Search found 5085 matches

by zullil
Thu Apr 04, 2019 6:52 pm
Forum: Computer Chess Club: General Topics
Topic: Mate in 82?
Replies: 21
Views: 1271

Re: Mate in 82?

If anyone is interested, here's the mate in 82 that Komodo 12.3 found: [FEN "8/1p1p2p1/5p1p/5P1P/1p1p1P2/pP1P1P2/P1k1B3/4K3 w - -"] 1. Bf1 Kc1 2. Bh3 Kc2 3. Ke2 Kc1 4. Bg2 Kc2 5. Bf1 Kc3 6. Ke1 Kc2 7. Be2 Kb1 8. Kd2 Kb2 9. Bd1 Kb1 10. Bc2+ Kb2 11. Kd1 Ka1 12. Kc1 Kxa2 13. Bd1 Ka1 14. Be2 Ka2 15. Kc...
by zullil
Wed Apr 03, 2019 12:22 pm
Forum: Computer Chess Club: General Topics
Topic: A position that white might win
Replies: 8
Views: 390

Re: A position that white might win

Old Kaissa III would prefer 33...Kh8 instead of going to f8 and the score does not rise so much anymore. But it probably means not so much and also no tablebases were used. 2r3k1/2r2p1p/1p2p1p1/p2pP3/2q2P1P/2nN1N2/3Q2P1/2R1R1K1 w - - Engine: Kaissa III (512 MB) by T. Romstad, M. Costalba, J. Kiiski...
by zullil
Wed Apr 03, 2019 10:29 am
Forum: Computer Chess Club: General Topics
Topic: A position that white might win
Replies: 8
Views: 390

Re: A position that white might win

32.f5 is winning according stockfish dev. New game Line 2r3k1/2r2p1p/1p2p1p1/p2pP3/2q2P1P/2nN1N2/3Q2P1/2R1R1K1 w - - 0 1 Analysis by Stockfish 310319 64 BMI2: 32.f5 gxf5 33.Qg5+ Kf8 34.Nf4 b5 35.Kh2 b4 36.Nh5 Qg4 37.Qh6+ Ke7 38.Nf6 Qg6 39.Qe3 h5 40.Qb6 Kf8 41.Qd6+ Kg7 42.Ne8+ Rxe8 43.Qxc7 Ra8 44.Ng...
by zullil
Tue Mar 26, 2019 12:09 pm
Forum: Computer Chess Club: General Topics
Topic: SF misevaluates position, case #3095768
Replies: 3
Views: 329

Re: SF misevaluates position, case #3095768

2b5/8/p1p2pk1/P1Pp1p1p/1P1P1P2/3B1P1K/8/8 w - - 0 201 This is the final position from a game in a recently completed 40/40 test. The game was adjudicated as a draw on the 200th move. Hard to see how White could make progress here, yet recent SF dev builds give around +1.38 up to depth=90 with 6-men...
by zullil
Tue Mar 26, 2019 10:10 am
Forum: Computer Chess Club: General Topics
Topic: Revisiting g5 (Tough Tactical Test Position?)
Replies: 37
Views: 1527

Re: Revisiting g5 (Tough Tactical Test Position?)

A bit longer run, seems about like the others to me: Searching: r1bq2rk/2p4n/1p1p1npb/pN1Pp2p/1PP1Pp1P/P4N2/2BBQPP1/RR3K2 w - - 0 1 infinite: 0 time: 0 increment: 0 moves to go: 0 1 +1.00 00:00 7040 Kg1 2 +1.08 00:00 42223 bxa5 bxa5 3 +0.53 00:00 66639 bxa5 bxa5 c5 4 +0.42 00:00 106114 bxa5 bxa5 c5...
by zullil
Sun Mar 24, 2019 7:47 pm
Forum: Computer Chess Club: General Topics
Topic: Revisiting g5 (Tough Tactical Test Position?)
Replies: 37
Views: 1527

Re: Revisiting g5 (Tough Tactical Test Position?)

Hi Louis! -2.13 1... Rg8 2. Bd1 g5 3. hxg5 Nxg5 4. Qd3 Nf6 5. Nxg5 Rxg5 6. Bf3 Bg4 7. Kf1 Qd7 8. bxa5 bxa5 9. c5 h4 10. Ke2 Nxe4 11. Qxe4 Bf5 12. Qc4 e4 13. Bc3+ Kh7 14. Kd2 Rxg2 15. Bxe4 f3+ 16. Kd1 Re8 17. Nxd6 cxd6 18. Rb7 Qxb7 19. Bxf5+ Kg8 20. Be6+ Kf8 21. c6 Qh7 22. c7 Rg1+ 23. Be1 Qh8 24. Rb...
by zullil
Sun Mar 24, 2019 4:35 pm
Forum: Computer Chess Club: General Topics
Topic: Revisiting g5 (Tough Tactical Test Position?)
Replies: 37
Views: 1527

Re: Revisiting g5 (Tough Tactical Test Position?)

r1bq1r1k/2pn3n/1p1p2pb/pN1Pp2p/1PP1Pp1P/P4N2/2BBQPP1/RR4K1 b - - 0 1 Here's Cfish-dev searching from the root position with MultiPV = 2: -1.93 1... Rg8 2. bxa5 g5 3. Ne1 Ndf6 4. axb6 cxb6 5. Bb4 Bf8 6. Nf3 Bg4 7. Kf1 gxh4 8. Ke1 Qd7 9. Kd2 Ng5 10. Rb3 Rc8 11. Rh1 h3 12. gxh3 Bxf3 13. Rxf3 Nxf3+ 14....
by zullil
Sun Mar 24, 2019 10:22 am
Forum: Computer Chess Club: General Topics
Topic: Playing the endgame like a boss !!
Replies: 49
Views: 3250

Re: Playing the endgame like a boss !!

I reckon the best way to test this is against a correspondence chess opponent that is "out there to kill you" (not only punishing your mistakes, but also going into positions where it's very hard to find the best moves), in this environment (say, a critical position where 90% of engines suggest a l...
by zullil
Sat Mar 23, 2019 8:19 pm
Forum: Computer Chess Club: General Topics
Topic: Revisiting g5 (Tough Tactical Test Position?)
Replies: 37
Views: 1527

Re: Revisiting g5 (Tough Tactical Test Position?)

r1bq1r1k/2pn3n/1p1p2pb/pN1Pp2p/1PP1Pp1P/P4N2/2BBQPP1/RR4K1 b - - 0 1 Here's Cfish-dev searching from the root position with MultiPV = 2: -1.93 1... Rg8 2. bxa5 g5 3. Ne1 Ndf6 4. axb6 cxb6 5. Bb4 Bf8 6. Nf3 Bg4 7. Kf1 gxh4 8. Ke1 Qd7 9. Kd2 Ng5 10. Rb3 Rc8 11. Rh1 h3 12. gxh3 Bxf3 13. Rxf3 Nxf3+ 14....