a test position that I composed

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Dann Corbit
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Joined: Wed Mar 08, 2006 8:57 pm
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Re: a test position that I composed

Post by Dann Corbit »

Analysis with bleeding edge stockfish with mobility tweak and 6 man Syzygy files :

Code: Select all

Searching: 2k5/1pP5/p7/PP6/5B2/8/8/K4n2 w - - 0 1
infinite: 0 time: 0 increment: 0 moves to go: 0

40   +8.29   00:00   3687K  b6 Kd7 Ka2 Kc8 Kb3 Kd7 Kc4 Kc8 Kd3 Kd7 Ke2 Kc8 Kxf1 Kd7 Ke1 Kc8 Kd2 Kd7 Kc3 Kc8 Kc4 Kd7 Be3 Kc8 Kd3 Kd7 Bh6 Kc8 Bd2 Kd7 Be3 Kc8 Kc4 Kd7 Bf4 Kc8 Kc5 Kd7 Bh2 Kc8 Kd5 Kd7 Ke4 Kc8 Kf3 Kd7 Bg1 Kc8 Ke2 Kd7 Kd1 Kc8 Kc2 Kd7 Kb2 Kc8 Ka2 Kd7 Bf2 Kc8 Bg3 Kd7 Kb2 Kc8 Kb3 Kd7 Kc3 Kc8 Kb4 Kd7 Bh2 Kc8 Kb3 Kd7 
41   +8.29   00:00   4007K  b6 Kd7 Ka2 Kc8 Kb3 Kd7 Kc4 Kc8 Kd3 Kd7 Ke2 Kc8 Kxf1 Kd7 Ke1 Kc8 Kd2 Kd7 Kc3 Kc8 Kc4 Kd7 Be3 Kc8 Kd3 Kd7 Bh6 Kc8 Bd2 Kd7 Be3 Kc8 Kc4 Kd7 Bf4 Kc8 Kc5 Kd7 Bh2 Kc8 Kd5 Kd7 Ke4 Kc8 Kf3 Kd7 Bg1 Kc8 Ke2 Kd7 Ke1 Kc8 Kd2 Kd7 Ke2 Kc8 Bf2 Kd7 Kf1 Kc8 Bc5 Kd7 Be7 Kc8 Bg5 Kd7 Ke2 Kc8 Bc1 
42   +8.29   00:00   4436K  b6 Kd7 Ka2 Kc8 Kb3 Kd7 Kc4 Kc8 Kd3 Kd7 Ke2 Kc8 Kxf1 Kd7 Ke1 Kc8 Kd2 Kd7 Kc3 Kc8 Kc4 Kd7 Be3 Kc8 Kd3 Kd7 Bh6 Kc8 Bd2 Kd7 Be3 Kc8 Kc4 Kd7 Bf4 Kc8 Kc5 Kd7 Bh2 Kc8 Kd5 Kd7 Ke4 Kc8 Kf3 Kd7 Bg1 Kc8 Ke2 Kd7 Ke1 Kc8 Kd2 Kd7 Ke2 Kc8 Bh2 Kd7 Bd6 Kc8 Kd3 Kd7 Kc3 Kc8 Kb3 Kd7 Bg3 Kc8 Be1 Kd7 
43   +8.29   00:00   4712K  b6 Kd7 Ka2 Kc8 Kb3 Kd7 Kc4 Kc8 Kd3 Kd7 Ke2 Kc8 Kxf1 Kd7 Ke1 Kc8 Kd2 Kd7 Kc3 Kc8 Kc4 Kd7 Be3 Kc8 Kd3 Kd7 Bh6 Kc8 Bd2 Kd7 Be3 Kc8 Kc4 Kd7 Bf4 Kc8 Kc5 Kd7 Bh2 Kc8 Kd5 Kd7 Ke4 Kc8 Kf3 Kd7 Bg1 Kc8 Ke2 Kd7 Ke1 Kc8 Kd2 Kd7 Ke2 Kc8 Bh2 Kd7 Ke1 Kc8 Kd2 Kd7 Kc3 Kc8 Kb2 Kd7 Ka2 Kc8 Bf4 Kd7 Bg3 Kc8 Be1 Kd7 Bh4 Kc8 Bd8 Kd7 Be7 
44   +8.29   00:00   5328K  b6 Kd7 Ka2 Kc8 Kb3 Kd7 Kc4 Kc8 Kd3 Kd7 Ke2 Kc8 Kxf1 Kd7 Ke1 Kc8 Kd2 Kd7 Kc3 Kc8 Kc4 Kd7 Be3 Kc8 Kd3 Kd7 Bh6 Kc8 Bd2 Kd7 Be3 Kc8 Kc4 Kd7 Bf4 Kc8 Kc5 Kd7 Bh2 Kc8 Kd5 Kd7 Ke4 Kc8 Kf3 Kd7 Bg1 Kc8 Ke2 Kd7 Ke1 Kc8 Kd2 Kd7 Ke2 Kc8 Bh2 Kd7 Ke1 Kc8 Kd2 Kd7 Kc3 Kc8 Kb2 Kd7 Ka2 Kc8 Bf4 Kd7 Bd2 Kc8 Kb2 Kd7 Ka1 Kc8 
45     #71   00:01  19251K  Ka2 Kd7 Kb3 Kc8 Kc4 Kd7 bxa6 bxa6 Kd3 Ke7 c8=Q Nd2 Kxd2 Kf7 Qxa6 Ke7 Qc8 Kf6 a6 Kf7 
46     #27   00:22 306547K  Ka2 axb5 Kb3 b4 Kxb4 Nd2 Bxd2 Kxc7 Bf4+ Kc6 Be3 Kc7 Ba7 Kd6 Kc4 Kc6 Bb6 Kd7 Kc5 Kc8 Ba7 Kc7 Kb5 Kd7 Be3 Kc8 Bf4 Kd8 Kb6 Kc8 Bh2 Kd7 Kxb7 Ke6 a6 Kf5 a7 Kg4 a8=Q Kg5 Qg8+ Kf5 Qd5+ Kg6 Qe5 Kh6 Qf5 Kg7 Be5+ Kh6 Qg4 Kh7 Qg7+ 
47     #27   00:24 349224K  Ka2 axb5 Kb3 b4 Kxb4 Nd2 Bxd2 Kxc7 Bf4+ Kc6 Be3 Kc7 Ba7 Kd6 Kc4 Kc6 Bb6 Kd7 Kc5 Kc8 Ba7 Kc7 Kb5 Kd7 Be3 Kc8 Bf4 Kd8 Kb6 Kc8 Bh2 Kd7 Kxb7 Ke6 a6 Kf5 a7 Kg4 a8=Q Kf3 Kb6+ Kg4 Qe4+ Kh3 Bf4 Kg4 Kb7 Kh3 Qf3+ Kh4 Qg3+ Kh5 Qg5+ 
48     #27   00:27 384547K  Ka2 axb5 Kb3 b4 Kxb4 Nd2 Bxd2 Kxc7 Bf4+ Kc6 Be3 Kc7 Ba7 Kd6 Kc4 Kc6 Bb6 Kd7 Kc5 Kc8 Ba7 Kc7 Kb5 Kd7 Be3 Kd6 Kb6 Ke5 Kxb7 Ke4 Bh6 Kf3 a6 Kg4 Bc1 Kg3 a7 Kf2 a8=Q Kf3 Qa3+ Kg4 Qe3 Kf5 Qf4+ Ke6 Kc6 Ke7 Qf5 Ke8 Qe6+ Kf8 Bh6+ 
49     #27   00:31 449354K  Ka2 axb5 Kb3 b4 Kxb4 Nd2 Bxd2 Kxc7 Bf4+ Kc6 Be3 Kc7 Ba7 Kd6 Kc4 Kc6 Bb6 Kd7 Kc5 Kc8 Ba7 Kc7 Kb5 Kd7 Be3 Kd6 Kb6 Ke5 Kxb7 Ke4 Bh6 Kf5 a6 Kg6 Bc1 Kf6 a7 Kf5 a8=Q Ke5 Qa4 Kd5 Qf4 Ke6 Bb2 Kd5 Qd4+ Ke6 Qf6+ Kd7 Ba3 Ke8 Qe7+ 
50     #27   00:33 490826K  Ka2 axb5 Kb3 b4 Kxb4 Nd2 Bxd2 Kxc7 Bf4+ Kc6 Be3 Kc7 Ba7 Kd6 Kc4 Kc6 Bb6 Kd7 Kc5 Kc8 Ba7 Kc7 Kb5 Kd7 Be3 Kc8 Bf4 Kd8 Kb6 Kd7 Kxb7 Ke6 Bc1 Kd5 a6 Kd4 a7 Kd3 a8=Q Ke4 Qa4+ Kf3 Qf4+ Ke2 Qe3+ Kf1 Qf3+ Kg1 Qe2 Kh1 Qf1+ Kh2 Bf4+ 
51     #27   00:41 632397K  Ka2 axb5 Kb3 b4 Kxb4 Nd2 Bxd2 Kxc7 Bf4+ Kc6 Be3 Kc7 Ba7 Kd6 Kc4 Kc6 Bb6 Kd7 Kc5 Kc8 Ba7 Kc7 Kb5 Kd7 Be3 Kc8 Bf4 Kd7 Kb6 Ke6 Bc7 Kf6 Kxb7 Ke6 Kb6 Kf5 a6 Ke4 a7 Kd3 a8=Q Ke3 Qg2 Kd3 Bf4 Kd4 Qc2 Kd5 Qc6+ Kd4 Kb5 Kd3 Qc4+
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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Dann Corbit
Posts: 12540
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: a test position that I composed

Post by Dann Corbit »

Here are 20 mates (including Uri's original) on the same theme:

Code: Select all

2k5/1pP5/p7/PP6/5B2/1K6/8/5n2 w - - acd 37; acs 0; bm Kb4; ce 32732; dm 18; pv Kb4 Ne3 Bxe3 Kxc7 Bf4+ Kd7 Kc5 Ke6 Kb6 axb5 Kxb7 Kd5 a6 Ke4 Bc1 Kd3 a7 Kc2 Bh6 b4 a8=Q b3 Qd8 b2 Qd2+ Kb3 Qd3+ Ka2 Qc4+ Ka1 Bg7 Kb1 Qc3 Ka1 Qxb2+; 
2k5/1pP5/p7/PP6/5B2/K7/8/5n2 w - - acd 37; acs 44; bm Kb4; ce 32732; dm 18; pv Kb4 Ne3 Bxe3 Kxc7 Bf4+ Kd7 Kc5 Ke6 Kb6 axb5 Kxb7 Kd5 a6 Ke4 Bc1 Kd3 a7 Kc2 Bh6 b4 a8=Q b3 Qd8 b2 Qd2+ Kb3 Qd3+ Ka2 Qc4+ Ka1 Bg7 Kb1 Qc3 Ka1 Qxb2+; 
2N5/8/6k1/2b5/6pp/7P/5pP1/5K2 b - - acd 39; acs 3; bm Kf5; ce 32730; dm 19; pv Kf5 Nd6+ Bxd6 Kxf2 Bc5+ Ke2 gxh3 gxh3 Kf4 Kd3 Kg3 Ke4 Kxh3 Kf3 Ba7 Kf4 Kg2 Kg4 h3 Kf4 h2 Kf5 h1=Q Ke6 Qd1 Ke7 Bc5+ Kf6 Qd5 Kg6 Qe6+ Kg7 Bd4+ Kf8 Qd7 Kg8 Qg7+; 
2N5/8/7k/2b5/6pp/7P/5pP1/5K2 b - - acd 39; acs 9; bm Kg5; ce 32730; dm 19; pv Kg5 Nd6 Bxd6 Kxf2 Bc5+ Ke2 Kf4 Kd3 gxh3 gxh3 Kg3 Ke4 Kxh3 Kf3 Ba7 Kf4 Kg2 Kg4 h3 Kf4 h2 Ke5 Kg3 Ke6 h1=Q Kd6 Qb7 Ke6 Qc6+ Kf7 Qd7+ Kf6 Bd4+ Kg6 Kg4 Kh6 Qg7+; 
5k2/5Pp1/7p/6PP/2B5/6K1/8/2n5 w - - acd 39; acs 0; bm Kg4; ce 32730; dm 19; pv Kg4 Nd3 Bxd3 Kxf7 Bc4+ Ke7 gxh6 gxh6 Kf5 Kd6 Ba2 Kc5 Kg6 Kb4 Kxh6 Ka3 Bc4 Kb2 Bf1 Kc3 Kg5 Kd2 h6 Ke3 h7 Ke4 h8=Q Kd5 Qc3 Kd6 Kg6 Kd7 Bb5+ Ke6 Qd4 Ke7 Qf6+; 
5k2/5Pp1/7p/6PP/2B5/7K/8/2n5 w - - acd 39; acs 11; bm Kg4; ce 32730; dm 19; pv Kg4 Nd3 Bxd3 Kxf7 Bc4+ Ke7 gxh6 gxh6 Kf5 Kd6 Ba2 Kc5 Kg6 Kb5 Kxh6 Kb4 Kg6 Kc3 h6 Kc2 h7 Kb2 h8=Q+ Kxa2 Kf5 Kb3 Qd4 Kc2 Ke4 Kb3 Kd3 Ka2 Kc3 Kb1 Qb6+ Kc1 Qg1+; 
5N2/8/1k6/5b2/pp6/P7/1Pp5/2K5 b - - acd 39; acs 0; bm Kb5; ce 32730; dm 19; pv Kb5 Ne6 Bxe6 Kxc2 Bf5+ Kd2 bxa3 bxa3 Kc4 Ke3 Bh7 Ke2 Kb3 Kd2 Kb2 Ke3 Kxa3 Kd2 Kb3 Ke3 a3 Kf4 a2 Ke5 a1=Q+ Kf4 Qd4+ Kg3 Qe3+ Kg4 Bd3 Kh4 Qf4+ Kh5 Qg3 Kh6 Qg6+; 
5N2/8/k7/5b2/pp6/P7/1Pp5/2K5 b - - acd 39; acs 29; bm Kb5; ce 32730; dm 19; pv Kb5 Ne6 Bxe6 Kxc2 Bf5+ Kd2 Kc4 Ke3 bxa3 bxa3 Bh7 Ke2 Kb3 Kd2 Kb2 Ke3 Kxa3 Kd2 Kb3 Ke2 a3 Kd2 a2 Ke3 a1=Q Kf4 Qf6+ Kg3 Bd3 Kg4 Be2+ Kg3 Qf3+ Kh2 Bf1 Kg1 Qg2+; 
2k5/1pP5/p7/PP6/5B2/8/1K6/5n2 w - - acd 41; acs 17; bm Kc3; ce 32728; dm 20; pv Kc3 Ne3 Bxe3 Kxc7 Bf4+ Kd7 Kb4 Ke6 Kc5 Kf5 Bc1 Ke4 Kb6 axb5 Kxb7 Kd3 a6 b4 a7 Kc2 Bh6 b3 a8=Q Kd3 Qe8 b2 Qe3+ Kc4 Qe4+ Kc3 Bg7+ Kb3 Qd3+ Ka2 Qc4+ Kb1 Qc3 Ka1 Qxb2+; 
2N5/6k1/8/2b5/6pp/7P/5pP1/5K2 b - - acd 41; acs 0; bm Kg6; ce 32728; dm 20; pv Kg6 Nd6 Bxd6 Kxf2 Bc5+ Ke2 Kg5 Kd3 gxh3 gxh3 Kf4 Kc4 Kg3 Kxc5 Kxh3 Kb5 Kg3 Kc4 h3 Kd5 h2 Ke6 h1=Q Kd6 Kf4 Kc5 Ke4 Kc6 Kd4+ Kb6 Qd5 Ka6 Kc5 Ka7 Qf7+ Kb8 Kc6 Kc8 Qf8+; 
5k2/5Pp1/7p/6PP/2B5/8/6K1/2n5 w - - acd 41; acs 3; bm Kf3; ce 32728; dm 20; pv Kf3 Nd3 Bxd3 Kxf7 Bc4+ Ke7 Kf4 Kd6 gxh6 gxh6 Kf5 Kc5 Kg6 Kxc4 Kxh6 Kd5 Kg6 Ke5 h6 Kf4 h7 Ke4 h8=Q Kd3 Qb2 Kc4 Kf5 Kc5 Qc3+ Kb5 Ke6 Kb6 Kd6 Ka6 Qb3 Ka7 Kc6 Ka6 Qa2+; 
5N2/1k6/8/5b2/pp6/P7/1Pp5/2K5 b - - acd 41; acs 11; bm Kb6; ce 32728; dm 20; pv Kb6 Ne6 Bxe6 Kxc2 Bf5+ Kd2 Kc5 Ke3 bxa3 bxa3 Kc4 Kf4 Kb3 Kxf5 Kxa3 Ke4 Kb3 Kf3 a3 Kg3 Kc4 Kf4 a2 Kf5 a1=Q Ke6 Qd4 Kf5 Kd5 Kg6 Ke6 Kg5 Qa4 Kh6 Kf6 Kh5 Qd4 Kh6 Qh4+; 
1k3N2/8/8/5b2/pp6/P7/1Pp5/2K5 b - - acd 55; acs 1; bm Kb7; ce 32714; dm 27; pv Kb7 axb4 Kc6 b5+ Kxb5 Nd7 Bxd7 Kxc2 Bf5+ Kc3 Be6 Kc2 Ba2 Kd3 Bb3 Kc3 Kc5 Kd2 Kc4 Kc1 Ba2 Kc2 Kb4 Kd2 Be6 Kc1 Bf5 Kd1 Kb3 Kc1 Bg6 Kd2 Kxb2 Ke3 a3 Kf4 a2 Ke5 a1=Q Kd6 Qa5 Ke7 Qe5+ Kd8 Qd6+ Kc8 Bf5+ Kb7 Be4+ Ka7 Qc7+ Ka6; 
2k5/1pP5/p7/PP6/5B2/8/8/1K3n2 w - - acd 55; acs 2; bm Kc2; ce 32714; dm 27; pv Kc2 axb5 Kc3 b4+ Kxb4 Nd2 Bxd2 Kxc7 Bf4+ Kc6 Be3 Kc7 Ba7 Kd6 Bb6 Kc6 Kc4 Kd7 Kc5 Kc8 Ba7 Kc7 Kb5 Kd8 Bb8 Kc8 Bf4 Kd7 Kb6 Ke6 Kxb7 Kd5 a6 Ke4 Bc1 Kd3 a7 Kc2 Bh6 Kc3 Kb6 Kd3 a8=Q Kd4 Kb5 Kd3 Qf3+ Kc2 Kb4 Kb2 Qb3+ Ka1 Bg7+; 
2k5/1pP5/p7/PP6/5B2/8/8/K4n2 w - - acd 55; acs 22; bm Ka2; c0 "http://talkchess.com/forum3/viewtopic.php?f=2&t=69699"; c3 "Ka2"; ce 32714; dm 27; id "Uri:move_the_king"; pv Ka2 axb5 Kb3 b4 Kxb4 Nd2 Bxd2 Kxc7 Bf4+ Kc6 Be3 Kc7 Ba7 Kd6 Kc4 Kc6 Bb6 Kd7 Kc5 Kc8 Ba7 Kc7 Kb5 Kd7 Be3 Kc8 Bf4 Kd8 Kb6 Kc8 Bh2 Kd7 Kxb7 Ke6 a6 Kf5 a7 Kg4 a8=Q Kg5 Qg8+ Kf5 Qd5+ Kg6 Qe5 Kh6 Qf5 Kg7 Be5+ Kh6 Qg4 Kh7 Qg7+; 
2N3k1/8/8/2b5/6pp/7P/5pP1/5K2 b - - acd 55; acs 2; bm Kf7; ce 32714; dm 27; pv Kf7 hxg4 Kg6 g5 Kxg5 Ne7 Bxe7 Kxf2 Bc5+ Kf3 Bd6 Kf2 Bh2 Ke3 Kf5 Kf3 Bg3 Ke2 Kf4 Kf1 Bh2 Kf2 Kg4 Ke1 Bg1 Kf1 Ba7 Ke2 Kg3 Kf1 Bf2 Ke2 Kxg2 Kd2 h3 Kd3 Kg3 Ke4 h2 Kd5 h1=Q+ Kd6 Kg4 Kd7 Qd5+ Ke8 Bd4 Ke7 Bc5+ Kf6; 
2N4k/8/8/2b5/6pp/7P/5pP1/5K2 b - - acd 55; acs 0; bm Kg7; ce 32714; dm 27; pv Kg7 hxg4 Kh6 g5+ Kxg5 Ne7 Bxe7 Kxf2 Bc5+ Kf3 Bd6 Kf2 Bh2 Ke3 Kf5 Kf3 Bg3 Ke2 Kf4 Kf1 Bh2 Kf2 Kg4 Ke2 Bg1 Kf1 Ba7 Ke2 Kg3 Kf1 Bf2 Ke2 Kxg2 Kd2 h3 Kd3 Kg3 Ke4 h2 Kd5; 
5k2/5Pp1/7p/6PP/2B5/8/8/2n3K1 w - - acd 55; acs 3; bm Kg2; ce 32714; dm 27; pv Kg2 hxg5 Kf3 g4+ Kxg4 Ne2 Bxe2 Kxf7 Bc4+ Kf6 Bd3 Kf7 Bh7 Ke6 Kf4 Kf6 Bg6 Ke7 Kf5 Kf8 Bh7 Kf7 Kg5 Ke8 Bg8 Kf8 Bc4 Ke8 Kg6 Kf8 Kh7 Ke8 Kxg7 Kd7 h6 Kd6 Kg6 Ke5 h7 Kd6 Ba6 Kc5 h8=Q Kb4 Qb2+ Kc5 Qc3+ Kd6 Bb5 Ke6 Qd4 Ke7 Qf6+; 
5k2/5Pp1/7p/6PP/2B5/8/8/2n4K w - - acd 55; acs 0; bm Kh2; ce 32714; dm 27; pv Kh2 hxg5 Kg3 g4 Kxg4 Ne2 Bxe2 Kxf7 Bc4+ Kf6 Bd3 Kf7 Bh7 Ke6 Kf4 Kf6 Bg6 Ke7 Kf5 Kf8 Bh7 Kf7 Kg5 Ke7 Bg8 Kf8 Ba2 Ke7 Kg6 Kf8 Bc4 Ke8 Kxg7 Kd7 Bf1 Kd8 h6 Kc7 h7 Kd6 h8=Q; 
k4N2/8/8/5b2/pp6/P7/1Pp5/2K5 b - - acd 55; acs 0; bm Kb7; ce 32714; dm 27; pv Kb7 axb4 Kb6 b5 Kxb5 Nd7 Bxd7 Kxc2 Bf5+ Kc3 Be6 Kc2 Ba2 Kd3 Bb3 Kc3 Kc5 Kd2 Kc4 Kc1 Ba2 Kc2 Kb4 Kd1 Bb1 Kc1 Bh7 Kd2 Kb3 Kc1 Bf5 Kd2 Kxb2 Ke3 a3 Kd4 Kb3 Ke5 Bc8 Kf4 a2 Ke3 a1=Q Kf3 Qf6+ Kg3 Qf1 Kh4 Qg2 Kh5;
Some are a bit shorter due to board geometry, but the interesting thing is that the one that took longest to solve was one of the two shortest mates.
[d]2k5/1pP5/p7/PP6/5B2/K7/8/5n2 w - - acd 37; acs 44; bm Kb4; ce 32732; dm 18; pv Kb4 Ne3 Bxe3 Kxc7 Bf4+ Kd7 Kc5 Ke6 Kb6 axb5 Kxb7 Kd5 a6 Ke4 Bc1 Kd3 a7 Kc2 Bh6 b4 a8=Q b3 Qd8 b2 Qd2+ Kb3 Qd3+ Ka2 Qc4+ Ka1 Bg7 Kb1 Qc3 Ka1 Qxb2+;
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: a test position that I composed

Post by MikeB »

Dann Corbit wrote: ↑Thu Jan 24, 2019 9:15 pm Here are 20 mates (including Uri's original) on the same theme:

Code: Select all

2k5/1pP5/p7/PP6/5B2/1K6/8/5n2 w - - acd 37; acs 0; bm Kb4; ce 32732; dm 18; pv Kb4 Ne3 Bxe3 Kxc7 Bf4+ Kd7 Kc5 Ke6 Kb6 axb5 Kxb7 Kd5 a6 Ke4 Bc1 Kd3 a7 Kc2 Bh6 b4 a8=Q b3 Qd8 b2 Qd2+ Kb3 Qd3+ Ka2 Qc4+ Ka1 Bg7 Kb1 Qc3 Ka1 Qxb2+; 
2k5/1pP5/p7/PP6/5B2/K7/8/5n2 w - - acd 37; acs 44; bm Kb4; ce 32732; dm 18; pv Kb4 Ne3 Bxe3 Kxc7 Bf4+ Kd7 Kc5 Ke6 Kb6 axb5 Kxb7 Kd5 a6 Ke4 Bc1 Kd3 a7 Kc2 Bh6 b4 a8=Q b3 Qd8 b2 Qd2+ Kb3 Qd3+ Ka2 Qc4+ Ka1 Bg7 Kb1 Qc3 Ka1 Qxb2+; 
2N5/8/6k1/2b5/6pp/7P/5pP1/5K2 b - - acd 39; acs 3; bm Kf5; ce 32730; dm 19; pv Kf5 Nd6+ Bxd6 Kxf2 Bc5+ Ke2 gxh3 gxh3 Kf4 Kd3 Kg3 Ke4 Kxh3 Kf3 Ba7 Kf4 Kg2 Kg4 h3 Kf4 h2 Kf5 h1=Q Ke6 Qd1 Ke7 Bc5+ Kf6 Qd5 Kg6 Qe6+ Kg7 Bd4+ Kf8 Qd7 Kg8 Qg7+; 
2N5/8/7k/2b5/6pp/7P/5pP1/5K2 b - - acd 39; acs 9; bm Kg5; ce 32730; dm 19; pv Kg5 Nd6 Bxd6 Kxf2 Bc5+ Ke2 Kf4 Kd3 gxh3 gxh3 Kg3 Ke4 Kxh3 Kf3 Ba7 Kf4 Kg2 Kg4 h3 Kf4 h2 Ke5 Kg3 Ke6 h1=Q Kd6 Qb7 Ke6 Qc6+ Kf7 Qd7+ Kf6 Bd4+ Kg6 Kg4 Kh6 Qg7+; 
5k2/5Pp1/7p/6PP/2B5/6K1/8/2n5 w - - acd 39; acs 0; bm Kg4; ce 32730; dm 19; pv Kg4 Nd3 Bxd3 Kxf7 Bc4+ Ke7 gxh6 gxh6 Kf5 Kd6 Ba2 Kc5 Kg6 Kb4 Kxh6 Ka3 Bc4 Kb2 Bf1 Kc3 Kg5 Kd2 h6 Ke3 h7 Ke4 h8=Q Kd5 Qc3 Kd6 Kg6 Kd7 Bb5+ Ke6 Qd4 Ke7 Qf6+; 
5k2/5Pp1/7p/6PP/2B5/7K/8/2n5 w - - acd 39; acs 11; bm Kg4; ce 32730; dm 19; pv Kg4 Nd3 Bxd3 Kxf7 Bc4+ Ke7 gxh6 gxh6 Kf5 Kd6 Ba2 Kc5 Kg6 Kb5 Kxh6 Kb4 Kg6 Kc3 h6 Kc2 h7 Kb2 h8=Q+ Kxa2 Kf5 Kb3 Qd4 Kc2 Ke4 Kb3 Kd3 Ka2 Kc3 Kb1 Qb6+ Kc1 Qg1+; 
5N2/8/1k6/5b2/pp6/P7/1Pp5/2K5 b - - acd 39; acs 0; bm Kb5; ce 32730; dm 19; pv Kb5 Ne6 Bxe6 Kxc2 Bf5+ Kd2 bxa3 bxa3 Kc4 Ke3 Bh7 Ke2 Kb3 Kd2 Kb2 Ke3 Kxa3 Kd2 Kb3 Ke3 a3 Kf4 a2 Ke5 a1=Q+ Kf4 Qd4+ Kg3 Qe3+ Kg4 Bd3 Kh4 Qf4+ Kh5 Qg3 Kh6 Qg6+; 
5N2/8/k7/5b2/pp6/P7/1Pp5/2K5 b - - acd 39; acs 29; bm Kb5; ce 32730; dm 19; pv Kb5 Ne6 Bxe6 Kxc2 Bf5+ Kd2 Kc4 Ke3 bxa3 bxa3 Bh7 Ke2 Kb3 Kd2 Kb2 Ke3 Kxa3 Kd2 Kb3 Ke2 a3 Kd2 a2 Ke3 a1=Q Kf4 Qf6+ Kg3 Bd3 Kg4 Be2+ Kg3 Qf3+ Kh2 Bf1 Kg1 Qg2+; 
2k5/1pP5/p7/PP6/5B2/8/1K6/5n2 w - - acd 41; acs 17; bm Kc3; ce 32728; dm 20; pv Kc3 Ne3 Bxe3 Kxc7 Bf4+ Kd7 Kb4 Ke6 Kc5 Kf5 Bc1 Ke4 Kb6 axb5 Kxb7 Kd3 a6 b4 a7 Kc2 Bh6 b3 a8=Q Kd3 Qe8 b2 Qe3+ Kc4 Qe4+ Kc3 Bg7+ Kb3 Qd3+ Ka2 Qc4+ Kb1 Qc3 Ka1 Qxb2+; 
2N5/6k1/8/2b5/6pp/7P/5pP1/5K2 b - - acd 41; acs 0; bm Kg6; ce 32728; dm 20; pv Kg6 Nd6 Bxd6 Kxf2 Bc5+ Ke2 Kg5 Kd3 gxh3 gxh3 Kf4 Kc4 Kg3 Kxc5 Kxh3 Kb5 Kg3 Kc4 h3 Kd5 h2 Ke6 h1=Q Kd6 Kf4 Kc5 Ke4 Kc6 Kd4+ Kb6 Qd5 Ka6 Kc5 Ka7 Qf7+ Kb8 Kc6 Kc8 Qf8+; 
5k2/5Pp1/7p/6PP/2B5/8/6K1/2n5 w - - acd 41; acs 3; bm Kf3; ce 32728; dm 20; pv Kf3 Nd3 Bxd3 Kxf7 Bc4+ Ke7 Kf4 Kd6 gxh6 gxh6 Kf5 Kc5 Kg6 Kxc4 Kxh6 Kd5 Kg6 Ke5 h6 Kf4 h7 Ke4 h8=Q Kd3 Qb2 Kc4 Kf5 Kc5 Qc3+ Kb5 Ke6 Kb6 Kd6 Ka6 Qb3 Ka7 Kc6 Ka6 Qa2+; 
5N2/1k6/8/5b2/pp6/P7/1Pp5/2K5 b - - acd 41; acs 11; bm Kb6; ce 32728; dm 20; pv Kb6 Ne6 Bxe6 Kxc2 Bf5+ Kd2 Kc5 Ke3 bxa3 bxa3 Kc4 Kf4 Kb3 Kxf5 Kxa3 Ke4 Kb3 Kf3 a3 Kg3 Kc4 Kf4 a2 Kf5 a1=Q Ke6 Qd4 Kf5 Kd5 Kg6 Ke6 Kg5 Qa4 Kh6 Kf6 Kh5 Qd4 Kh6 Qh4+; 
1k3N2/8/8/5b2/pp6/P7/1Pp5/2K5 b - - acd 55; acs 1; bm Kb7; ce 32714; dm 27; pv Kb7 axb4 Kc6 b5+ Kxb5 Nd7 Bxd7 Kxc2 Bf5+ Kc3 Be6 Kc2 Ba2 Kd3 Bb3 Kc3 Kc5 Kd2 Kc4 Kc1 Ba2 Kc2 Kb4 Kd2 Be6 Kc1 Bf5 Kd1 Kb3 Kc1 Bg6 Kd2 Kxb2 Ke3 a3 Kf4 a2 Ke5 a1=Q Kd6 Qa5 Ke7 Qe5+ Kd8 Qd6+ Kc8 Bf5+ Kb7 Be4+ Ka7 Qc7+ Ka6; 
2k5/1pP5/p7/PP6/5B2/8/8/1K3n2 w - - acd 55; acs 2; bm Kc2; ce 32714; dm 27; pv Kc2 axb5 Kc3 b4+ Kxb4 Nd2 Bxd2 Kxc7 Bf4+ Kc6 Be3 Kc7 Ba7 Kd6 Bb6 Kc6 Kc4 Kd7 Kc5 Kc8 Ba7 Kc7 Kb5 Kd8 Bb8 Kc8 Bf4 Kd7 Kb6 Ke6 Kxb7 Kd5 a6 Ke4 Bc1 Kd3 a7 Kc2 Bh6 Kc3 Kb6 Kd3 a8=Q Kd4 Kb5 Kd3 Qf3+ Kc2 Kb4 Kb2 Qb3+ Ka1 Bg7+; 
2k5/1pP5/p7/PP6/5B2/8/8/K4n2 w - - acd 55; acs 22; bm Ka2; c0 "http://talkchess.com/forum3/viewtopic.php?f=2&t=69699"; c3 "Ka2"; ce 32714; dm 27; id "Uri:move_the_king"; pv Ka2 axb5 Kb3 b4 Kxb4 Nd2 Bxd2 Kxc7 Bf4+ Kc6 Be3 Kc7 Ba7 Kd6 Kc4 Kc6 Bb6 Kd7 Kc5 Kc8 Ba7 Kc7 Kb5 Kd7 Be3 Kc8 Bf4 Kd8 Kb6 Kc8 Bh2 Kd7 Kxb7 Ke6 a6 Kf5 a7 Kg4 a8=Q Kg5 Qg8+ Kf5 Qd5+ Kg6 Qe5 Kh6 Qf5 Kg7 Be5+ Kh6 Qg4 Kh7 Qg7+; 
2N3k1/8/8/2b5/6pp/7P/5pP1/5K2 b - - acd 55; acs 2; bm Kf7; ce 32714; dm 27; pv Kf7 hxg4 Kg6 g5 Kxg5 Ne7 Bxe7 Kxf2 Bc5+ Kf3 Bd6 Kf2 Bh2 Ke3 Kf5 Kf3 Bg3 Ke2 Kf4 Kf1 Bh2 Kf2 Kg4 Ke1 Bg1 Kf1 Ba7 Ke2 Kg3 Kf1 Bf2 Ke2 Kxg2 Kd2 h3 Kd3 Kg3 Ke4 h2 Kd5 h1=Q+ Kd6 Kg4 Kd7 Qd5+ Ke8 Bd4 Ke7 Bc5+ Kf6; 
2N4k/8/8/2b5/6pp/7P/5pP1/5K2 b - - acd 55; acs 0; bm Kg7; ce 32714; dm 27; pv Kg7 hxg4 Kh6 g5+ Kxg5 Ne7 Bxe7 Kxf2 Bc5+ Kf3 Bd6 Kf2 Bh2 Ke3 Kf5 Kf3 Bg3 Ke2 Kf4 Kf1 Bh2 Kf2 Kg4 Ke2 Bg1 Kf1 Ba7 Ke2 Kg3 Kf1 Bf2 Ke2 Kxg2 Kd2 h3 Kd3 Kg3 Ke4 h2 Kd5; 
5k2/5Pp1/7p/6PP/2B5/8/8/2n3K1 w - - acd 55; acs 3; bm Kg2; ce 32714; dm 27; pv Kg2 hxg5 Kf3 g4+ Kxg4 Ne2 Bxe2 Kxf7 Bc4+ Kf6 Bd3 Kf7 Bh7 Ke6 Kf4 Kf6 Bg6 Ke7 Kf5 Kf8 Bh7 Kf7 Kg5 Ke8 Bg8 Kf8 Bc4 Ke8 Kg6 Kf8 Kh7 Ke8 Kxg7 Kd7 h6 Kd6 Kg6 Ke5 h7 Kd6 Ba6 Kc5 h8=Q Kb4 Qb2+ Kc5 Qc3+ Kd6 Bb5 Ke6 Qd4 Ke7 Qf6+; 
5k2/5Pp1/7p/6PP/2B5/8/8/2n4K w - - acd 55; acs 0; bm Kh2; ce 32714; dm 27; pv Kh2 hxg5 Kg3 g4 Kxg4 Ne2 Bxe2 Kxf7 Bc4+ Kf6 Bd3 Kf7 Bh7 Ke6 Kf4 Kf6 Bg6 Ke7 Kf5 Kf8 Bh7 Kf7 Kg5 Ke7 Bg8 Kf8 Ba2 Ke7 Kg6 Kf8 Bc4 Ke8 Kxg7 Kd7 Bf1 Kd8 h6 Kc7 h7 Kd6 h8=Q; 
k4N2/8/8/5b2/pp6/P7/1Pp5/2K5 b - - acd 55; acs 0; bm Kb7; ce 32714; dm 27; pv Kb7 axb4 Kb6 b5 Kxb5 Nd7 Bxd7 Kxc2 Bf5+ Kc3 Be6 Kc2 Ba2 Kd3 Bb3 Kc3 Kc5 Kd2 Kc4 Kc1 Ba2 Kc2 Kb4 Kd1 Bb1 Kc1 Bh7 Kd2 Kb3 Kc1 Bf5 Kd2 Kxb2 Ke3 a3 Kd4 Kb3 Ke5 Bc8 Kf4 a2 Ke3 a1=Q Kf3 Qf6+ Kg3 Qf1 Kh4 Qg2 Kh5;
Some are a bit shorter due to board geometry, but the interesting thing is that the one that took longest to solve was one of the two shortest mates.
[d]2k5/1pP5/p7/PP6/5B2/K7/8/5n2 w - - acd 37; acs 44; bm Kb4; ce 32732; dm 18; pv Kb4 Ne3 Bxe3 Kxc7 Bf4+ Kd7 Kc5 Ke6 Kb6 axb5 Kxb7 Kd5 a6 Ke4 Bc1 Kd3 a7 Kc2 Bh6 b4 a8=Q b3 Qd8 b2 Qd2+ Kb3 Qd3+ Ka2 Qc4+ Ka1 Bg7 Kb1 Qc3 Ka1 Qxb2+;
whatever you do, don't play b6?? 😉
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peter
Posts: 3186
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: a test position that I composed

Post by peter »

Hi!
Uri Blass wrote: ↑Thu Jan 24, 2019 10:28 am White needs to move the king to win the game

[d]2k5/1pP5/p7/PP6/5B2/8/8/K4n2 w - - 0 1
Very selective position.
Without tbs so far no problems to choose a King move almost at once only for these ones:
Hiarcs 14, Fritz 14, komodo MCTS and ShashChess 5.0, when its Analysis Contempt is on for White, Black or Both, funny enough fastest with "Both".
None of the "Old Master- Options" need not be on.
Peter.
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