I of course may be wrong also, but I think Stockfish maybe found a drawing resource in a position that was thought to be a win for white after 1.Rxc3!! but Stockfish likes the line 1...Qa1 2.Kd6 and then 2...Bxc3! instead of 2...Qd1+?. I appended the PGN with possible continuations. If I am wrong or you find possible improvements for white please let me know.
Here is the appended PGN:
[pgn][Event "Studie 2001"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Weiss gewinnt"]
[Black "Gerhard Josten"]
[Result "*"]
[TimeControl "0"]
[SetUp "1"]
[FEN "7k/pp1pBp1N/1p3Pp1/b3K1PR/P3P2p/R1n4P/2P1N1P1/3q4 w - - 0 1"]
[Termination "normal"]
[PlyCount "15"]
[WhiteType "human"]
[BlackType "human"]
1. Rxc3 $3 (1. Nf8+ $2 gxh5 2. Nxc3 Qd2 $11) 1. .. d6+ (1. .. Bxc3+ 2. Nxc3
Qxh5 (2. .. Qe1 3. Nf8+ gxh5 4. Nd5 $18) 3. Bf8 Qxh7 (3. .. Kxh7 4. Bh6
$18) 4. Bg7+ Kg8 5. Kd5 $18) (1. .. Qa1! 2. Kd6 (2. Kd4 Qd1+ 3. Rd3 Qxe2 4.
Rh6 Kg8 5. Nf8 d6 6. Bxd6 Qf2+ 7. Ke5 Qxg2 8. Ne6 b5 9. c3 Qc2 10. Rxg6+
fxg6 11. f7+ Kxf7 12. Rf3+ Kg8 13. Rf8+ Kh7 14. Kf6 Qxe4 15. Rf7+ Kh8 16.
Rf8+ Kh7 17. Ke7 Qd5 18. Rf7+ Kh8 19. Rf8+ Kh7 20. Rf7+ Kh8 21. c4 bxc4 22.
Rf8+ Kh7 23. Rf7+ Kh8 24. Rf8+ Kh7 25. Rf6 Bd2 26. Rf7+ Kg8 27. Rf8+ Kh7
28. Rf7+ Kh8 29. Rf8+ Kh7 30. Rf7+ {3-fold repetition}) 2. .. Qd1+ (2. ..
Bxc3! 3. Kc7 Ba5 4. Rh6 Qe5+ 5. Kxd7 Qe6+ 6. Kc7 Qe5+ 7. Kd7 Qe6+ 8. Kc7
Qe5+ 9. Kd7 {3-fold repetition}) 3. Kc7 $18) 2. Bxd6 Qa1 3. Kd4 Qd1+ 4. Ke5
Qa1 5. Nf8+ gxh5 6. Kd4 Bxc3+ 7. Nxc3 Kg8 8. g6 $18 *
[/pgn]
I think one of the engine crackers MIGHT be a bust/cook
Moderator: Ras
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acase
- Posts: 1001
- Joined: Wed Mar 15, 2006 1:14 am
- Location: Columbus, Ohio USA
- Full name: Andrew R Case
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acase
- Posts: 1001
- Joined: Wed Mar 15, 2006 1:14 am
- Location: Columbus, Ohio USA
- Full name: Andrew R Case
Re: I think one of the engine crackers MIGHT be a bust/cook
It looks like I am WRONG as I have already found improvements for white with engine assistance, so 1...Qa1 loses just as quickly as any other line does. 
I think I ssuffered a little bit of enginitis relying too much on Stockfish's evaluation, I should have been a little more careful before I posted.
I think I ssuffered a little bit of enginitis relying too much on Stockfish's evaluation, I should have been a little more careful before I posted.
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MOBMAT
- Posts: 402
- Joined: Sat Feb 04, 2017 11:57 pm
- Location: USA
Re: I think one of the engine crackers MIGHT be a bust/cook
I think I can speak for a lot of people who would appreciate it when, positions are posted, please include a FEN.
Or is it hiding in plain site?
Vince
Or is it hiding in plain site?
Vince
i7-6700K @ 4.00Ghz 32Gb, Win 10 Home, EGTBs on PCI SSD
Benchmark: Stockfish15.1 NNUE x64 bmi2 (nps): 1277K
Benchmark: Stockfish15.1 NNUE x64 bmi2 (nps): 1277K
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Guenther
- Posts: 4718
- Joined: Wed Oct 01, 2008 6:33 am
- Location: Regensburg, Germany
- Full name: Guenther Simon
Re: I think one of the engine crackers MIGHT be a bust/cook
Well how long are you member here?
Just click on the b8 square... if you need more help about the pgn features click on h8.
There is also a mouseover text on the pgn diagram squares for their additional features.