Author: John Merlino
Date: 19:12:55 05/08/04
Go up one level in this thread
On May 08, 2004 at 17:35:51, Ed Trice wrote:
>Hello everyone,
>
>I am in the process of submitting a paper to the ICGA Journal for publishing,
>with a May 20 deadline. One of the early reviewers of the paper suggested that I
>suppliment the material with some positions, and solutions, for longest wins in
>the follow chess endings:
>
>Q + P vs. Q (disregarding the 50 move rule)
>R + P vs. R (disregarding the 50 move rule)
>B + P vs. B (disregarding the 50 move rule)
>N + P vs. N (disregarding the 50 move rule)
>
>I would need the longest win for white, the side with the pawn, to move and win.
>I would need the move list as well.
>
>If anyone has this information and would be interested in sharing, I would be
>happy to mention your name in the Acknowledgements section of the paper.
>
>If you prefer to email this to me, I am at GothicChessInfo@aol.com.
>
>Thanks in advance.
>
>--Ed
Ok, assuming I know how to use FEG (which I cannot guarantee), this is what I
get using Johan de Koning's EGTBs and tool:
KQPKQ: There are five positions that give Mate in 124 for White. This is one of
them.
[D]4Q3/8/7q/8/8/8/k3P3/2K5 w - - 0 1
[Event ""]
[Site ""]
[Date "2004.5.8"]
[Round ""]
[White "Chessmaster"]
[Black "Chessmaster"]
[TimeControl "?"]
[Result "1-0"]
[Setup "1"]
[FEN "4Q3/8/7q/8/8/8/k3P3/2K5 w - - 0 1"]
1.Kc2 Qh7+ 2.Kc3 Qc7+ 3.Kd4 Qb6+ 4.Kd5 Qb3+ 5.Ke4 Qd1 6.e3 Qe2 7.Kf4
Qf2+ 8.Kg5 Qg3+ 9.Kf6 Qf2+ 10.Kg7 Qb2+ 11.Kh7 Qb7+ 12.Kh6 Qb6+ 13.Kg5
Kb3 14.Kf5 Qc5+ 15.Kf6 Kc2 16.Qe4+ Kc1 17.Kf7 Qh5+ 18.Ke7 Qc5+ 19.Kd7
Qa7+ 20.Ke8 Qb8+ 21.Kf7 Qc7+ 22.Qe7 Qc4+ 23.Qe6 Qc7+ 24.Kf6 Qc3+ 25.Qe5
Qc6+ 26.Ke7 Qb7+ 27.Kd8 Qa8+ 28.Kd7 Qa4+ 29.Ke7 Qb4+ 30.Ke6 Qc4+ 31.Qd5
Qc8+ 32.Kf7 Qc7+ 33.Kf6 Qc3+ 34.Qd4 Qc8 35.Kg7 Qb7+ 36.Kh6 Qc6+ 37.Kg5
Qg2+ 38.Kf4 Qf1+ 39.Ke4 Qg2+ 40.Ke5 Qg5+ 41.Ke6 Qg8+ 42.Kd7 Qf7+ 43.Kc6
Qe8+ 44.Kc7 Qf7+ 45.Kb6 Qb3+ 46.Kc6 Qe6+ 47.Kc5 Qc8+ 48.Kb4 Qb7+ 49.Kc3
Qc6+ 50.Qc4 Qf3 51.Kd4+ Kd2 52.Qd3+ Ke1 53.e4 Qf6+ 54.Kc5 Qe7+ 55.Kb6
Qe6+ 56.Ka5 Qa2+ 57.Kb5 Qb2+ 58.Kc6 Qe5 59.Qd5 Qh8 60.Qf5 Qe8+ 61.Kc5
Qe7+ 62.Kc4 Qc7+ 63.Qc5 Qf4 64.Qd4 Qf7+ 65.Qd5 Qf1+ 66.Kb4 Qf3 67.Ka4
Ke2 68.Qc4+ Kd2 69.Qd4+ Ke2 70.e5 Qc6+ 71.Ka5 Qa8+ 72.Kb5 Qb7+ 73.Qb6
Qd5+ 74.Qc5 Qb3+ 75.Kc6 Qe6+ 76.Kc7 Qf7+ 77.Kd6 Qf8+ 78.Kd5 Qf5 79.Qc4+
Ke3 80.Qd4+ Kf3 81.Kd6 Qf8+ 82.Kc7 Qe7+ 83.Kb6 Qe6+ 84.Qd6 Qb3+ 85.Kc7
Qf7+ 86.Kd8 Qg8+ 87.Ke7 Qh7+ 88.Ke8 Qh5+ 89.Kd8 Qh8+ 90.Kc7 Qh7+ 91.Qd7
Qh2 92.Qd3+ Kg4 93.Qd6 Qc2+ 94.Kd8 Qf5 95.e6 Qa5+ 96.Kd7 Qa4+ 97.Ke7 Kh5
98.Qe5+ Kg6 99.Qg3+ Kf5 100.Qd3+ Kg5 101.Qd8 Qb3 102.Kf7+ Kg4 103.Qf6
Kh3 104.Kg6 Qg3+ 105.Qg5 Qb8 106.Qf5+ Kh2 107.e7 Qe8+ 108.Kf6 Qc6+
109.Kg7 Qc3+ 110.Kh7 Qc7 111.Qf7 Qc2+ 112.Kg8 Qg2+ 113.Kf8 Qh3 114.Qf4+
Qg3 115.Qxg3+ Kxg3 116.e8=Q Kf2 117.Qe7 Kg3 118.Qe2 Kf4 119.Qd3 Kg5
120.Qe4 Kf6 121.Qd5 Kg6 122.Qe5 Kh6 123.Kf7 Kh7 124.Qg7# 1-0
The other four are:
6Q2/8/q7/8/8/3P4/8/3K3k w
4q3/K7/8/8/8/4P3/6Q1/k7 w
4q3/K7/8/8/8/4P2Q/8/k7 w
8/K4Q2/8/6q1/8/4P3/8/k7 w
KRPKR: There are four positions where BLACK has the move and WHITE mates in 74
moves. Here is one:
[D]8/8/8/8/2k2R2/5K2/6P1/4r3 b - - 0 1
[Event ""]
[Site ""]
[Date "2004.5.8"]
[Round ""]
[White "Chessmaster"]
[Black "Chessmaster"]
[TimeControl "?"]
[Result "1-0"]
[Setup "1"]
[FEN "8/8/8/8/2k2R2/5K2/6P1/4r3 b - - 0 1"]
1...Kd5 2.Rf5+ Ke6 3.Kg4 Rg1 4.Rf2 Rc1 5.Kg5 Rc5+ 6.Kg6 Rc8 7.Re2+ Kd5
8.Kf7 Rc4 9.Kf6 Rf4+ 10.Kg5 Rf8 11.Ra2 Rg8+ 12.Kf6 Kd6 13.Ra6+ Kc7
14.Ra7+ Kd6 15.Ra2 Kd7 16.Kf7 Rg5 17.Rd2+ Kc7 18.Ke6 Rg8 19.Kf5 Rf8+
20.Ke4 Rg8 21.Kf3 Rf8+ 22.Ke2 Rg8 23.Kf2 Rf8+ 24.Kg1 Rg8 25.Rd3 Re8
26.Kf2 Rf8+ 27.Ke3 Rg8 28.Kf3 Rf8+ 29.Ke4 Re8+ 30.Kf5 Rf8+ 31.Ke6 Rg8
32.g3 Rg5 33.Re3 Kc8 34.Kf6 Rg8 35.Kf5 Rf8+ 36.Kg5 Rg8+ 37.Kf6 Rg4
38.Re8+ Kd7 39.Re7+ Kd8 40.Rg7 Re4 41.g4 Rf4+ 42.Kg5 Re4 43.Rf7 Ke8
44.Rf6 Rd4 45.Kh5 Rd3 46.g5 Rh3+ 47.Kg6 Rg3 48.Rf2 Rg4 49.Kh6 Rh4+
50.Kg7 Rg4 51.g6 Ke7 52.Re2+ Kd6 53.Kf6 Rf4+ 54.Kg5 Rf3 55.Re4 Rf8 56.g7
Rb8 57.Rh4 Ke7 58.Rh8 Rb5+ 59.Kf4 Rb4+ 60.Ke3 Rb3+ 61.Kd4 Rb4+ 62.Kc5
Rg4 63.g8=Q Rxg8 64.Rxg8 Kf6 65.Kd5 Kf7 66.Rg5 Kf6 67.Re5 Kf7 68.Re6 Kf8
69.Kd6 Kf7 70.Kd7 Kg8 71.Ke8 Kg7 72.Ke7 Kh8 73.Rg6 Kh7 74.Kf7 Kh8
75.Rh6# 1-0
The other three positions are:
8/8/8/8/3k1R2/5K2/6P1/4r3 b
8/8/k3R3/8/8/8/6Pr/4K3 b
8/1k6/4R3/8/8/7r/6P1/4K3 b
KBPKP: There are 14 positions in which White mates in 51 moves. Here is one:
[D]8/8/6B1/8/2P5/8/2K5/k4b2 w - - 0 1
[Event ""]
[Site ""]
[Date "2004.5.8"]
[Round ""]
[White "Chessmaster"]
[Black "Chessmaster"]
[TimeControl "?"]
[Result "1-0"]
[Setup "1"]
[FEN "8/8/6B1/8/2P5/8/2K5/k4b2 w - - 0 1"]
1.c5 Bg2 2.Kb3 Bd5+ 3.Ka3 Bc6 4.Bh7 Bd5 5.Bd3 Bc6 6.Bc4 Bb7 7.Be6 Ba8
8.Kb3 Bc6 9.Bf7 Bd7 10.Bc4 Bc6 11.Be6 Be8 12.Bd5 Bd7 13.Kc3 Be8 14.Bb7
Bh5 15.Bc8 Bf3 16.Be6 Bc6 17.Kd4 Kb2 18.Ke5 Bb7 19.Bd5 Ba6 20.c6 Ka3
21.Be4 Kb4 22.Kd6 Ka5 23.Kc5 Bc8 24.Bd3 Be6 25.c7 Bg4 26.Bc4 Bd7 27.Kd6
Bc8 28.Kc6 Kb4 29.Bb5 Ka5 30.Bd3 Kb4 31.Kb6 Bd7 32.Be4 Bc8 33.Bb7 Bd7
34.Ka7 Be6 35.Kb8 Kc5 36.Bc8 Bc4 37.Bd7 Ba6 38.Bf5 Kd6 39.Be4 Kc5 40.Bb7
Bb5 41.c8=Q+ Kd4 42.Ba6 Bxa6 43.Qxa6 Ke5 44.Qc4 Kf6 45.Qd5 Kg7 46.Qg5+
Kh8 47.Kc7 Kh7 48.Kd8 Kh8 49.Ke7 Kh7 50.Kf8 Kh8 51.Qh6# 1-0
If you want the other 13, I can give them to you.
<Aside>
Hey Johan, how about having FEG generate FEN instead of:
. . . . . . . .
. . . . . . . .
. . . . . . B .
. . . . . . . .
. . P . . . . .
. . . . . . . .
. . K . . . . .
k . . . . b . . w....
</aside>
KNPKN: There are 12 positions in which BLACK is to move and WHITE mates in 97
moves. Here is one (which is very amusing, because it REQUIRES White to promote
to a Bishop -- otherwise the game is drawn with EGTBs -- but the game is
eventually drawn anyway because of the 50-move rule!):
[D]k7/3P4/K7/8/3n4/8/3N4/8 b - - 0 1
[Event ""]
[Site ""]
[Date "2004.5.8"]
[Round ""]
[White "Chessmaster"]
[Black "Chessmaster"]
[TimeControl "?"]
[Result "1/2-1/2"]
[Setup "1"]
[FEN "k7/3P4/K7/8/3n4/8/3N4/8 b - - 0 1"]
1...Nc6 2.Kb6 Nb8 3.d8=B Nd7+ 4.Kc7 Nc5 5.Kc6 Nd3 6.Ne4 Ne5+ 7.Kc7 Nd3
8.Bf6 Ka7 9.Kc6 Nb4+ 10.Kb5 Nd5 11.Bd8 Ka8 12.Nd6 Kb8 13.Kc5 Nf4 14.Kc6
Nd3 15.Bf6 Ka7 16.Kb5 Ne1 17.Bd4+ Kb8 18.Kb6 Nd3 19.Bf6 Nf4 20.Be5 Ng6
21.Bh2 Ne7 22.Nf5+ Ka8 23.Ng7 Nf5 24.Ne6 Ne3 25.Ka6 Nc2 26.Bd6 Nd4
27.Nc5 Nf5 28.Bc7 Ne3 29.Na4 Nd5 30.Bd6 Nc7+ 31.Kb6 Nd5+ 32.Kc6 Ne3
33.Bc5 Nf5 34.Kc7 Nh4 35.Nc3 Ng2 36.Kc6 Nh4 37.Nd5 Kb8 38.Ne7 Nf3 39.Be3
Ne5+ 40.Kd5 Nd7 41.Kd6 Nf6 42.Bd4 Nh7 43.Kc6 Ng5 44.Kb6 Ka8 45.Be5 Nf3
46.Bf4 Ne1 47.Nd5 Ng2 48.Bg5 Ne1 49.Bh4 Nd3 50.Bg3 Nb4 51.Nc7+ Kb8
52.Kc5 Nc2 53.Nb5+ {Note that the game is drawn here because of the 50-move
rule} 53...Kb7 54.Nd6+ Ka6 55.Nc4 Kb7 56.Bf4 Ne1 57.Ne5 Ng2 58.Bg5 Kc8 59.Nd3
Kb7 60.Kd4 Ka6 61.Ne5 Kb5 62.Bd2 Ka4 63.Nf3 Kb3 64.Kd3 Kb2 65.Bg5 Ka3
66.Ke2 Kb4 67.Kf1 Kc5 68.Nd2 Nh4 69.Bxh4 Kd6 70.Ke2 Kd5 71.Bf2 Ke6
72.Nc4 Kd5 73.Kd3 Ke6 74.Bg3 Kd5 75.Bd6 Kc6 76.Ke4 Kb7 77.Kd5 Ka7 78.Kc6
Ka8 79.Nb6+ Ka7 80.Bc7 Ka6 81.Bb8 Ka5 82.Nd5 Ka4 83.Be5 Kb3 84.Ne3 Kb4
85.Kb6 Ka4 86.Bc3 Kb3 87.Ba5 Ka4 88.Bd2 Kb3 89.Ka5 Ka3 90.Bc3 Kb3 91.Bb4
Ka2 92.Ka4 Kb2 93.Bd2 Ka1 94.Kb3 Kb1 95.Nc4 Ka1 96.Be3 Kb1 97.Na3+ Ka1
98.Bd4# 1-0
If you want the other 11 positions, let me know.
jm
p.s. Hope I did that right.... :-/
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