This is Y. Gusev -- E. Auerbach, Chelyabinsk 1946. Extensively discussed here in the past. My latest post linking to (nearly) exhaustive analysis proving a White win in all critical lines is here (thank you, Eelco).
reflectionofpower wrote:
My human instinct is to play Qd5. This threatens mate and Rxe6 is forced. Qxe6 is a complete loss with Qd8+. It's outcome is a draw unless you were a human someone makes an error.
Your instinct is wrong. Neither is 24...Rxe6 forced, 24...Rc5 is the simplest. Admittedly, a power move like 24.Qxe5 is far from easy to spot.
Rc5?? loses to Qb7, mate in 10
something is screwed up. It keeps telling me in the original thread connection reset??? it will nOT let submit??
Hardest position I know
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reflectionofpower
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Hardest position I know
"Without change, something sleeps inside us, and seldom awakens. The sleeper must awaken." (Dune - 1984)
Lonnie
Lonnie
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BBauer
- Posts: 658
- Joined: Wed Mar 08, 2006 8:58 pm
Re: Hardest position I know
what about posting the position?
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Dann Corbit
- Posts: 12541
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- Location: Redmond, WA USA
Re: Hardest position I know
[d]4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - fmvn 24; hmvc 1; pm Qxe5;
[pgn]
[Event "Molniya Sporting Society"]
[Site "Chelyabinsk RUS"]
[Date "1946.??.??"]
[EventDate "?"]
[Round "5"]
[Result "1-0"]
[White "Yuri S Gusev"]
[Black "E Auerbach"]
[ECO "B72"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "73"]
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Nc6 7.Nb3
Bg7 8.O-O Be6 9.f4 Rc8 10.f5 Bd7 11.g4 Ne5 12.g5 Ng8 13.Nd5 f6
14.Be3 b6 15.Nd4 Kf7 16.c3 Qe8 17.Ne6 Bxe6 18.fxe6+ Kf8
19.Nxf6 Nxf6 20.gxf6 Bxf6 21.Bh6+ Kg8 22.Rxf6 exf6 23.Qxd6 Rc6
24.Qxe5 fxe5 25.Rf1 Rc8 26.Bd1 Rc4 27.Bb3 b5 28.Bxc4 bxc4
29.b3 a5 30.bxc4 Qe7 31.Kg2 Qa3 32.Rf2 Qe7 33.Rf1 g5 34.Rf5 g4
35.c5 Qd8 36.c6 Qe7 37.c7 1-0
[/pgn]
[pgn]
[Event "Molniya Sporting Society"]
[Site "Chelyabinsk RUS"]
[Date "1946.??.??"]
[EventDate "?"]
[Round "5"]
[Result "1-0"]
[White "Yuri S Gusev"]
[Black "E Auerbach"]
[ECO "B72"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "73"]
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Nc6 7.Nb3
Bg7 8.O-O Be6 9.f4 Rc8 10.f5 Bd7 11.g4 Ne5 12.g5 Ng8 13.Nd5 f6
14.Be3 b6 15.Nd4 Kf7 16.c3 Qe8 17.Ne6 Bxe6 18.fxe6+ Kf8
19.Nxf6 Nxf6 20.gxf6 Bxf6 21.Bh6+ Kg8 22.Rxf6 exf6 23.Qxd6 Rc6
24.Qxe5 fxe5 25.Rf1 Rc8 26.Bd1 Rc4 27.Bb3 b5 28.Bxc4 bxc4
29.b3 a5 30.bxc4 Qe7 31.Kg2 Qa3 32.Rf2 Qe7 33.Rf1 g5 34.Rf5 g4
35.c5 Qd8 36.c6 Qe7 37.c7 1-0
[/pgn]
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.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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peter
- Posts: 3186
- Joined: Sat Feb 16, 2008 7:38 am
- Full name: Peter Martan
Re: Hardest position I know
What exactly were your new findings, Lonnie?
Depth 40 after some Forward- Backward:
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1
Analysis by CiChess 2.2 110418 x64 POP N:
1. +- (6.52): 24.Qxe5 fxe5 25.Rf1 Qd8 26.Bd1 Qxd1 27.Rxd1 Rxe6 28.Rd8+ Kf7 29.Rxh8 g5 30.Rxh7+ Kg8 31.Rg7+ Kh8 32.Rxa7 Rxh6 33.Re7 g4 34.Rxe5 Kg7 35.Rb5 Re6 36.Kf2 Rxe4 37.Rxb6 Ra4 38.a3 Kf7 39.Kg3 Ra8 40.Kxg4 Rg8+ 41.Kf5 Rg1 42.a4 Rf1+ 43.Kg4 Rg1+ 44.Kf3 Rf1+ 45.Kg3 Ra1 46.Rb4 Ra2 47.Kg4 Ra1 48.h4 Kf8 49.Kg3 Rg1+ 50.Kf2 Ra1 51.Kg2 Ra2 52.Kg3 Ke7 53.Kf4
2. = (0.00): 24.Qa3 Rxe6 25.Qxa7 Qe7 26.Qb8+ Qe8 27.Qc7 Qe7 28.Qb8+
Depth 40 after some Forward- Backward:
4q1kr/p6p/1prQPppB/4n3/4P3/2P5/PP2B2P/R5K1 w - - 0 1
Analysis by CiChess 2.2 110418 x64 POP N:
1. +- (6.52): 24.Qxe5 fxe5 25.Rf1 Qd8 26.Bd1 Qxd1 27.Rxd1 Rxe6 28.Rd8+ Kf7 29.Rxh8 g5 30.Rxh7+ Kg8 31.Rg7+ Kh8 32.Rxa7 Rxh6 33.Re7 g4 34.Rxe5 Kg7 35.Rb5 Re6 36.Kf2 Rxe4 37.Rxb6 Ra4 38.a3 Kf7 39.Kg3 Ra8 40.Kxg4 Rg8+ 41.Kf5 Rg1 42.a4 Rf1+ 43.Kg4 Rg1+ 44.Kf3 Rf1+ 45.Kg3 Ra1 46.Rb4 Ra2 47.Kg4 Ra1 48.h4 Kf8 49.Kg3 Rg1+ 50.Kf2 Ra1 51.Kg2 Ra2 52.Kg3 Ke7 53.Kf4
2. = (0.00): 24.Qa3 Rxe6 25.Qxa7 Qe7 26.Qb8+ Qe8 27.Qc7 Qe7 28.Qb8+
Peter.
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Dann Corbit
- Posts: 12541
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Re: Hardest position I know
At this position, Black plays Rc4 instead of Qxd1:
[d]3q2kr/p6p/1pr1P1pB/4p3/4P3/2P5/PP5P/3B1RK1 b - - acd 62; acs 60; bm Rc4; c3 "Qxd1"; ce 0; pm Rc4; pv Rc4 Bb3 b5 Bxc4 bxc4 Rf7 Qd1+ Rf1 Qg4+ Kh1 Qxe4+ Kg1 Qg4+ Kh1 Qe4+;
[d]3q2kr/p6p/1pr1P1pB/4p3/4P3/2P5/PP5P/3B1RK1 b - - acd 62; acs 60; bm Rc4; c3 "Qxd1"; ce 0; pm Rc4; pv Rc4 Bb3 b5 Bxc4 bxc4 Rf7 Qd1+ Rf1 Qg4+ Kh1 Qxe4+ Kg1 Qg4+ Kh1 Qe4+;
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.
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: 12541
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: Hardest position I know
Seems I did not let it think long enough.
White follows that move with a4
White follows that move with a4
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.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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Paloma
- Posts: 1167
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- Full name: Herbert L
Re: Hardest position I know
Your pv is wrong.Dann Corbit wrote:At this position, Black plays Rc4 instead of Qxd1:
[d]3q2kr/p6p/1pr1P1pB/4p3/4P3/2P5/PP5P/3B1RK1 b - - acd 62; acs 60; bm Rc4; c3 "Qxd1"; ce 0; pm Rc4; pv Rc4 Bb3 b5 Bxc4 bxc4 Rf7 Qd1+ Rf1 Qg4+ Kh1 Qxe4+ Kg1 Qg4+ Kh1 Qe4+;
pv Rc4 Bb3 b5 Bxc4? (better is a4 a6, Ba2 Qe7, b4 Qa7, Rf2 g5, Kf1 Qg7, Bxg7 and white wins)