Search found 38 matches

by Pafifi
Thu Feb 27, 2020 3:05 am
Forum: Computer Chess Club: General Topics
Topic: Can any engine independently solve this puzzle?
Replies: 8
Views: 1519

Can any engine independently solve this puzzle?

[FEN "6br/1KNp1n1r/2p2p2/P1ppRP2/1kP3pP/3PBB2/PN1P4/8 w - - 0 1"] 1. Bxc5+ Kxc5 2. d4+ Kxd4 3. Nb5+ Kxe5 4. Nd3+ Kxf5 5. Nd4+ Kg6 6. Nf4+ Kg7 7. Nf5+ Kf8 8. Ng6+ Ke8 9. Kc8 gxf3 10. a6 f2 11. a7 f1=Q 12. a8=N Qf4 13. Nc7+ Qxc7+ 14. Kxc7 dxc4 15. Kc8 c3 16. dxc3 c5 17. a4 d5 18. a5 c4 19. a6 d4 20. ...
by Pafifi
Mon Feb 17, 2020 5:30 am
Forum: Computer Chess Club: General Topics
Topic: Is white winning with a ~1.5 score, not growing?
Replies: 12
Views: 2480

Re: Is white winning with a ~1.5 score, not growing?

[FEN "1rb2r1k/3p1pp1/p3p2p/1p2P3/4q3/1N2B1R1/PPP1N1P1/2KR1B2 w - - 0 1"] 1. Nf4 Qxe5 2. Bd3 Bb7 3. Rh1 Qd6 4. Nh5 Rg8 5. Nc5 Rbc8 6. Bf4 Qxf4+ 7. Nxf4 Rxc5 This puzzle is from an EPD I found in our forum (so long ago that I forgot the URL). The best move given is Nf4 and I probed a few moves with s...
by Pafifi
Sun Feb 16, 2020 9:11 am
Forum: Computer Chess Club: General Topics
Topic: Is white winning with a ~1.5 score, not growing?
Replies: 12
Views: 2480

Is white winning with a ~1.5 score, not growing?

[FEN "1rb2r1k/3p1pp1/p3p2p/1p2P3/4q3/1N2B1R1/PPP1N1P1/2KR1B2 w - - 0 1"] 1. Nf4 Qxe5 2. Bd3 Bb7 3. Rh1 Qd6 4. Nh5 Rg8 5. Nc5 Rbc8 6. Bf4 Qxf4+ 7. Nxf4 Rxc5 This puzzle is from an EPD I found in our forum (so long ago that I forgot the URL). The best move given is Nf4 and I probed a few moves with s...
by Pafifi
Sat Feb 08, 2020 1:35 am
Forum: Computer Chess Club: General Topics
Topic: Is white really winning here?
Replies: 4
Views: 1121

Re: Is white really winning here?

My foolish friend admitted his mistake. This one shall be winning.
by Pafifi
Sun Feb 02, 2020 2:50 pm
Forum: Computer Chess Club: General Topics
Topic: Is white really winning here?
Replies: 4
Views: 1121

Is white really winning here?

[FEN "7k/8/7K/p1P1p1p1/P4n2/3rN1p1/5r2/3R2B1 w - - 0 1"] 1. Rxd3 Nxd3 2. Bxf2 Nxc5 3. Bg1 Kg8 A friend of mine designed a puzzle that was said to be very difficult. I used Stockfish and Sting SF to analyze for a long time only to get a draw. Can White really win? The given moves are hints that are ...
by Pafifi
Tue Dec 03, 2019 12:27 am
Forum: Computer Chess Club: General Topics
Topic: Sting SF 19
Replies: 17
Views: 4292

Re: Sting SF 19

Another issue is the resource usage. I run it on my Windows Server 2008, 24 cores, 160G RAM. Even I set hash to 131072, the taskmgr said Sting only allocated 8G RAM, and CPU does not keep on 100%, unlike stockfish Sting is based on the old version (2.1.1) of Stockfish. Indeed, Sting can use "only" ...
by Pafifi
Sun Dec 01, 2019 2:21 am
Forum: Computer Chess Club: General Topics
Topic: Sting SF 19
Replies: 17
Views: 4292

Re: Sting SF 19

Another issue is the resource usage. I run it on my Windows Server 2008, 24 cores, 160G RAM. Even I set hash to 131072, the taskmgr said Sting only allocated 8G RAM, and CPU does not keep on 100%, unlike stockfish
by Pafifi
Sat Nov 30, 2019 2:33 am
Forum: Computer Chess Club: General Topics
Topic: Sting SF 19
Replies: 17
Views: 4292

Re: Sting SF 19

I doubt if Sting SF is really getting stronger on solving puzzles.
n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - - 0 1
For this puzzle version 15 solved it in a few seconds, while this version spent minutes.