Thanks for the PV above.tpoppins wrote:From a post a few pages back:
Three weeks later:tpoppins wrote:Topalov - Shirov, Linares 1998 (r10)
[d]8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47
Current Let's Check status:
Here are the goods:
[pgn][Event "Linares 15th"]
[Site "Linares"]
[Date "1998.03.04"]
[Round "10"]
[White "Topalov, Veselin"]
[Black "Shirov, Alexei"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2740"]
[BlackElo "2710"]
[Annotator "SF 121216 x64 POPCNT"]
[SetUp "1"]
[FEN "8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47"]
[PlyCount "63"]
47... Bh3 $3 48. Kh2 ({after} 48. Kf2 {
Black mates a move quicker:} Kf5 49. g4+ Bxg4 50. Ke3 a3 51. Ba1 a2 52. Bb2
Bh3 53. Kd4 Bg2 54. Kc5 g5 55. h5 Be4 56. Kb4 g4 57. h6 Kg6 58. h7 Kxh7 59. Kb3
Bb1 60. Bc3 Kh6 61. Kb2 Kg5 62. Bd2+ Kh4 63. Bh6 g3 64. Bg7 f5 65. Ka3 f4 66.
Ka4 Be4 67. Be5 f3 68. Kb4 Kh3 69. Kc5 f2 70. Kd6 f1=Q 71. Ke7 a1=Q 72. Bxa1
Qxa1 73. Ke6 Qa6+ 74. Kd7 g2 75. Ke8 g1=Q 76. Kd8 Qg7 77. Ke8 Qa8#) 48... Bg4
49. Kg3 Kf5 50. Bb2 Bh5 51. Kf2 Ke4 52. Ke1 Ke3 53. g3 f5 54. Kf1 Kd2 55. Kf2
Bg4 56. Kf1 Kc2 57. Bd4 a3 58. Bc5 a2 59. Bd4 Kb1 60. Kf2 a1=Q 61. Bxa1 Kxa1
62. Ke3 Kb2 63. Kd4 Bf3 64. Kd3 Kb3 65. h5 gxh5 66. Kd4 Be4 67. Ke5 Kc3 68. Kf6
d4 69. Ke5 d3 70. Kd6 d2 71. Ke7 d1=Q 72. Ke6 Qd8 73. g4 hxg4 74. Ke5 Qe7+ 75.
Kf4 g3 76. Kxg3 Qg5+ 77. Kh3 Qg2+ 78. Kh4 Qg4# 0-1
[/pgn]
Backsolved with SF 121216 x64 POPCNT and 16 GB hash over the course of a sleepless December night, TBs off; verified with same without clearing the hash:
[d]8/8/4kpp1/3p4/p6P/2B4b/6P1/6K1 w - - 0 48
Code: Select all
Analysis by Stockfish 121216 x64 POPCNT: 1. -+ (-#30): 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Kd3 55.Bb2 Bg4 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.Ke5 d3 66.h5 gxh5 67.Kxf5 d2 68.Kf6 d1Q 69.Ke7 h4 70.Kf7 Qf1+ 71.Ke8 Qxg2 72.Ke7 h3 73.Kf7 h2 74.Kf6 Qc6+ 75.Kf5 h1Q 76.Kg5 Qhf3 77.Kh4 Qcf6# 2. -+ (-#29): 48.Kf2 Kf5 49.Bb2 Ke4 50.g3 Bg4 51.Ke1 Kd3 52.Kf1 Kc2 53.Bxf6 a3 54.Be7 d4 55.Bxa3 d3 56.Bb4 d2 57.Bxd2 Kxd2 58.Kf2 Kd3 59.Kf1 Ke3 60.Kg2 Ke2 61.Kg1 Kf3 62.Kf1 Kxg3 63.Ke1 Kxh4 64.Kf2 g5 65.Kg2 Bh5 66.Kf2 g4 67.Ke2 g3+ 68.Kf1 Bf3 69.Ke1 g2 70.Kf2 Kg4 71.Kg1 Kf4 72.Kh2 Ke4 73.Kg1 Ke3 74.Kh2 Kf2 75.Kh3 g1Q 76.Kh4 Qg3# Depth: 76/80 05:12:31 752255 MN
And a single-PV run at the root done the same way, starting with the iteration that shows a complete mating line. Quite a few of those here
8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - 0 47
Code: Select all
47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.Ke5 d3 66.h5 gxh5 67.Kxf5 d2 68.Kf6 d1Q 69.Ke7 Qe2+ 70.Kf7 Qxg2 71.Ke7 Qg6 72.Kd7 h4 73.Kd8 h3 74.Ke7 h2 75.Kd7 h1Q 76.Kc8 Qgc6+ 77.Kb8 Qb7# -+ (-#31) Depth: 56/66 00:00:01 23364kN [identical PVs snipped] 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.Ke5 d3 66.h5 gxh5 67.Kxf5 d2 68.Kf6 d1Q 69.Ke7 Qe2+ 70.Kf7 Qxg2 71.Ke7 Qg6 72.Kd7 h4 73.Kd8 h3 74.Ke7 h2 75.Kd7 h1Q 76.Kc8 Qgc6+ 77.Kb8 Qb7# -+ (-#31) Depth: 78/66 00:04:18 9975MN 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.Ke5 d3 66.h5 gxh5 67.Kxf5 d2 68.Kf6 d1Q 69.Ke7 Qe2+ 70.Kf7 Qxg2 71.Ke7 Qd5 72.Kf8 h4 73.Ke7 h3 74.Kf6 h2 75.Ke7 h1Q 76.Kf6 Qh8+ 77.Kg6 Qdh5# -+ (-#31) Depth: 79/66 00:23:19 54323MN 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.Ke5 d3 66.h5 gxh5 67.Kxf5 d2 68.Kf6 d1Q 69.Ke7 Qd5 70.g3 Kc3 71.Kf6 Kd4 72.g4 hxg4 73.Kg6 Ke5 74.Kg7 Qe6 75.Kh7 Kf6 76.Kh8 Qe7 77.Kg8 Qg7# -+ (-#31) Depth: 80/66 00:38:08 89404MN 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.Ke5 d3 66.h5 gxh5 67.Kxf5 d2 68.Kf6 d1Q 69.Ke7 Qe2+ 70.Kf7 Qxg2 71.Ke7 Qd5 72.Kf8 Qd7 73.Kg8 Kc3 74.Kf8 Kd4 75.Kg8 Ke5 76.Kf8 Kf6 77.Kg8 Qg7# -+ (-#31) Depth: 81/66 02:07:53 302530MN [funny how these two last PVs end with the same move without being identical] 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.g4 Bxg4 66.Kxg4 d3 67.Kg5 d2 68.h5 gxh5 69.Kxh5 d1Q+ 70.Kg5 Qf1 71.Kg4 Kc3 72.Kg3 Qf6 73.Kg4 Kd4 74.Kh5 Ke3 75.Kg4 Qg6+ 76.Kh4 Kf3 77.Kh3 Qh6# -+ (-#31) Depth: 82/66 02:08:57 305097MN 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.g4 Bxg4 66.Kxg4 d3 67.Kg5 d2 68.h5 gxh5 69.Kxh5 d1Q+ 70.Kg5 Qf1 71.Kg4 Kc3 72.Kg3 Qf6 73.Kg4 Kd4 74.Kh5 Ke3 75.Kg4 Qg6+ 76.Kh4 Kf3 77.Kh3 Qh6# -+ (-#31) Depth: 83/66 02:44:51 391300MN 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.g4 Bxg4 66.Kxg4 d3 67.Kg5 d2 68.h5 gxh5 69.Kxh5 d1Q+ 70.Kg5 Qf1 71.Kg4 Qf7 72.Kg3 Kc3 73.Kg4 Kd4 74.Kh3 Qg7 75.Kh4 Ke4 76.Kh5 Kf4 77.Kh4 Qg4# -+ (-#31) Depth: 84/70 04:46:16 681270MN 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.g4 Bxg4 66.Kxg4 d3 67.Kg5 d2 68.h5 gxh5 69.Kxh5 d1Q+ 70.Kg6 Qf1 71.Kg5 Kc3 72.Kg4 Kd4 73.Kg3 Ke4 74.Kh2 Qe2+ 75.Kg3 Kf5 76.Kh3 Kf4 77.Kh4 Qh2# -+ (-#31) Depth: 85/70 05:16:16 751516MN 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.g4 Bxg4 66.Kxg4 d3 67.Kg5 d2 68.h5 gxh5 69.Kxh5 d1Q+ 70.Kg6 Qf1 71.Kg5 Kc3 72.Kg4 Kd4 73.Kg3 Ke4 74.Kh2 Qe2+ 75.Kg3 Kf5 76.Kh3 Kf4 77.Kh4 Qh2# -+ (-#31) Depth: 86/70 07:31:39 1077035MN 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.g4 Bxg4 66.Kxg4 d3 67.Kg5 d2 68.h5 gxh5 69.Kxh5 d1Q+ 70.Kg6 Qf1 71.Kg5 Kc3 72.Kg4 Kd4 73.Kg3 Ke4 74.Kh2 Qe2+ 75.Kg3 Kf5 76.Kh3 Kf4 77.Kh4 Qh2# -+ (-#31) Depth: 87/70 09:32:52 1371210MN 47...Bh3 48.Kh2 Bg4 49.Bb2 Kf5 50.Kg3 Ke4 51.Kf2 f5 52.Kg3 Bh5 53.Bc1 f4+ 54.Kf2 Bg4 55.Bb2 Kd3 56.Ke1 Kc2 57.Be5 a3 58.Bd6 a2 59.Be5 Kb1 60.Kd2 Bf5 61.Ke2 a1Q 62.Bxa1 Kxa1 63.Kf3 d4 64.Kxf4 Kb2 65.g4 Bxg4 66.Kxg4 d3 67.Kg5 d2 68.h5 gxh5 69.Kxh5 d1Q+ 70.Kg6 Qf1 71.Kg5 Kc3 72.Kg4 Kd4 73.Kg3 Ke4 74.Kh2 Qe2+ 75.Kg3 Kf5 76.Kh3 Kf4 77.Kh4 Qh2# -+ (-#31) Depth: 88/70 13:45:18 1982702MN
Would be great if Multi-PV is posted too so we will see all the +other+ winning
lines particularly Be4, which is stronger than the text move, as claimed by Lyudmil.
Because some are claiming Bh3 is the +only+ winning move, while others
claimed there are other better and +simpler+ winning lines other than Bh3.
Dvoretsky, one of the best chess author, and trainor of GM Yusupov
already claimed that Bh3 is the only winning move and all the others will draw. Would be nice to see strong engines confirming it.