Author: Michel Langeveld
Date: 09:14:01 09/08/00
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On September 08, 2000 at 07:39:34, Jari Huikari wrote: >Perhaps even the initial position of chess is mate in n for white with some >very big n ... :-) So it'd be better to ask: > >How many mate in n they have found from 300 Win At Chess positions? > > Jari The Chess Analysis Project has 224 epd's with in the comments noted it are WAC positions. (Possibly CAP has all positions analyzed in it but not all positions have the string WAC in its comments). Of the 224 positions I found the folowing 33 mates, which is about 6.7%. Possibly if you search deeper you will find more mates. I don't found see Vincent's positions so total their must be atleast 34 positions. Kind regards, Michel Langeveld 1b5k/7P/p1p2np1/2P2p2/PP3P2/4RQ1R/q2r3P/6K1 w - - acd 7; acn 179301; ce 32752; pv Re8+ Nxe8 Qc3+ Ng7 Qxg7+ Kxg7 h8=Q+ Kf7 Rh7+ Ke6 Qg8+ Kf6 Qf8+ Ke6 Qf7#; pm Re8+; bm Re8+; id "WAC.250"; 1k6/5RP1/1P6/1K6/6r1/8/8/8 w - - acd 13; acn 159513770; ce 32744; pv Ka5 Rg1 Rf8+ Kb7 g8=Q Rxg8 Rxg8 Kc6 Rg6+ Kc5 b7 Kc4 b8=Q Kc3 Qe5+ Kd2 Rg2+ Kd3 Rg3+; pm Ka5; bm Ka5; id "WAC.041"; 1rb1r1k1/p1p2ppp/5n2/2pP4/5P2/2QB4/qNP3PP/2KRB2R b - - acd 9; acn 1000; ce 32758; pv Re2 Bxe2 Ne4 Qxg7+ Kxg7 Bc3+ Kg8 Bg7 Qa1#; pm Re2; bm Re2; id "WAC.252"; 2b2r1k/4q2p/3p2pQ/2pBp3/8/6P1/1PP2P1P/R5K1 w - - acd 9; acn 1000; ce 32756; pv Ra7 Bb7 Rxb7 Ra8 Rxe7 Ra1+ Kg2 Rg1+ Kxg1 g5 Rxh7#; pm Ra7; bm Ra7; id "WAC.201"; 2r1kb1r/pp3ppp/2n1b3/1q1N2B1/1P2Q3/8/P4PPP/3RK1NR w Kk - acd 4; acn 3205; ce 32758; pv Nc7+ Rxc7 Qxc6+ Bd7 Qe4+ Qe5 Qxe5+ Be6 Rd8#; pm Nc7+; bm Nc7+; id "WAC.267"; 2r1r2k/1q3ppp/p2Rp3/2p1P3/6QB/p3P3/bP3PPP/3R2K1 w - - acd 9; acn 6462927; ce 32756; pv Bf6 gxf6 exf6 Rg8 Rd8 Rcxd8 Rxd8 Qxg2+ Qxg2 Rxd8 Qg7#; pm Bf6; bm Bf6; id "WAC.222"; 2r3kr/ppp2n1p/7B/5q1N/1bp5/2Pp4/PP2RPPP/R2Q2K1 w - - acd 11; acn 50715101; ce 32746; pv Re8+ Rxe8 Qg4+ Ng5 Qxf5 Re6 Bxg5 Re2 Nf6+ Kg7 Bh6+ Kf7 Ne4+ Ke8 Qe6+ Kd8 Bg5+ Be7 Bxe7+ Ke8 Nf6#; pm Re8+; bm Re8+; id "WAC.268"; 2rq1rk1/pp3ppp/2n2b2/4NR2/3P4/PB5Q/1P4PP/3R2K1 w - - acd 5; acn 6620; ce 32756; pv Qxh7+ Kxh7 Rh5+ Kg8 Ng6 Bxd4+ Kh1 Qh4 Rxh4 Bxb2 Rh8#; pm Qxh7+; bm Qxh7+; id "WAC.241"; 2rr3k/pp3pp1/1nnqbN1p/3pN3/2pP4/2P3Q1/PPB4P/R4RK1 w - - acd 5; acn 65206; ce 32764; pv Qg6 fxg6 Nxg6#; pm Qg6; bm Qg6; id "WAC.001"; 3q1rk1/4bp1p/1n2P2Q/3p1p2/6r1/Pp2R2N/1B4PP/7K w - - acd 7; acn 1493495; ce 32760; pv Ng5 Rxg5 Rh3 Re8 Qxh7+ Kf8 Qxf7#; pm Ng5; bm Ng5; id "WAC.283"; 3Q4/p3b1k1/2p2rPp/2q5/4B3/P2P4/7P/6RK w - - acd 4; acn 1981; ce 32760; pv Qh8+ Kxh8 g7+ Kg8 Bh7+ Kxh7 g8=Q#; pm Qh8+; bm Qh8+; id "WAC.298"; 3r3k/3r1P1p/pp1Nn3/2pp4/7Q/6R1/Pq4PP/5RK1 w - - acd 4; acn 14394; ce 32760; pv Qxd8+ Rxd8 f8=Q+ Rxf8 Rxf8+ Nxf8 Nf7#; pm Qxd8+; bm Qxd8+; id "WAC.161"; 4r1k1/5bpp/2p5/3pr3/8/1B3pPq/PPR2P2/2R2QK1 b - - acd 4; acn 11162; ce 32762; pv Re1 Rxe1 Rxe1 Qxe1 Qg2#; pm Re1; bm Re1; id "WAC.132"; 4r3/p4r1p/R1p2pp1/1p1bk3/4pNPP/2P1K3/2P2P2/3R4 w - - acd 4; acn 1601; ce 32762; pv Rxd5+ cxd5 Nd3+ exd3 f4#; pm Rxd5+; bm Rxd5+; id "WAC.295"; 5b2/pp2r1pk/2pp1pRp/4rP1N/2P1P3/1P4QP/P3q1P1/5R1K w - - acd 4; acn 3067; ce 32762; pv Rxh6+ gxh6 Nxf6+ Kh8 Qg8#; pm Rxh6+; bm Rxh6+; id "WAC.143"; 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - acd 12; acn 28169133; ce 32746; pv Qg2+ Nxg2 hxg2+ Kxg2 Bf3+ Qxf3 exf3+ Kg1 Rf5 Rfe1 Rfh5 Re8+ Kf7 Re7+ Kxe7 Re1+ Kd8 Re8+ Kxe8 dxc6 Rh1#; pm Qg2+; bm Qg2+; id "WAC.163"; 6k1/2p3p1/1p1p1nN1/1B1P4/4PK2/8/2r3b1/7R w - - acd 4; acn 6341; ce 32760; pv Rh8+ Kf7 Be8+ Nxe8 Kg5 Bxe4 Rf8#; pm Rh8+; bm Rh8+; id "WAC.282"; 6k1/5p2/p5np/4B3/3P4/1PP1q3/P3r1QP/6RK w - - acd 4; acn 1502; ce 32762; pv Qa8+ Kh7 Qh8+ Nxh8 Rg7#; pm Qa8+; bm Qa8+; id "WAC.097"; 6k1/pp5p/2p3q1/6BP/2nPr1Q1/8/PP3R1K/8 w - - acd 9; acn 18368318; ce 32754; pv Bh6 Re2 hxg6 Rxf2+ Kh3 Rf5 gxh7+ Kf7 Qxf5+ Ke7 h8=Q Nxb2 Qhf8#; pm Bh6; bm Bh6; id "WAC.218"; 7k/p7/1R5K/6r1/6p1/6P1/8/8 w - - acd 21; acn -1428786731; ce 32746; pv Rb7 Rh5+ Kxh5 Kg8 Rxa7 Kf8 Kxg4; pm Rb7; bm Rb7; id "WAC.006"; b4r1k/pq2rp2/1p1bpn1p/3PN2n/2P2P2/P2B3K/1B2Q2N/3R2R1 w - - acd 4; acn 9816; ce 32762; pv Qxh5 exd5 Qxh6+ Nh7 Qxh7#; pm Qxh5; bm Qxh5; id "WAC.104"; k7/p4p2/P1q1b1p1/3p3p/3Q4/7P/5PP1/1R4K1 w - - acd 7; acn 173606; ce 32756; pv Qe5 Qc8 Qd6 Bd7 Rb8+ Qxb8 Qxd5+ Bc6 Qxc6+ Qb7 Qxb7#; pm Qe5; bm Qe5; id "WAC.251"; r1b2r2/5P1p/ppn3pk/2p1p1Nq/1bP1PQ2/3P4/PB4BP/1R3RK1 w - - acd 9; acn 2873587; ce 32748; pv Ne6+ g5 Qf6+ Qg6 Bc1 Bd2 Bxd2 Bxe6 Bxg5+ Kh5 Bf3+ Bg4 Bxg4+ Kxg4 Rf4+ exf4 Qxf4+ Kh3 Qh4#; pm Ne6+; bm Ne6+; id "WAC.159"; r1b3r1/4qk2/1nn1p1p1/3pPp1P/p4P2/1p3BQN/PKPBN3/3R3R b - - acd 4; acn 12233; ce 32762; pv Qa3+ Kb1 Qxa2+ Kc1 Qxc2#; pm Qa3+; bm Qa3+; id "WAC.177"; r1bq2rk/pp3pbp/2p1p1pQ/7P/3P4/2PB1N2/PP3PPR/2KR4 w - - acd 4; acn 1340; ce 32764; pv Qxh7+ Kxh7 hxg6#; pm Qxh7+; bm Qxh7+; id "WAC.004"; r1bq3r/ppppR1p1/5n1k/3P4/6pP/3Q4/PP1N1PP1/5K1R w - - acd 7; acn 947061; ce 32758; pv h5 Nxh5 Qf5 Qe8 Rxe8 g6 Rxh8+ Kg7 Qf8#; pm h5; bm h5; id "WAC.138"; r2qkb1r/pppb2pp/2np1n2/5pN1/2BQP3/2N5/PPP2PPP/R1B1K2R w KQkq - acd 4; acn 15006; ce 32758; pv Bf7+ Ke7 Qxf6+ Kxf6 Nd5+ Ke5 Nf3+ Kxe4 Nc3#; pm Bf7+; bm Bf7+; id "WAC.278"; r2r2k1/pb3ppp/1p1bp3/7q/3n2nP/PP1B2P1/1B1N1P2/RQ2NRK1 b - - acd 9; acn 7606212; ce 32756; pv Qxh4 Nef3 Nxf3+ Nxf3 Bxf3 Bxh7+ Kf8 Bxg7+ Ke8 gxh4 Bh2#; pm Qxh4; bm Qxh4; id "WAC.105"; r3k2r/pb1q1p2/8/2p1pP2/4p1p1/B1P1Q1P1/P1P3K1/R4R2 b kq - acd 10; acn 42194213; ce 32752; pv Qd2+ Rf2 Qxe3 Bxc5 Qxc5 Rg1 e3+ Kf1 exf2 Rh1 Rxh1+ Ke2 Qxc3 Kxf2 Qe1#; pm Qd2+; bm Qd2+; id "WAC.168"; r4q1k/p2bR1rp/2p2Q1N/5p2/5p2/2P5/PP3PPP/R5K1 w - - acd 12; acn 84536072; ce 32752; pv Rf7 Qg8 Nxg8 Rxg8 Rxd7 f3 Rxg7 Rxg7 Re1 h5 Qh6+ Kg8 Re8+ Kf7 Qe6#; pm Rf7; bm Rf7; id "WAC.008"; r4rk1/5ppp/p3q1n1/2p2NQ1/4n3/P3P3/1B3PPP/1R3RK1 w - - acd 5; acn 12463; ce 32762; pv Qh6 Qe5 Bxe5 gxh6 Nxh6#; pm Qh6; bm Qh6; id "WAC.203"; r5r1/p1q2p1k/1p1R2pB/3pP3/6bQ/2p5/P1P1NPPP/6K1 w - - acd 4; acn 3538; ce 32762; pv Bf8+ Bh5 Qxh5+ gxh5 Rh6#; pm Bf8+; bm Bf8+; id "WAC.186"; r6k/p1Q4p/2p1b1rq/4p3/B3P3/4P3/PPP3P1/4RRK1 b - - acd 4; acn 13208; ce 32758; pv Rxg2+ Kxg2 Qh3+ Kf2 Qh2+ Kf3 Rf8+ Qf7 Rxf7#; pm Rxg2+; bm Rxg2+; id "WAC.088";
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