 8.Kb2*c3 9.Kc3*c4 10.Kc4-b5 11.Kb5-a6 12.Ka6-a7 13.Ka7-b8 14.Kb8-c7 15.Kc7*d8 16.Kd8*c8 17.Kc8-b8 18.Kb8-a7 19.Ka7-a6 20.Ka6-b5 21.Kb5-c4 22.Kc4-d3 23.Kd3*e2 24.Ke2-f1 25.Kf1*g1 26.Kg1-f2 27.Kf2-e3 28.Ke3-d4 29.Kd4-c5 30.Kc5*b6 31.Kb6-c7 32.Kc7-d8 33.Kd8*e8 34.Ke8-d7 35.Kd7-d6 36.Kd6-c5 37.Kc5-d4 38.Kd4-e3 39.Ke3-f2 40.Kf2-g1 41.Kg1-h2 42.Kh2-h3 43.Kh3-h4 44.Kh4*h5 45.Kh5*h6 46.Kh6-h5 47.Kh5-g4 48.Kg4-f4 49.Kf4-e3 50.Ke3-d4 51.Kd4-c5 52.Kc5-d6 53.Kd6-d7 54.Kd7-e8 55.Ke8-f8 56.Kf8-g8 57.Kg8*h8 58.Kh8-g8 59.Kg8-f8 60.Kf8-e8 61.Ke8-d7 62.Kd7-d6 63.Kd6-c5 64.Kc5-d4 65.Kd4-e3 66.Ke3-f4 67.Kf4-g4 68.Kg4-h5 69.Kh5-h6 Bh1-f3 =

17

Arno Tüngler
2NRB2B/7p/1P3K1N/B6N/2B5/2P5/4R3/B1k3BB
  ser-h=71                                          (15+2)   

1.Kc1-b1 2.Kb1*a1 3.Ka1-b2 4.Kb2-a3 5.Ka3-a4 6.Ka4*a5 7.Ka5-a4 8.Ka4-a3 9.Ka3-b2 10.Kb2*c3 11.Kc3*c4 12.Kc4-b5 13.Kb5-a6 14.Ka6-a7 15.Ka7-b8 16.Kb8-c7 17.Kc7*d8 18.Kd8*c8 19.Kc8-b8 20.Kb8-a7 21.Ka7-a6 22.Ka6-b5 23.Kb5-c4 24.Kc4-d3 25.Kd3*e2 26.Ke2-f1 27.Kf1*g1 28.Kg1-f2 29.Kf2-e3 30.Ke3-d4 31.Kd4-c5 32.Kc5*b6 33.Kb6-c7 34.Kc7-d8 35.Kd8*e8 36.Ke8-d7 37.Kd7-d6 38.Kd6-c5 39.Kc5-d4 40.Kd4-e3 41.Ke3-f2 42.Kf2-g1 43.Kg1-h2 44.Kh2-h3 45.Kh3-h4 46.Kh4*h5 47.Kh5*h6 48.Kh6-h5 49.Kh5-g4 50.Kg4-f4 51.Kf4-e3 52.Ke3-d4 53.Kd4-c5 54.Kc5-d6 55.Kd6-d7 56.Kd7-e8 57.Ke8-f8 58.Kf8-g8 59.Kg8*h8 60.Kh8-g8 61.Kg8-f8 62.Kf8-e8 63.Ke8-d7 64.Kd7-d6 65.Kd6-c5 66.Kc5-d4 67.Kd4-e3 68.Ke3-f4 69.Kf4-g4 70.Kg4-h5 71.Kh5-h6 Bh1-f3 =

18

Arno Tüngler
2NRB2B/7p/1P3K1N/B6N/2B5/2P5/1k2R3/B1Q3BB
  ser-h=72                                          (16+2)   

1.Kb2*c1 2.Kc1-b1 3.Kb1*a1 4.Ka1-b2 5.Kb2-a3 6.Ka3-a4 7.Ka4*a5 8.Ka5-a4 9.Ka4-a3 10.Ka3-b2 11.Kb2*c3 12.Kc3*c4 13.Kc4-b5 14.Kb5-a6 15.Ka6-a7 16.Ka7-b8 17.Kb8-c7 18.Kc7*d8 19.Kd8*c8 20.Kc8-b8 21.Kb8-a7 22.Ka7-a6 23.Ka6-b5 24.Kb5-c4 25.Kc4-d3 26.Kd3*e2 27.Ke2-f1 28.Kf1*g1 29.Kg1-f2 30.Kf2-e3 31.Ke3-d4 32.Kd4-c5 33.Kc5*b6 34.Kb6-c7 35.Kc7-d8 36.Kd8*e8 37.Ke8-d7 38.Kd7-d6 39.Kd6-c5 40.Kc5-d4 41.Kd4-e3 42.Ke3-f2 43.Kf2-g1 44.Kg1-h2 45.Kh2-h3 46.Kh3-h4 47.Kh4*h5 48.Kh5*h6 49.Kh6-h5 50.Kh5-g4 51.Kg4-f4 52.Kf4-e3 53.Ke3-d4 54.Kd4-c5 55.Kc5-d6 56.Kd6-d7 57.Kd7-e8 58.Ke8-f8 59.Kf8-g8 60.Kg8*h8 61.Kh8-g8 62.Kg8-f8 63.Kf8-e8 64.Ke8-d7 65.Kd7-d6 66.Kd6-c5 67.Kc5-d4 68.Kd4-e3 69.Ke3-f4 70.Kf4-g4 71.Kg4-h5 72.Kh5-h6 Bh1-f3 =


Category B2 (initial position having no promoted pieces)
 

Number of pieces in total in the initial position

Compositions

3

Pascal Wassong, Axel Gilbert, Arno Tüngler, Ralf Krätschmer, Ivan Skoba, Cornel Pacurar, Ion Murarasu, Mario Richter
8/8/5K1k/8/4B3/8/8/8
ser-h=12                                            (2+1)

1.Rh6-h5 2.Rh5-g4 3.Rg4-f4 4.Rf4-e3 5.Re3-d4 6.Rd4-c5 7.Rc5-d6 8.Rd6-d7 9.Rd7-e8 10.Re8-f8 11.Rf8-g8 12.Rg8-h8 Rf6-f7 =

4

Pascal Wassong, Ivan Skoba, Ion Murarasu, Arno Tüngler, Jean-Christian Galli
7R/8/8/8/6K1/8/5B2/7k
ser-h=18                                            (3+1)

1.Kh1-g2   2.Kg2-f1   3.Kf1-e2   4.Ke2-d3   5.Kd3-e4   6.Ke4-e5   7.Ke5-f6   8.Kf6-g7   9.Kg7*h8  10.Kh8-g7  11.Kg7-f6  12.Kf6-e5  13.Ke5-e4  14.Ke4-d3  15.Kd3-e2  16.Ke2-f1  17.Kf1-g2  18.Kg2-h1 Kg4-h3 =

Axel Gilbert, Ralf Krätschmer, Arno Tüngler, Ivan Skoba, Pascal Wassong, Ion Murarasu, Cornel Pacurar
8/5R2/8/4B3/8/5K2/8/7k
ser-h=18                                           (3+1) 

1.Kh1-g1 2.Kg1-f1 3.Kf1-e1 4.Ke1-d2 5.Kd2-d3 6.Kd3-c4 7.Kc4-d5 8.Kd5-e6 9.Ke6*f7 10.Kf7-e6 11.Ke6-d5 12.Kd5-c4 13.Kc4-d3 14.Kd3-d2 15.Kd2-e1 16.Ke1-f1 17.Kf1-g1 18.Kg1-h1 Kf3-f2 =

Pascal Wassong, Arno Tüngler
8/7p/8/8/6R1/8/5F2/7r
 ser-h=18                                            (2+2) 

1.Kh1-g2 2.Kg2-f1 3.Kf1-e2 4.Ke2-d3 5.Kd3-e4 6.Ke4-e5 7.Ke5-f6 8.Kf6-g6 9.h7-h5 10.h5-h4 11.Kg6-f6 12.Kf6-e5 13.Ke5-e4 14.Ke4-d3 15.Kd3-e2 16.Ke2-f1 17.Kf1-g2 18.Kg2-h1 Kg4-h3 =

Ralf Krätschmer
8/5K1p/8/8/8/1kR5/8/8
 ser-h=18                                            (2+2) 

1.Kb3-b2 2.h7-h5 3.h5-h4 4.h4-h3 5.h3-h2 6.h2-h1=B 7.Bh1-e4 8.Be4-c2 9.Kb2-c1 10.Kc1-d2 11.Bc2-d3 12.Kd2-e3 13.Ke3-f4 14.Kf4-g5 15.Kg5-h6 16.Kh6-h7 17.Kh7-h8 18.Bd3-h7 Rc3-h3 =

Pascal Wassong
8/5p2/2k5/8/3R4/1K6/8/8
 ser-h=18                                            (2+2) 

1.f7-f5 2.f5-f4 3.f4-f3 4.f3-f2 5.f2-f1=F 6.Ff1-g2 7.Fg2-d5 8.Rc6-d6 9.Rd6-e5 10.Fd5-e4 11.Re5-f4 12.Rf4-e3 13.Fe4-d3 14.Re3-d2 15.Rd2-c1 16.Rc1-b1 17.Rb1-a1 18.Fd3-b1 Td4-d1 =

Ivan Skoba
8/2K3p1/4k3/3R4/8/8/8/8
 ser-h=18                                            (2+2) 

1.g7-g5 2.g5-g4 3.g4-g3 4.g3-g2 5.g2-g1=B 6.Bg1-d4 7.Bd4-e5 8.Ke6-f5 9.Kf5-e4 10.Be5-d4 11.Ke4-d3 12.Kd3-c4 13.Bd4-c5 14.Kc4-b5 15.Kb5-a6 16.Ka6-a7 17.Ka7-a8 18.Bc5-a7 Rd5-a5 =

5

Ralf Krätschmer, Jean-Christian Galli
6S1/6p1/7k/8/5K2/3B4/8/8
  ser-h=26                                            (3+2)  

1.Kh6-h5 2.Kh5-h4 3.Kh4-h3 4.Kh3-g2 5.Kg2-f2 6.Kf2-e1 7.Ke1-d2 8.Kd2-c3 9.Kc3-d4 10.Kd4-d5 11.Kd5-e6 12.Ke6-f7 13.Kf7*g8 14.Kg8-f7 15.Kf7-e6 16.Ke6-d5 17.Kd5-d4 18.Kd4-c3 19.Kc3-d2 20.Kd2-e1 21.Ke1-f2 22.Kf2-g2 23.Kg2-h3 24.Kh3-h4 25.Kh4-h5 26.Kh5-h6 Bd3-g6 =

Pascal Wassong, Ivan Skoba
8/7p/8/2C5/3T4/1R6/8/2r5
   ser-h=26                                            (3+2)   

1.h7-h5 2.h5-h4 3.h4-h3 4.h3-h2 5.h2-h1=F 6.Fh1-e4 7.Fe4-d3 8.Rc1-d2 9.Rd2-e3 10.Fd3-e4 11.Re3-f4 12.Rf4-e5 13.Fe4-d5 14.Re5-d6 15.Rd6*c5 16.Rc5-d6 17.Rd6-e5 18.Fd5-e4 19.Re5-f4 20.Rf4-e3 21.Fe4-d3 22.Re3-d2 23.Rd2-c1 24.Rc1-b1 25.Rb1-a1 26.Fd3-b1 Td4-d1 =

Ion Murarasu, Arno Tüngler
8/8/5Bp1/7k/8/5K2/8/7B
 ser-h=26                                            (3+2) 

1.Kh5-h6 2.Kh6-h7 3.Kh7-g8 4.Kg8-f7 5.Kf7-e6 6.Ke6-d5 7.Kd5-c4 8.Kc4-d3 9.Kd3-d2 10.Kd2-e1 11.Ke1-f1 12.Kf1-g1 13.Kg1*h1 14.Kh1-g1 15.Kg1-f1 16.Kf1-e1 17.Ke1-d2 18.Kd2-d3 19.Kd3-c4 20.Kc4-d5 21.Kd5-e6 22.Ke6-f7 23.Kf7-g8 24.Kg8-h7 25.Kh7-h6 26.Kh6-h5 Bf6-g5 =

Ralf Krätschmer
8/8/8/2B5/8/3K1k2/6p1/5S2
 ser-h=26                                            (3+2) 

1.Kf3-f4 2.Kf4-e5 3.Ke5-d5 4.Kd5-c6 5.Kc6-b5 6.Kb5-a4 7.Ka4-b3 8.Kb3-b2 9.Kb2-c1 10.Kc1-d1 11.Kd1-e1 12.Ke1*f1 13.Kf1-e1 14.Ke1-d1 15.Kd1-c1 16.Kc1-b2 17.Kb2-b3 18.Kb3-a4 19.Ka4-b5 20.Kb5-c6 21.Kc6-d5 22.Kd5-e5 23.Ke5-f4 24.Kf4-g3 25.Kg3-h2 26.Kh2-h1 Bc5-g1 =

6

Ralf Krätschmer, Jean-Christian Galli
6S1/6p1/7k/8/5K2/B2B4/8/8
  ser-h=31                                            (4+2)  

1.Kh6-h5 2.Kh5-h4 3.Kh4-h3 4.Kh3-g2 5.Kg2-f2 6.Kf2-e1 7.Ke1-d2 8.Kd2-c3 9.Kc3-b3 10.Kb3*a3 11.Ka3-b4 12.Kb4-c5 13.Kc5-d6 14.Kd6-e7 15.Ke7-f8 16.Kf8-g8 17.Kg8*h8 18.Kh8-g8 19.Kg8-f7 20.Kf7-e6 21.Ke6-d5 22.Kd5-d4 23.Kd4-c3 24.Kc3-d2 25.Kd2-e1 26.Ke1-f2 27.Kf2-g2 28.Kg2-h3 29.Kh3-h4 30.Kh4-h5 31.Kh5-h6 Bd3-g6 =

7

Ralf Krätschmer, Jean-Christian Galli
6S1/6p1/7k/S7/5K2/B2B4/8/8
   ser-h=38                                            (5+2)   

1.Kh6-h5 2.Kh5-h4 3.Kh4-h3 4.Kh3-g2 5.Kg2-f2 6.Kf2-e1 7.Ke1-d2 8.Kd2-c3 9.Kc3-d4 10.Kd4-d5 11.Kd5-e6 12.Ke6-d7 13.Kd7-c7 14.Kc7-b6 15.Kb6*a5 16.Ka5-a4 17.Ka4*a3 18.Ka3-b4 19.Kb4-c5 20.Kc5-d6 21.Kd6-e7 22.Ke7-f8 23.Kf8-g8 24.Kg8*h8 25.Kh8-g8 26.Kg8-f7 27.Kf7-e6 28.Ke6-d5 29.Kd5-d4 30.Kd4-c3 31.Kc3-d2 32.Kd2-e1 33.Ke1-f2 34.Kf2-g2 35.Kg2-h3 36.Kh3-h4 37.Kh4-h5 38.Kh5-h6 Bd3-g6 =

8

Ion Murarasu, Arno Tüngler
4R2B/1B5p/5K1S/7S/8/k7/8/8
   ser-h=41                                            (6+2)   

1.Ka3-b4 2.Kb4-c5 3.Kc5-d6 4.Kd6-d7 5.Kd7*e8 6.Ke8-d7 7.Kd7-d6 8.Kd6-c5 9.Kc5-d4 10.Kd4-e3 11.Ke3-f2 12.Kf2-g1 13.Kg1-h2 14.Kh2-h3 15.Kh3-h4 16.Kh4*h5 17.Kh5*h6 18.Kh6-h5 19.Kh5-g4 20.Kg4-f4 21.Kf4-e3 22.Ke3-d4 23.Kd4-c5 24.Kc5-d6 25.Kd6-d7 26.Kd7-e8 27.Ke8-f8 28.Kf8-g8 29.Kg8*h8 30.Kh8-g8 31.Kg8-f8 32.Kf8-e8 33.Ke8-d7 34.Kd7-d6 35.Kd6-c5 36.Kc5-d4 37.Kd4-e3 38.Ke3-f4 39.Kf4-g4 40.Kg4-h5 41.Kh5-h6 Bb7-f3 =

9

Arno Tüngler
k3R2B/7p/5K1N/7N/1R6/8/8/7B
    ser-h=44                                            (7+2)    

1.Ka8-a7 2.Ka7-a6 3.Ka6-a5 4.Ka5*b4 5.Kb4-c5 6.Kc5-d6 7.Kd6-d7 8.Kd7*e8 9.Ke8-d7 10.Kd7-d6 11.Kd6-c5 12.Kc5-d4 13.Kd4-e3 14.Ke3-f2 15.Kf2-g1 16.Kg1-h2 17.Kh2-h3 18.Kh3-h4 19.Kh4*h5 20.Kh5*h6 21.Kh6-h5 22.Kh5-g4 23.Kg4-f4 24.Kf4-e3 25.Ke3-d4 26.Kd4-c5 27.Kc5-d6 28.Kd6-d7 29.Kd7-e8 30.Ke8-f8 31.Kf8-g8 32.Kg8*h8 33.Kh8-g8 34.Kg8-f8 35.Kf8-e8 36.Ke8-d7 37.Kd7-d6 38.Kd6-c5 39.Kc5-d4 40.Kd4-e3 41.Ke3-f4 42.Kf4-g4 43.Kg4-h5 44.Kh5-h6 Bh1-f3 =

10

Ion Murarasu, Arno Tüngler
k3R2B/1B5p/5K1N/7N/3P4/8/1R6/8
    ser-h=48                                            (8+2)    

1.Ka8-a7 2.Ka7-a6 3.Ka6-a5 4.Ka5-a4 5.Ka4-a3 6.Ka3*b2 7.Kb2-c3 8.Kc3*d4 9.Kd4-c5 10.Kc5-d6 11.Kd6-d7 12.Kd7*e8 13.Ke8-d7 14.Kd7-d6 15.Kd6-c5 16.Kc5-d4 17.Kd4-e3 18.Ke3-f2 19.Kf2-g1 20.Kg1-h2 21.Kh2-h3 22.Kh3-h4 23.Kh4*h5 24.Kh5*h6 25.Kh6-h5 26.Kh5-g4 27.Kg4-f4 28.Kf4-e3 29.Ke3-d4 30.Kd4-c5 31.Kc5-d6 32.Kd6-d7 33.Kd7-e8 34.Ke8-f8 35.Kf8-g8 36.Kg8*h8 37.Kh8-g8 38.Kg8-f8 39.Kf8-e8 40.Ke8-d7 41.Kd7-d6 42.Kd6-c5 43.Kc5-d4 44.Kd4-e3 45.Ke3-f4 46.Kf4-g4 47.Kg4-h5 48.Kh5-h6 Bb7-f3 =

11

Ion Murarasu, Arno Tüngler
k3R2B/7p/5K1S/8/3P4/3S4/6BP/1R6
   ser-h=50                                           (9+2)   

1.Ka8-a7 2.Ka7-a6 3.Ka6-a5 4.Ka5-a4 5.Ka4-a3 6.Ka3-a2 7.Ka2*b1 8.Kb1-c2 9.Kc2*d3 10.Kd3*d4 11.Kd4-c5 12.Kc5-d6 13.Kd6-d7 14.Kd7*e8 15.Ke8-d7 16.Kd7-d6 17.Kd6-c5 18.Kc5-d4 19.Kd4-e3 20.Ke3-f2 21.Kf2-g1 22.Kg1*h2 23.Kh2-g3 24.Kg3-h4 25.Kh4-h5 26.Kh5*h6 27.Kh6-h5 28.Kh5-g4 29.Kg4-f4 30.Kf4-e3 31.Ke3-d4 32.Kd4-c5 33.Kc5-d6 34.Kd6-d7 35.Kd7-e8 36.Ke8-f8 37.Kf8-g8 38.Kg8*h8 39.Kh8-g8 40.Kg8-f8 41.Kf8-e8 42.Ke8-d7 43.Kd7-d6 44.Kd6-c5 45.Kc5-d4 46.Kd4-e3 47.Ke3-f4 48.Kf4-g4 49.Kg4-h5 50.Kh5-h6 Bg2-f3 =

12

Ion Murarasu, Arno Tüngler
k3R2B/7p/5K1S/8/3P4/3S4/3P2BP/1R6
  ser-h=51                                          (10+2)   

1.Ka8-a7 2.Ka7-a6 3.Ka6-a5 4.Ka5-a4 5.Ka4-a3 6.Ka3-a2 7.Ka2*b1 8.Kb1-c2 9.Kc2*d2 10.Kd2*d3 11.Kd3*d4 12.Kd4-c5 13.Kc5-d6 14.Kd6-d7 15.Kd7*e8 16.Ke8-d7 17.Kd7-d6 18.Kd6-c5 19.Kc5-d4 20.Kd4-e3 21.Ke3-f2 22.Kf2-g1 23.Kg1*h2 24.Kh2-g3 25.Kg3-h4 26.Kh4-h5 27.Kh5*h6 28.Kh6-h5 29.Kh5-g4 30.Kg4-f4 31.Kf4-e3 32.Ke3-d4 33.Kd4-c5 34.Kc5-d6 35.Kd6-d7 36.Kd7-e8 37.Ke8-f8 38.Kf8-g8 39.Kg8*h8 40.Kh8-g8 41.Kg8-f8 42.Kf8-e8 43.Ke8-d7 44.Kd7-d6 45.Kd6-c5 46.Kc5-d4 47.Kd4-e3 48.Ke3-f4 49.Kf4-g4 50.Kg4-h5 51.Kh5-h6 Bg2-f3 =

13

Ion Murarasu, Arno Tüngler
k3R2B/7p/1R1P1K1S/P7/1P1S4/8/6BP/8
    ser-h=52                                          (11+2)    

1.Ka8-a7 2.Ka7-a6 3.Ka6*a5 4.Ka5-a4 5.Ka4-a3 6.Ka3-b2 7.Kb2-c3 8.Kc3*d4 9.Kd4-c5 10.Kc5*b6 11.Kb6-b5 12.Kb5*b4 13.Kb4-c5 14.Kc5*d6 15.Kd6-d7 16.Kd7*e8 17.Ke8-d7 18.Kd7-d6 19.Kd6-c5 20.Kc5-d4 21.Kd4-e3 22.Ke3-f2 23.Kf2-g1 24.Kg1*h2 25.Kh2-g3 26.Kg3-h4 27.Kh4-h5 28.Kh5*h6 29.Kh6-h5 30.Kh5-g4 31.Kg4-f4 32.Kf4-e3 33.Ke3-d4 34.Kd4-c5 35.Kc5-d6 36.Kd6-d7 37.Kd7-e8 38.Ke8-f8 39.Kf8-g8 40.Kg8*h8 41.Kh8-g8 42.Kg8-f8 43.Kf8-e8 44.Ke8-d7 45.Kd7-d6 46.Kd6-c5 47.Kc5-d4 48.Kd4-e3 49.Ke3-f4 50.Kf4-g4 51.Kg4-h5 52.Kh5-h6 Bg2-f3 =

14

Arno Tüngler
k3R2B/7p/N2P1K1N/8/1PPP1R2/8/6BP/8
     ser-h=53                                          (12+2)     

1.Ka8-a7 2.Ka7-b6 3.Kb6-a5 4.Ka5-a4 5.Ka4-b3 6.Kb3*c4 7.Kc4-b5 8.Kb5*a6 9.Ka6-b5 10.Kb5*b4 11.Kb4-c5 12.Kc5*d6 13.Kd6-d7 14.Kd7*e8 15.Ke8-d7 16.Kd7-d6 17.Kd6-c5 18.Kc5-c4 19.Kc4-d3 20.Kd3-e3 21.Ke3*f4 22.Kf4-e3 23.Ke3-f2 24.Kf2-g1 25.Kg1*h2 26.Kh2-g3 27.Kg3-h4 28.Kh4-h5 29.Kh5*h6 30.Kh6-h5 31.Kh5-g4 32.Kg4-f4 33.Kf4-e3 34.Ke3*d4 35.Kd4-c5 36.Kc5-d6 37.Kd6-d7 38.Kd7-e8 39.Ke8-f8 40.Kf8-g8 41.Kg8*h8 42.Kh8-g8 43.Kg8-f8 44.Kf8-e8 45.Ke8-d7 46.Kd7-d6 47.Kd6-c5 48.Kc5-d4 49.Kd4-e3 50.Ke3-f4 51.Kf4-g4 52.Kg4-h5 53.Kh5-h6 Bg2-f3 =

15

Arno Tüngler
k3R2B/7p/N2P1K1N/8/1PPP1R2/8/3P2BP/8 b - - 0 1
     ser-h=54                                          (13+2)     

1.Ka8-a7 2.Ka7-b6 3.Kb6-a5 4.Ka5-a4 5.Ka4-b3 6.Kb3*c4 7.Kc4-b5 8.Kb5*a6 9.Ka6-b5 10.Kb5*b4 11.Kb4-c5 12.Kc5*d6 13.Kd6-d7 14.Kd7*e8 15.Ke8-d7 16.Kd7-d6 17.Kd6-c5 18.Kc5-c4 19.Kc4-d3 20.Kd3*d2 21.Kd2-e3 22.Ke3*f4 23.Kf4-e3 24.Ke3-f2 25.Kf2-g1 26.Kg1*h2 27.Kh2-g3 28.Kg3-h4 29.Kh4-h5 30.Kh5*h6 31.Kh6-h5 32.Kh5-g4 33.Kg4-f4 34.Kf4-e3 35.Ke3*d4 36.Kd4-c5 37.Kc5-d6 38.Kd6-d7 39.Kd7-e8 40.Ke8-f8 41.Kf8-g8 42.Kg8*h8 43.Kh8-g8 44.Kg8-f8 45.Kf8-e8 46.Ke8-d7 47.Kd7-d6 48.Kd6-c5 49.Kc5-d4 50.Kd4-e3 51.Ke3-f4 52.Kf4-g4 53.Kg4-h5 54.Kh5-h6 Bg2-f3 =

16

Arno Tüngler
k3R2B/7p/N2P1K1N/8/1PPP1R2/8/P2P2BP/8
   ser-h=56                                          (14+2)   

1.Ka8-a7 2.Ka7-b6 3.Kb6-a5 4.Ka5-a4 5.Ka4-a3 6.Ka3*a2 7.Ka2-b3 8.Kb3*c4 9.Kc4-b5 10.Kb5*a6 11.Ka6-b5 12.Kb5*b4 13.Kb4-c5 14.Kc5*d6 15.Kd6-d7 16.Kd7*e8 17.Ke8-d7 18.Kd7-d6 19.Kd6-c5 20.Kc5-c4 21.Kc4-d3 22.Kd3*d2 23.Kd2-e3 24.Ke3*f4 25.Kf4-e3 26.Ke3-f2 27.Kf2-g1 28.Kg1*h2 29.Kh2-g3 30.Kg3-h4 31.Kh4-h5 32.Kh5*h6 33.Kh6-h5 34.Kh5-g4 35.Kg4-f4 36.Kf4-e3 37.Ke3*d4 38.Kd4-c5 39.Kc5-d6 40.Kd6-d7 41.Kd7-e8 42.Ke8-f8 43.Kf8-g8 44.Kg8*h8 45.Kh8-g8 46.Kg8-f8 47.Kf8-e8 48.Ke8-d7 49.Kd7-d6 50.Kd6-c5 51.Kc5-d4 52.Kd4-e3 53.Ke3-f4 54.Kf4-g4 55.Kg4-h5 56.Kh5-h6 Bg2-f3 =


Category C2
(initial position having at least one promoted piece, and better than equivalent category D2 ranking)

Number of pieces in total in the initial position

Compositions

7

Ion Murarasu, Ralf Krätschmer, Arno Tüngler, Cornel Pacurar, Jean-Christian Galli
B7/8/6p1/8/B7/5K2/8/kRB5
  ser-h=24                                          (5+2)  

1.Ka1-a2 2.Ka2-a3 3.Ka3*a4 4.Ka4-a5 5.Ka5-a6 6.Ka6-a7 7.Ka7*a8 8.Ka8-a7 9.Ka7-a6 10.Ka6-a5 11.Ka5-a4 12.Ka4-a3 13.Ka3-a2 14.Ka2*b1 15.Kb1-c2 16.Kc2-d1 17.Kd1-e1 18.Ke1-f1 19.Kf1-g1

a) 20.Kg1-h2 21.Kh2-h3 22.Kh3-h4 23.Kh4-h5 Bc1-g5 =
b) 20.Kg1-h1 21.Kh1-h2 22.Kh2-h3 23.Kh3-h4 24.Kh4-h5 Bc1-g5 =

10

Arno Tüngler, Ralf Krätschmer, Cornel Pacurar, Jean-Christian Galli
7B/Np6/1R6/P7/7B/2K5/8/5BRk
   ser-h=29                                            (8+2)   

1.Kh1-h2 2.Kh2-h3 3.Kh3*h4 4.Kh4-h5 5.Kh5-h6 6.Kh6-h7 7.Kh7*h8 8.Kh8-h7 9.Kh7-h6 10.Kh6-h5 11.Kh5-h4 12.Kh4-h3 13.Kh3-h2 14.Kh2*g1 15.Kg1-f2 16.Kf2-e1 17.Ke1-d1 18.Kd1-c1 19.Kc1-b1

a) 20.Kb1-a2 21.Ka2-a3 22.Ka3-a4 23.Ka4*a5 24.Ka5*b6 25.Kb6*a7 26.Ka7-b6 27.Kb6-a5 28.b7-b6 Bf1-b5 =
b) 20.Kb1-a1 21.Ka1-a2 22.Ka2-a3 23.Ka3-a4 24.Ka4*a5 25.Ka5*b6 26.Kb6*a7 27.Ka7-b6 28.Kb6-a5 29.b7-b6 Bf1-b5 =

14

Arno Tüngler
1R1B2Nn/5n2/k5KP/4N2P/6R1/8/B7/6RQ
  ser-h=30                                         (11+3)   

1.Ka6-a5 2.Ka5-a4 3.Ka4-a3 4.Ka3*a2 5.Ka2-a3 6.Ka3-a4 7.Ka4-a5 8.Ka5-a6 9.Ka6-a7 10.Ka7*b8

a) 11.Kb8-c8 12.Kc8*d8 13.Kd8-e8 14.Ke8-f8 15.Kf8*g8 16.Sf7-d6 17.Sd6-f5 18.Sf5*h6 19.Sh6*g4 20.Sh8-f7 21.Sg4*e5 22.Se5-f3 23.Sf3*g1 24.Sg1-e2 25.Se2-g3 26.Sg3*h5 27.Sh5-f6 28.Sf6-h7 29.Kg8-h8 Kg6*f7 =
b) 11.Kb8-b7 12.Kb7-c8 13.Kc8*d8 14.Kd8-e8 15.Ke8-f8 16.Kf8*g8 17.Sf7-d6 18.Sd6-f5 19.Sf5*h6 20.Sh6*g4 21.Sh8-f7 22.Sg4*e5 23.Se5-f3 24.Sf3*g1 25.Sg1-e2 26.Se2-g3 27.Sg3*h5 28.Sh5-f6 29.Sf6-h7 30.Kg8-h8 Kg6*f7 =

15

Arno Tüngler
1R1B2Nn/5n2/k5KP/R3N2P/6R1/8/B7/6RQ
  ser-h=31                                         (12+3)    

1.Ka5*a6 2.Ka6-a5 3.Ka5-a4 4.Ka4-a3 5.Ka3*a2 6.Ka2-a3 7.Ka3-a4 8.Ka4-a5 9.Ka5-a6 10.Ka6-a7 11.Ka7*b8

a) 12.Kb8-c8 13.Kc8*d8 14.Kd8-e8 15.Ke8-f8 16.Kf8*g8 17.Sf7-d6 18.Sd6-f5 19.Sf5*h6 20.Sh6*g4 21.Sh8-f7 22.Sg4*e5 23.Se5-f3 24.Sf3*g1 25.Sg1-e2 26.Se2-g3 27.Sg3*h5 28.Sh5-f6 29.Sf6-h7 30.Kg8-h8 Kg6*f7 =
b) 12.Kb8-b7 13.Kb7-c8 14.Kc8*d8 15.Kd8-e8 16.Ke8-f8 17.Kf8*g8 18.Sf7-d6 19.Sd6-f5 20.Sf5*h6 21.Sh6*g4 22.Sh8-f7 23.Sg4*e5 24.Se5-f3 25.Sf3*g1 26.Sg1-e2 27.Se2-g3 28.Sg3*h5 29.Sh5-f6 30.Sf6-h7 31.Kg8-h8 Kg6*f7 =

16

Arno Tüngler
kR1B2Nn/5n2/6KP/B3N2P/6R1/N7/B7/6RQ
  ser-h=32                                         (13+3)    

1.Ka8-a7 2.Ka7-a6 3.Ka6*a5 4.Ka5-a4 5.Ka4*a3 6.Ka3*a2 7.Ka2-a3 8.Ka3-a4 9.Ka4-a5 10.Ka5-a6 11.Ka6-a7 12.Ka7*b8

a) 13.Kb8-c8 14.Kc8*d8 15.Kd8-e8 16.Ke8-f8 17.Kf8*g8 18.Sf7-d6 19.Sd6-f5 20.Sf5*h6 21.Sh6*g4 22.Sh8-f7 23.Sg4*e5 24.Se5-f3 25.Sf3*g1 26.Sg1-e2 27.Se2-g3 28.Sg3*h5 29.Sh5-f6 30.Sf6-h7 31.Kg8-h8 Kg6*f7 =
b) 13.Kb8-b7 14.Kb7-c8 15.Kc8*d8 16.Kd8-e8 17.Ke8-f8 18.Kf8*g8 19.Sf7-d6 20.Sd6-f5 21.Sf5*h6 22.Sh6*g4 23.Sh8-f7 24.Sg4*e5 25.Se5-f3 26.Sf3*g1 27.Sg1-e2 28.Se2-g3 29.Sg3*h5 30.Sh5-f6 31.Sf6-h7 32.Kg8-h8 Kg6*f7 =

19

Arno Tüngler
kR1B2Nn/5n2/6KP/B3NP1B/P5P1/B7/P7/R5RQ
    ser-h=34                                         (16+3)    

1.Ka8-a7 2.Ka7-a6 3.Ka6*a5 4.Ka5*a4 5.Ka4*a3 6.Ka3*a2 7.Ka2*a1 8.Ka1-a2 9.Ka2-a3 10.Ka3-a4 11.Ka4-a5 12.Ka5-a6 13.Ka6-a7 14.Ka7*b8

a) 15.Kb8-c8 16.Kc8*d8 17.Kd8-e8 18.Ke8-f8 19.Kf8*g8 20.Sf7-d6 21.Sd6*f5 22.Sf5*h6 23.Sh6*g4 24.Sh8-f7 25.Sg4*e5 26.Se5-f3 27.Sf3*g1 28.Sg1-e2 29.Se2-g3 30.Sg3*h5 31.Sh5-f6 32.Sf6-h7 33.Kg8-h8 Kg6*f7 =
b) 15.Kb7 16.Kc8 17.Kxd8 18.Ke8 19.Kf8 20.Kxg8 21.Sd6 22.Sxf5 23.Sxh6 24.Sxg4 25.Shf7 26.Sgxe5 27.Sf3 28.Sxg1 29.Se2 30.Sg3 31.Sxh5 32.Sf6 33.Sh7 34.Kh8 Kxf7=


Category D2
(initial position having no promoted pieces)
 

Number of pieces in total in the initial position

Compositions

3

Arno Tüngler, Ralf Krätschmer, Ion Murarasu, Pascal Wassong, Cornel Pacurar, Ivan Skoba
8/8/2K5/5k2/8/6Q1/8/8
ser-h=9                                            (2+1) 

1.Kf5-e4 2.Ke4-d4 3.Kd4-c4 4.Kc4-b4

a) 5.Kb4-a5 6.Ka5-a6 7.Ka6-a7 8.Ka7-a8 Kc6-b6 =
b) 5.Kb4-a4 6.Ka4-a5 7.Ka5-a6 8.Ka6-a7 9.Ka7-a8 Kc6-b6 =

4

Arno Tüngler, Ralf Krätschmer, Ion Murarasu, Pascal Wassong, Cornel Pacurar, Ivan Skoba
5k2/8/2K5/8/4R3/6Q1/8/8
  ser-h=12                                            (3+1)  

1.Kf8-f7 2.Kf7-f6 3.Kf6-f5 4.Kf5*e4 5.Ke4-d4 6.Kd4-c4 7.Kc4-b4

a) 8.Kb4-a5 9.Ka5-a6 10.Ka6-a7 11.Ka7-a8 Kc6-b6 =
b) 8.Kb4-a4 9.Ka4-a5 10.Ka5-a6 11.Ka6-a7 12.Ka7-a8 Kc6-b6 =

5

Ralf Krätschmer, Arno Tüngler, Ion Murarasu, Cornel Pacurar, Jean-Christian Galli
k7/8/6p1/8/8/5K2/8/1RB5
  ser-h=17                                            (3+2)  

1.Ka8-a7 2.Ka7-a6 3.Ka6-a5 4.Ka5-a4 5.Ka4-a3 6.Ka3-a2 7.Ka2*b1 8.Kb1-c2 9.Kc2-d1 10.Kd1-e1 11.Ke1-f1 12.Kf1-g1

a) 13.Kg1-h2 14.Kh2-h3 15.Kh3-h4 16.Kh4-h5 Bc1-g5 =
b) 13.Kg1-h1 14.Kh1-h2 15.Kh2-h3 16.Kh3-h4 17.Kh4-h5 Bc1-g5 =

6

Ralf Krätschmer, Arno Tüngler, Ion Murarasu, Cornel Pacurar, Jean-Christian Galli
B7/8/6p1/8/8/k4K2/8/1RB5
  ser-h=22                                            (4+2)  

1.Ka3-a4 2.Ka4-a5 3.Ka5-a6 4.Ka6-a7 5.Ka7*a8 6.Ka8-a7 7.Ka7-a6 8.Ka6-a5 9.Ka5-a4 10.Ka4-a3 11.Ka3-a2 12.Ka2*b1 13.Kb1-c2 14.Kc2-d1 15.Kd1-e1 16.Ke1-f1 17.Kf1-g1

a) 18.Kg1-h2 19.Kh2-h3 20.Kh3-h4 21.Kh4-h5 Bc1-g5 =
b) 18.Kg1-h1 19.Kh1-h2 20.Kh2-h3 21.Kh3-h4 22.Kh4-h5 Bc1-g5 =

8

Arno Tüngler, Ralf Krätschmer, Cornel Pacurar, Jean-Christian Galli
7B/1p6/1N6/P7/8/2K4k/8/5BR1
  ser-h=25                                            (6+2)  

1.Kh3-h4 2.Kh4-h5 3.Kh5-h6 4.Kh6-h7 5.Kh7*h8 6.Kh8-h7 7.Kh7-h6 8.Kh6-h5 9.Kh5-h4 10.Kh4-h3 11.Kh3-h2 12.Kh2*g1 13.Kg1-f2 14.Kf2-e1 15.Ke1-d1 16.Kd1-c1 17.Kc1-b1 

a) 18.Kb1-a2 19.Ka2-a3 20.Ka3-a4 21.Ka4*a5 22.Ka5*b6 23.Kb6-a5 24.b7-b6 Bf1-b5 =
b) 18.Kb1-a1 19.Ka1-a2 20.Ka2-a3 21.Ka3-a4 22.Ka4*a5 23.Ka5*b6 24.Kb6-a5 25.b7-b6 Bf1-b5 =

9

Arno Tüngler, Ralf Krätschmer, Cornel Pacurar, Jean-Christian Galli
7B/Np6/1R6/P7/8/2K4k/8/5BR1
  ser-h=27                                            (7+2)  

1.Kh3-h4 2.Kh4-h5 3.Kh5-h6 4.Kh6-h7 5.Kh7*h8 6.Kh8-h7 7.Kh7-h6 8.Kh6-h5 9.Kh5-h4 10.Kh4-h3 11.Kh3-h2 12.Kh2*g1 13.Kg1-f2 14.Kf2-e1 15.Ke1-d1 16.Kd1-c1 17.Kc1-b1

a) 18.Kb1-a2 19.Ka2-a3 20.Ka3-a4 21.Ka4*a5 22.Ka5*b6 23.Kb6*a7 24.Ka7-b6 25.Kb6-a5 26.b7-b6 Bf1-b5 =
b) 18.Kb1-a1 19.Ka1-a2 20.Ka2-a3 21.Ka3-a4 22.Ka4*a5 23.Ka5*b6 24.Kb6*a7 25.Ka7-b6 26.Kb6-a5 27.b7-b6 Bf1-b5 =

15

Arno Tüngler
1R1B2Nn/5n2/k5KP/4NP1P/6P1/8/B7/6RQ
  ser-h=30                                         (12+3)  

1.Ka6-a5 2.Ka5-a4 3.Ka4-a3 4.Ka3*a2 5.Ka2-a3 6.Ka3-a4 7.Ka4-a5 8.Ka5-a6 9.Ka6-a7 10.Ka7*b8

a) 11.Kb8-c8 12.Kc8*d8 13.Kd8-e8 14.Ke8-f8 15.Kf8*g8 16.Sf7-d6 17.Sd6*f5 18.Sf5*h6 19.Sh6*g4 20.Sh8-f7 21.Sg4*e5 22.Se5-f3 23.Sf3*g1 24.Sg1-e2 25.Se2-g3 26.Sg3*h5 27.Sh5-f6 28.Sf6-h7 29.Kg8-h8 Kg6*f7 =
b) 11.Kb8-b7 12.Kb7-c8 13.Kc8*d8 14.Kd8-e8 15.Ke8-f8 16.Kf8*g8 17.Sf7-d6 18.Sd6*f5 19.Sf5*h6 20.Sh6*g4 21.Sh8-f7 22.Sg4*e5 23.Se5-f3 24.Sf3*g1 25.Sg1-e2 26.Se2-g3 27.Sg3*h5 28.Sh5-f6 29.Sf6-h7 30.Kg8-h8 Kg6*f7 =

bar01b.gif

Addendum

Computer generated solutions

Unbeknown to me, and to anyone else, François Labelle has been also participating "in the dark" for 2 months, using computer programs to find good (not perfect) solutions. He sent me his results, which are very interesting. I thank him for that.

First, here is the complete analysis up to 4 pieces:

B/3/12 (8 problems, 1 matrix)
B/4/18 (102 problems, ? matrices)
D/3/9 (8 problems, 1 matrix)
D/4/12 (8 problems, 1 matrix)

Thus we see that the participants found the best for those, and the only possible matrices for the B/3, D/3 and D/4. For the B/4, one interesting additional position is:
 

Category

Compositions

B2, 4 pieces

François Labelle
8/8/pK6/1k1R4/8/8/8/8
  ser-h=18                                            (2+2)  

1.Kb5-c4 2.a6-a5 3.a5-a4 4.a4-a3 5.a3-a2 6.a2-a1=B 7.Ba1-d4 8.Kc4-d3 9.Kd3-e4 10.Bd4-e5 11.Ke4-f5 12.Kf5-e6 13.Be5-d6 14.Ke6-d7 15.Kd7-c8 16.Kc8-b8 17.Kb8-a8 18.Bd6-b8 Rd5-d8 =

Double check, by the white king and rook, the last move must have been Rd6-d5 or Kc5-b6!


Another interesting position - puzzle like - is one resembling the D, but here the goal is to have a solution in x moves, but not in x+1! Interesting concept, maybe for a future tournament :-)
 

Category

Compositions

?, 4 pieces

François Labelle
6k1/2K5/2p2Q2/8/8/8/8/8
  ser-h=13                                            (2+2)  

1.c6-c5 2.c5-c4 3.c4-c3 4.c3-c2 5.c2-c1=S 6.Sc1-d3 7.Sd3-e5 8.Se5-f7 9.Kg8-f8 10.Kf8-e8 11.Sf7-d6 12.Sd6-c8 Kc7*c8 =

No solution in 13 moves.

Nice promotion to a knight!

?, 15 pieces

Cornel Pacurar
7B/Np6/1R6/P7/P6B/N1K5/R7/B1N2BRk
  ser-h=31                                   (13+2)  

1.Kh1-h2 2.Kh2-h3 3.Kh3*h4 4.Kh4-h5 5.Kh5-h6 6.Kh6-h7 7.Kh7*h8 8.Kh8-h7 9.Kh7-h6 10.Kh6-h5 11.Kh5-h4 12.Kh4-h3 13.Kh3-h2 14.Kh2*g1 15.Kg1-f2 16.Kf2-e1 17.Ke1-d1 18.Kd1*c1 19.Kc1-b1 20.Kb1*a2 21.Ka2*a1 22.Ka1-a2 23.Ka2*a3 24.Ka3*a4 25.Ka4*a5 26.Ka5*b6 27.Kb6*a7 28.Ka7-b6 29.Kb6-a5 30.b7-b6 Bf1-b5 =

No solution in 31 moves!

A more elaborated example from Cornel. Notice the similarity with one of the C1 entries... what one can do with just a switch of a knight :-)


Now for the best in the main categories, he found a better matrix for the A1 category, but not for B1, C1 and D1. Nevertheless, the C1 is also most interesting, and ends virtually at 2nd place.
 

Categories

Compositions

A1, 18 pieces

François Labelle
Rk6/5R2/2pK1N2/2Q5/N2P1B1B/1N6/NN6/1B1B1BB1
  ser-h=76                                          (16+2)  

1.Kb8*a8   2.Ka8-b8   3.Kb8-c8   4.Kc8-d8   5.Kd8-e8   6.Ke8*f7   7.Kf7-e8   8.Ke8-d8   9.Kd8-c8  10.Kc8-b7  11.Kb7-b6  12.Kb6-a5  13.Ka5-b4  14.Kb4*b3  15.Kb3*b2  16.Kb2*b1  17.Kb1*a2  18.Ka2-a3  19.Ka3-b4  20.Kb4-a5  21.Ka5-b6  22.Kb6-b7  23.Kb7-c8  24.Kc8-d8  25.Kd8-e8  26.Ke8-f7  27.Kf7-g6  28.Kg6-f5  29.Kf5*f4  30.Kf4-f5  31.Kf5-g6  32.Kg6-f7  33.Kf7-e8  34.Ke8-d8  35.Kd8-c8  36.Kc8-b7  37.Kb7-b6  38.Kb6-a5  39.Ka5-b4  40.Kb4-c3  41.Kc3-d2  42.Kd2*d1  43.Kd1-c2  44.Kc2-b3  45.Kb3*a4  46.Ka4-a5  47.Ka5-b6  48.Kb6-b7  49.Kb7-c8  50.Kc8-d8  51.Kd8-e8  52.Ke8-f7  53.Kf7-g6  54.Kg6-h5  55.Kh5*h4  56.Kh4-g5  57.Kg5*f6  58.Kf6-f7  59.Kf7-e8  60.Ke8-d8  61.Kd8-c8  62.Kc8-b7  63.Kb7-b6  64.Kb6-a5  65.Ka5-b4  66.Kb4-c3  67.Kc3-d2  68.Kd2-e1  69.Ke1*f1  70.Kf1*g1  71.Kg1-f2  72.Kf2-e3  73.Ke3*d4  74.Kd4-c4  75.Kc4-b5  76.Kb5-a6 Kd6-c7 =

Quite an incredible matrix! Very nice and elegant... a kind of "perfectly positioned" bishop batteries formation. The final stalemate is quite elegant too. Interesting the series of 4 consecutive captures from moves 14 to 17...

A2, 17 pieces

François Labelle
k7/5R2/2pK1N2/2Q5/N2P1B1B/1N6/NN6/1B1B1BB1
  ser-h=75                                          (15+2)  

1.Ka8-b8 2.Kb8-c8 3.Kc8-d8 4.Kd8-e8 5.Ke8*f7 6.Kf7-e8 7.Ke8-d8 8.Kd8-c8 9.Kc8-b7 10.Kb7-b6 11.Kb6-a5 12.Ka5-b4 13.Kb4*b3 14.Kb3*b2 15.Kb2*b1 16.Kb1*a2 17.Ka2-a3 18.Ka3-b4 19.Kb4-a5 20.Ka5-b6 21.Kb6-b7 22.Kb7-c8 23.Kc8-d8 24.Kd8-e8 25.Ke8-f7 26.Kf7-g6 27.Kg6-f5 28.Kf5*f4 29.Kf4-f5 30.Kf5-g6 31.Kg6-f7 32.Kf7-e8 33.Ke8-d8 34.Kd8-c8 35.Kc8-b7 36.Kb7-b6 37.Kb6-a5 38.Ka5-b4 39.Kb4-c3 40.Kc3-d2 41.Kd2*d1 42.Kd1-c2 43.Kc2-b3 44.Kb3*a4 45.Ka4-a5 46.Ka5-b6 47.Kb6-b7 48.Kb7-c8 49.Kc8-d8 50.Kd8-e8 51.Ke8-f7 52.Kf7-g6 53.Kg6-h5 54.Kh5*h4 55.Kh4-g5 56.Kg5*f6 57.Kf6-f7 58.Kf7-e8 59.Ke8-d8 60.Kd8-c8 61.Kc8-b7 62.Kb7-b6 63.Kb6-a5 64.Ka5-b4 65.Kb4-c3 66.Kc3-d2 67.Kd2-e1 68.Ke1*f1 69.Kf1*g1 70.Kg1-f2 71.Kf2-e3 72.Ke3*d4 73.Kd4-c4 74.Kc4-b5 75.Kb5-a6 Kd6-c7 =

A2, 16 pieces

François Labelle
3B3B/8/k1pK1NP1/2Q5/N2P1B1B/8/B7/3B1BB1
  ser-h=72                                          (14+2)   

1.Ka6-b7   2.Kb7-c8   3.Kc8*d8   4.Kd8-c8   5.Kc8-b7   6.Kb7-b6   7.Kb6-a5   8.Ka5-b4   9.Kb4-a3  10.Ka3*a2  11.Ka2-a3  12.Ka3-b4  13.Kb4-a5  14.Ka5-b6  15.Kb6-b7  16.Kb7-c8  17.Kc8-d8  18.Kd8-e8  19.Ke8-f8  20.Kf8-g8  21.Kg8*h8  22.Kh8-g7  23.Kg7*g6  24.Kg6-f5  25.Kf5*f4  26.Kf4-f5  27.Kf5-g6  28.Kg6-f7  29.Kf7-e8  30.Ke8-d8  31.Kd8-c8  32.Kc8-b7  33.Kb7-b6  34.Kb6-a5  35.Ka5-b4  36.Kb4-c3  37.Kc3-d2  38.Kd2*d1  39.Kd1-c2  40.Kc2-b3  41.Kb3*a4  42.Ka4-a5  43.Ka5-b6  44.Kb6-b7  45.Kb7-c8  46.Kc8-d8  47.Kd8-e8  48.Ke8-f7  49.Kf7-g6  50.Kg6-h5  51.Kh5*h4  52.Kh4-g5  53.Kg5*f6  54.Kf6-f7  55.Kf7-e8  56.Ke8-d8  57.Kd8-c8  58.Kc8-b7  59.Kb7-b6  60.Kb6-a5  61.Ka5-b4  62.Kb4-c3  63.Kc3-d2  64.Kd2-e1  65.Ke1*f1  66.Kf1*g1  67.Kg1-f2  68.Kf2-e3  69.Ke3*d4  70.Kd4-c4  71.Kc4-b5  72.Kb5-a6 Kd6-c7 =

A2, 15 pieces

François Labelle
5k1B/8/2pK1NP1/2Q5/N2P1B1B/8/B7/3B1BB1
  ser-h=71                                          (13+2)   

1.Kf8-e8 2.Ke8-d8 3.Kd8-c8 4.Kc8-b7 5.Kb7-b6 6.Kb6-a5 7.Ka5-b4 8.Kb4-a3 9.Ka3*a2 10.Ka2-a3 11.Ka3-b4 12.Kb4-a5 13.Ka5-b6 14.Kb6-b7 15.Kb7-c8 16.Kc8-d8 17.Kd8-e8 18.Ke8-f8 19.Kf8-g8 20.Kg8*h8 21.Kh8-g7 22.Kg7*g6 23.Kg6-f5 24.Kf5*f4 25.Kf4-f5 26.Kf5-g6 27.Kg6-f7 28.Kf7-e8 29.Ke8-d8 30.Kd8-c8 31.Kc8-b7 32.Kb7-b6 33.Kb6-a5 34.Ka5-b4 35.Kb4-c3 36.Kc3-d2 37.Kd2*d1 38.Kd1-c2 39.Kc2-b3 40.Kb3*a4 41.Ka4-a5 42.Ka5-b6 43.Kb6-b7 44.Kb7-c8 45.Kc8-d8 46.Kd8-e8 47.Ke8-f7 48.Kf7-g6 49.Kg6-h5 50.Kh5*h4 51.Kh4-g5 52.Kg5*f6 53.Kf6-f7 54.Kf7-e8 55.Ke8-d8 56.Kd8-c8 57.Kc8-b7 58.Kb7-b6 59.Kb6-a5 60.Ka5-b4 61.Kb4-c3 62.Kc3-d2 63.Kd2-e1 64.Ke1*f1 65.Kf1*g1 66.Kg1-f2 67.Kf2-e3 68.Ke3*d4 69.Kd4-c4 70.Kc4-b5 71.Kb5-a6 Kd6-c7 =

B1, 16 pieces

François Labelle
1R1k4/N1P4R/2P1P3/2P5/4PP2/P7/2K1BP2/B3N3
  ser-h=44                                          (15+1)   

1.Kd8-e8 2.Ke8-f8 3.Kf8-g8 4.Kg8*h7 5.Kh7-g8 6.Kg8-f8 7.Kf8-e7 8.Ke7*e6 9.Ke6-d7 10.Kd7*c7 11.Kc7*b8 12.Kb8*a7 13.Ka7-b8 14.Kb8-c7 15.Kc7*c6 16.Kc6*c5 17.Kc5-b6 18.Kb6-a5 19.Ka5-a4 20.Ka4*a3 21.Ka3-a2 22.Ka2*a1 23.Ka1-a2 24.Ka2-a3 25.Ka3-b4 26.Kb4-c5 27.Kc5-d4 28.Kd4*e4 29.Ke4*f4 30.Kf4-g5 31.Kg5-h4 32.Kh4-h3 33.Kh3-h2 34.Kh2-g1 35.Kg1*f2 36.Kf2*e1 37.Ke1-f2 38.Kf2-e3 39.Ke3-d4 40.Kd4-c5 41.Kc5-b4 42.Kb4-a3 43.Ka3-a2 44.Ka2-a1 Be2-c4 =

Interesting position, with the knight at e1 well protected by its pieces, thus the king must capture the bishop at a1 beforehand...

C1, 18 pieces

François Labelle
B4k1R/4N3/1P1N3B/N5N1/B2PPR2/P3p3/B1K1Q3/8
  ser-h=32                                          (16+2)   

1.Kf8-g7 2.Kg7*h8 3.Kh8-h7 4.Kh7*h6 5.Kh6*g5 6.Kg5*f4 7.Kf4-g5 8.Kg5-f6 9.Kf6*e7 10.Ke7*d6 11.Kd6-e7 12.Ke7-d8 13.Kd8-c8 14.Kc8-b8 15.Kb8*a8 16.Ka8-b8 17.Kb8-c8 18.Kc8-d8 19.Kd8-e7 20.Ke7-f6

a) 21.Kf6-g5 22.Kg5-f4 23.Kf4*e4 24.Ke4*d4 25.Kd4-c5 26.Kc5*b6 27.Kb6*a5 28.Ka5*a4 29.Ka4*a3 30.Ka3*a2 31.Ka2-a1 Kc2-c1 =
b) 21.Kf6-g6 22.Kg6-g5 23.Kg5-f4 24.Kf4*e4 25.Ke4*d4 26.Kd4-c5 27.Kc5*b6 28.Kb6*a5 29.Ka5*a4 30.Ka4*a3 31.Ka3*a2 32.Ka2-a1 Kc2-c1 =

A beautiful matrix! Quite unbelievable too, the king marching right into the center, and still manages to have a unique (to one variation) route! The queen at e2 is quite strong and important in this matrix. Nice final position...

D1, 12 pieces

François Labelle
k7/7R/8/p6N/P7/2K3P1/R5B1/2B3N1
  ser-h=24                                          (10+2)   

1.Ka8-b8 2.Kb8-c8 3.Kc8-d8 4.Kd8-e8 5.Ke8-f8 6.Kf8-g8 7.Kg8*h7 8.Kh7-g6 9.Kg6*h5 10.Kh5-g4 11.Kg4*g3 12.Kg3-h2

a) 13.Kh2*g1 14.Kg1-f1 15.Kf1-e1 16.Ke1-d1 17.Kd1*c1 18.Kc1-b1 19.Kb1*a2 20.Ka2-a3 21.Ka3*a4 22.Ka4-a3 23.a5-a4 Bg2-d5 =
b) 13.Kh2-h1 14.Kh1*g1 15.Kg1-f1 16.Kf1-e1 17.Ke1-d1 18.Kd1*c1 19.Kc1-b1 20.Kb1*a2 21.Ka2-a3 22.Ka3*a4 23.Ka4-a3 24.a5-a4 Bg2-d5 =

Nice matrix, with an idea similar to the 2nd prize of D1.