Add this one to your collection, a nice study that I found that I don't think has been posted before by T.Gorgiev, Shakhmaty v S. S. S. R. , 7/64. This seems to stump the engines I have tried (including The Huntsman 1) with the exception of all the Crystal versions.
[pgn][Event "T.Gorgiev, Shakhmaty v S. S. S. R. , 7/64."]
[Site "Columbus, Ohio"]
[Date "2023.04.06"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[Time "13:09:06"]
[TimeControl "0"]
[SetUp "1"]
[FEN "nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - 0 1"]
[Termination "normal"]
[PlyCount "23"]
[WhiteType "human"]
[BlackType "human"]
1. Qf7+ {+M12/38 25 Crystal_.bmi2} Kxf7 2. Ng5+ Kf8 3. Ne5 Bg8+ 4. Kh8 Rb7
5. a6 Ra7 6. b5 Rc7 7. d3 Ra7 8. d4 Rc7 9. d5 Ra7 10. d6 Rc7 11. dxc7 Bxc7
12. Nd7# 1-0[/pgn]
A nice Mate in 12 study
Moderator: Ras
-
acase
- Posts: 1004
- Joined: Wed Mar 15, 2006 1:14 am
- Location: Columbus, Ohio USA
- Full name: Andrew R Case
-
peter
- Posts: 3592
- Joined: Sat Feb 16, 2008 7:38 am
- Full name: Peter Martan
Re: A nice Mate in 12 study
Sting at a single try (a second one was not quite as fast but also about as that as for best move and winning eval, just DTM took some longer) with 30 threads of 16x3.5GHz CPU and 8G hash:
1483: Gorgiev=T - (+1668.33h7e6) 1-0 0.0, 3.c Shakhmaty v SSSR#28 1964
nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - 0 1
Analysis by Sting Black Hole 4 (based on Stockfish 2.1.1) 64bit:
Code: Select all
1.Sg5+ Kd7
Schwarz hat entscheidenden Vorteil: -+ (-3.43) Tiefe: 1 00:00:01 1092Knoten
...
1.Sg5+ Kd7 2.Se5+ Kc8 3.Sxc4 Lc7 4.a6 Sf5 5.Kxg6 Tf8 6.Sf7 Se7+ 7.Kh7 b5 8.Df3 Txf7 9.Dxf7 Kd7 10.a7 Tb7 11.Sa3
Die Stellung ist ausgeglichen: = (0.00 ++) Tiefe: 15 00:00:02 11300kN
...
1.Sg5+ Kd6 2.Df4+ Kc6 3.Dxb8 Lg8+ 4.Kxg7 Kb5 5.Dxa8 Sc6 6.Kxg6 Ld5 7.Kh7 Lg8+ 8.Kg6
Die Stellung ist ausgeglichen: = (0.00) Tiefe: 21 00:00:17 299MN
1.Df7+
Die Stellung ist ausgeglichen: = (0.08 ++) Tiefe: 22 00:00:18 308MN
1.Df7+
Die Stellung ist ausgeglichen: = (0.16 ++) Tiefe: 22 00:00:18 308MN
1.Df7+
Weiß hat minimalen Vorteil: = (0.28 ++) Tiefe: 22 00:00:18 308MN
...
1.Df7+
Weiß steht deutlich besser: +- (1.75 ++) Tiefe: 22 00:00:18 308MN
1.Df7+
Weiß hat entscheidenden Vorteil: +- (2.67 ++) Tiefe: 22 00:00:18 309MN
...
1.Df7+
Weiß steht klar auf Gewinn: +- (31.11 ++) Tiefe: 22 00:00:18 314MN
1.Df7+
Weiß setzt Matt: +- (#15 ++) Tiefe: 22 00:00:18 314MN
1.Df7+
Weiß setzt Matt: +- (#15 ++) Tiefe: 22 00:00:18 314MN
1.Df7+ Kxf7 2.Sg5+ Kf8 3.Se5 Lg8+ 4.Kh8 Tb7 5.a6 Ta7 6.b5 Tc7 7.d3 Ta7 8.d4 Tc7 9.d5 Ta7 10.d6 Tb7 11.axb7 Sf5 12.Sxg6#
Weiß setzt Matt: +- (#12) Tiefe: 23 00:00:18 315MN
...
1.Df7+ Kxf7 2.Sg5+ Kf8 3.Se5 Lg8+ 4.Kh8 Tb7 5.a6 Ta7 6.b5 Tc7 7.d3 Ta7 8.d4 Tc7 9.d5 Ta7 10.d6 Tb7 11.axb7 Sf5 12.Sxg6#
Weiß setzt Matt: +- (#12) Tiefe: 41 00:01:18 1581MN
Peter.
-
acase
- Posts: 1004
- Joined: Wed Mar 15, 2006 1:14 am
- Location: Columbus, Ohio USA
- Full name: Andrew R Case
Re: A nice Mate in 12 study
Sting also nails this mate in 13 as well as Shashchess and The Huntsman 1 that a lot of engines have trouble with:peter wrote: ↑Fri Apr 07, 2023 12:14 amSting at a single try (a second one was not quite as fast but also about as that as for best move and winning eval, just DTM took some longer) with 30 threads of 16x3.5GHz CPU and 8G hash:
1483: Gorgiev=T - (+1668.33h7e6) 1-0 0.0, 3.c Shakhmaty v SSSR#28 1964
nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - 0 1
Analysis by Sting Black Hole 4 (based on Stockfish 2.1.1) 64bit:
Code: Select all
1.Sg5+ Kd7 Schwarz hat entscheidenden Vorteil: -+ (-3.43) Tiefe: 1 00:00:01 1092Knoten ... 1.Sg5+ Kd7 2.Se5+ Kc8 3.Sxc4 Lc7 4.a6 Sf5 5.Kxg6 Tf8 6.Sf7 Se7+ 7.Kh7 b5 8.Df3 Txf7 9.Dxf7 Kd7 10.a7 Tb7 11.Sa3 Die Stellung ist ausgeglichen: = (0.00 ++) Tiefe: 15 00:00:02 11300kN ... 1.Sg5+ Kd6 2.Df4+ Kc6 3.Dxb8 Lg8+ 4.Kxg7 Kb5 5.Dxa8 Sc6 6.Kxg6 Ld5 7.Kh7 Lg8+ 8.Kg6 Die Stellung ist ausgeglichen: = (0.00) Tiefe: 21 00:00:17 299MN 1.Df7+ Die Stellung ist ausgeglichen: = (0.08 ++) Tiefe: 22 00:00:18 308MN 1.Df7+ Die Stellung ist ausgeglichen: = (0.16 ++) Tiefe: 22 00:00:18 308MN 1.Df7+ Weiß hat minimalen Vorteil: = (0.28 ++) Tiefe: 22 00:00:18 308MN ... 1.Df7+ Weiß steht deutlich besser: +- (1.75 ++) Tiefe: 22 00:00:18 308MN 1.Df7+ Weiß hat entscheidenden Vorteil: +- (2.67 ++) Tiefe: 22 00:00:18 309MN ... 1.Df7+ Weiß steht klar auf Gewinn: +- (31.11 ++) Tiefe: 22 00:00:18 314MN 1.Df7+ Weiß setzt Matt: +- (#15 ++) Tiefe: 22 00:00:18 314MN 1.Df7+ Weiß setzt Matt: +- (#15 ++) Tiefe: 22 00:00:18 314MN 1.Df7+ Kxf7 2.Sg5+ Kf8 3.Se5 Lg8+ 4.Kh8 Tb7 5.a6 Ta7 6.b5 Tc7 7.d3 Ta7 8.d4 Tc7 9.d5 Ta7 10.d6 Tb7 11.axb7 Sf5 12.Sxg6# Weiß setzt Matt: +- (#12) Tiefe: 23 00:00:18 315MN ... 1.Df7+ Kxf7 2.Sg5+ Kf8 3.Se5 Lg8+ 4.Kh8 Tb7 5.a6 Ta7 6.b5 Tc7 7.d3 Ta7 8.d4 Tc7 9.d5 Ta7 10.d6 Tb7 11.axb7 Sf5 12.Sxg6# Weiß setzt Matt: +- (#12) Tiefe: 41 00:01:18 1581MN
V. Korolkov FIDE IV ty 1965
[pgn][Event "V. Korolkov FIDE IV ty 1965"]
[Site "Columbus, Ohio"]
[Date "2023.04.06"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[Time "17:44:13"]
[TimeControl "0"]
[SetUp "1"]
[FEN "8/8/8/6pQ/2p3p1/4p2r/2pbpN1B/3bk1K1 w - - 0 1"]
[Termination "normal"]
[PlyCount "25"]
[WhiteType "program"]
[BlackType "program"]
1. Nd3+ {+M13/25 69 Sting-sf-bh-4} cxd3 2. Qxh3 Bc1 3. Qg3+ Kd2 4. Qe1+
Kxe1 5. Bc7 g3 6. Kg2 g4 7. Kg1 g2 8. Bd8 g3 9. Bc7 Ba3 10. Ba5+ d2 11. Bc7
Bd6 12. Bxd6 c1=Q 13. Bxg3# 1-0[/pgn]
-
peter
- Posts: 3592
- Joined: Sat Feb 16, 2008 7:38 am
- Full name: Peter Martan
Re: A nice Mate in 12 study
55319: Korolkov=V - (+1371.06g1e1) 1-0 0.0, 1.hm FIDE ty 1965acase wrote: ↑Fri Apr 07, 2023 1:19 am Sting also nails this mate in 13 as well as Shashchess and The Huntsman 1 that a lot of engines have trouble with:
V. Korolkov FIDE IV ty 1965
[pgn][Event "V. Korolkov FIDE IV ty 1965"]
[Site "Columbus, Ohio"]
[Date "2023.04.06"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[Time "17:44:13"]
[TimeControl "0"]
[SetUp "1"]
[FEN "8/8/8/6pQ/2p3p1/4p2r/2pbpN1B/3bk1K1 w - - 0 1"]
[Termination "normal"]
[PlyCount "25"]
[WhiteType "program"]
[BlackType "program"]
1. Nd3+ {+M13/25 69 Sting-sf-bh-4} cxd3 2. Qxh3 Bc1 3. Qg3+ Kd2 4. Qe1+
Kxe1 5. Bc7 g3 6. Kg2 g4 7. Kg1 g2 8. Bd8 g3 9. Bc7 Ba3 10. Ba5+ d2 11. Bc7
Bd6 12. Bxd6 c1=Q 13. Bxg3# 1-0[/pgn]
8/8/8/6pQ/2p3p1/4p2r/2pbpN1B/3bk1K1 w - - 0 1
Analysis by Lc0 v0.30.0-dag+git.77382b9c:
Code: Select all
1.Nxh3 Bc3
Black is clearly winning: -+ (-4.32) Depth: 1/2 00:00:02 2Nodes
...
h3 7.Be1 Ba3 8.Kh2
Black is better: -/+ (-1.09) Depth: 8/17 00:00:02 215Nodes
1.Nd3+ cxd3 2.Qxh3 Bc1 3.Qxg4 Ba3 4.Qxg5 Kd2 5.Qa5+ Kc1 6.Qxa3+ Kb1 7.Qb4+ Ka2 8.Qc4+ Kb1 9.Qb3+ Kc1
White is slightly better: +/= (0.31) Depth: 8/18 00:00:02 237Nodes
...
1.Nd3+ cxd3 2.Qxh3 Bc1 3.Qxg4 Ba3 4.Qf5 Kd2 5.Qa5+ Kc1 6.Qxa3+ Kb1 7.Qb4+ Ka2 8.Qc4+ Kb1 9.Qb3+ Kc1 10.Bg3 d2 11.Qxe3 Kb1 12.Qb3+ Kc1 13.Qa3+ Kb1 14.Qb4+ Kc1 15.Qa5 e1Q+ 16.Bxe1 dxe1Q+ 17.Qxe1
The position is equal: = (-0.03) Depth: 29/83 00:00:22 357kN, tb=2454
1.Nd3+ cxd3 2.Qxh3 Bc1 3.Qg3+ Kd2 4.Qe1+ Kxe1 5.Bc7 g3 6.Kg2 g4 7.Kg1 g2 8.Kxg2 g3 9.Kg1 g2 10.Kxg2 Bb2 11.Ba5+ d2 12.Bc7 Be5 13.Bxe5 c1Q 14.Bg3#
White mates: +- (#14) Depth: 29/83 00:00:26 450kN, tb=3149
1.Nd3+ cxd3 2.Qxh3 Bc1 3.Qg3+ Kd2 4.Qe1+ Kxe1 5.Bc7 g3 6.Kg2 g4 7.Kg1 g2 8.Kxg2 g3 9.Kg1 g2 10.Kxg2 Bb2 11.Ba5+ d2 12.Bc7 Be5 13.Bxe5 c1Q ...
1.Nd3+ cxd3 2.Qxh3 Bc1 3.Qg3+ Kd2 4.Qe1+ Kxe1 5.Bc7 g3 6.Kg2 g4 7.Kg1 g2 8.Kxg2 g3 9.Kg1 g2 10.Kxg2 Bb2 11.Ba5+ d2 12.Bc7 Be5 13.Bxe5 c1Q 14.Bg3#
White mates: +- (#14) Depth: 29/83 00:00:50 20292kN, tb=3175
Gave it two more trials, all about as fast as this one with 3070ti Nvidia GPU, NN BT2-3650M, 8G NN-cache and 6men Syzygys, regards
Peter.
-
Ajedrecista
- Posts: 2242
- Joined: Wed Jul 13, 2011 9:04 pm
- Location: Madrid, Spain.
Re: A nice mate in 12 study.
Hello Andrew:
Regards from Spain.
Ajedrecista.
Chest 5.2 did a fantastic job on this one:acase wrote: ↑Thu Apr 06, 2023 8:01 pm Add this one to your collection, a nice study that I found that I don't think has been posted before by T.Gorgiev, Shakhmaty v S. S. S. R. , 7/64. This seems to stump the engines I have tried (including The Huntsman 1) with the exception of all the Crystal versions.
[pgn][Event "T.Gorgiev, Shakhmaty v S. S. S. R. , 7/64."]
[Site "Columbus, Ohio"]
[Date "2023.04.06"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[Time "13:09:06"]
[TimeControl "0"]
[SetUp "1"]
[FEN "nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - 0 1"]
[Termination "normal"]
[PlyCount "23"]
[WhiteType "human"]
[BlackType "human"]
1. Qf7+ {+M12/38 25 Crystal_.bmi2} Kxf7 2. Ng5+ Kf8 3. Ne5 Bg8+ 4. Kh8 Rb7
5. a6 Ra7 6. b5 Rc7 7. d3 Ra7 8. d4 Rc7 9. d5 Ra7 10. d6 Rc7 11. dxc7 Bxc7
12. Nd7# 1-0[/pgn]
Code: Select all
FEN: nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - 0 1
ChestUCI:
FEN: nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - (7+10)
Stellungs-Analyse: C0/R0/K3/P9/X25 W:7/35
Suche nach Spezial-Matt [C0/R0/K3/P9/X25] in 12 ... (Hash=64MB)
12 00:02 314.056 773.536 +M12 Qf2f7+
Suche abgeschlossen ... (Zeit=2.84s)
Matt in 12 gefunden ! (1 Lösung in 00:02)
12/12 00:02 2.350.915 826.913 +M12 Qf2f7+ Ke6xf7 Ne4g5+ Kf7f8 Ng4e5 Bc4g8+ Kh7h8 Rb8b7 a5a6 Rb7a7 b4b5 Ra7c7 d2d3 Rc7a7 d3d4 Ra7c7 d4d5 Rc7a7 d5d6 Ra7b7 a6xb7 Ne7c8 Ne5xg6+Ajedrecista.
-
Joerg Oster
- Posts: 994
- Joined: Fri Mar 10, 2006 4:29 pm
- Location: Germany
- Full name: Jörg Oster
Re: A nice mate in 12 study.
Yes, Chest is simply outstanding!Ajedrecista wrote: ↑Fri Apr 07, 2023 1:32 pm Hello Andrew:
Chest 5.2 did a fantastic job on this one:acase wrote: ↑Thu Apr 06, 2023 8:01 pm Add this one to your collection, a nice study that I found that I don't think has been posted before by T.Gorgiev, Shakhmaty v S. S. S. R. , 7/64. This seems to stump the engines I have tried (including The Huntsman 1) with the exception of all the Crystal versions.
[pgn][Event "T.Gorgiev, Shakhmaty v S. S. S. R. , 7/64."]
[Site "Columbus, Ohio"]
[Date "2023.04.06"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[Time "13:09:06"]
[TimeControl "0"]
[SetUp "1"]
[FEN "nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - 0 1"]
[Termination "normal"]
[PlyCount "23"]
[WhiteType "human"]
[BlackType "human"]
1. Qf7+ {+M12/38 25 Crystal_.bmi2} Kxf7 2. Ng5+ Kf8 3. Ne5 Bg8+ 4. Kh8 Rb7
5. a6 Ra7 6. b5 Rc7 7. d3 Ra7 8. d4 Rc7 9. d5 Ra7 10. d6 Rc7 11. dxc7 Bxc7
12. Nd7# 1-0[/pgn]
Regards from Spain.Code: Select all
FEN: nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - 0 1 ChestUCI: FEN: nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - (7+10) Stellungs-Analyse: C0/R0/K3/P9/X25 W:7/35 Suche nach Spezial-Matt [C0/R0/K3/P9/X25] in 12 ... (Hash=64MB) 12 00:02 314.056 773.536 +M12 Qf2f7+ Suche abgeschlossen ... (Zeit=2.84s) Matt in 12 gefunden ! (1 Lösung in 00:02) 12/12 00:02 2.350.915 826.913 +M12 Qf2f7+ Ke6xf7 Ne4g5+ Kf7f8 Ng4e5 Bc4g8+ Kh7h8 Rb8b7 a5a6 Rb7a7 b4b5 Ra7c7 d2d3 Rc7a7 d3d4 Ra7c7 d4d5 Rc7a7 d5d6 Ra7b7 a6xb7 Ne7c8 Ne5xg6+
Ajedrecista.
Matefish (development version) with 4 Threads and KingMoves set to 2 takes 37 seconds,
which is not too bad, either!
Code: Select all
info string Success! Mate in 12 found!
info depth 21 seldepth 23 multipv 1 score mate 12 nodes 261166704 nps 7106576 tbhits 0 time 36750 pv f2f7 e6f7 e4g5 f7f8 g4e5 c4g8 h7h8 b8b7 a5a6 b7c7 b4b5 c7a7 d2d4 a7c7 d4d5 c7b7 a6b7 g8f7 g5e6 f7e6 d5e6 e7d5 e5g6
bestmove f2f7 ponder e6f7Jörg Oster
-
F.Huber
- Posts: 875
- Joined: Thu Mar 09, 2006 4:50 pm
- Location: Austria
- Full name: Franz Huber
Re: A nice mate in 12 study.
Hi,
nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - bm #12; 00:00 @ C0/R0/K3/P6/X24;
And also the other #13 in this thread is solved:
8/8/8/6pQ/2p3p1/4p2r/2pbpN1B/3bk1K1 w - - bm #13; 00:00 @ C2/R0/K2/P4/X16;
But the AutoTurbo mode needs a few minutes to find these parameters, it's faster if you set KingSquares=2 before.
Regards,
Franz
with the optimal parameter set (C0/R0/K3/P6/X24, found with AutoTurbo mode) it's even faster:
nr1br3/4n1pK/1p2k1p1/P7/1Pb1N1N1/8/3P1Q2/8 w - - bm #12; 00:00 @ C0/R0/K3/P6/X24;
And also the other #13 in this thread is solved:
8/8/8/6pQ/2p3p1/4p2r/2pbpN1B/3bk1K1 w - - bm #13; 00:00 @ C2/R0/K2/P4/X16;
But the AutoTurbo mode needs a few minutes to find these parameters, it's faster if you set KingSquares=2 before.
Regards,
Franz