Search found 354 matches

by acase
Tue Aug 27, 2019 10:13 am
Forum: Computer Chess Club: General Topics
Topic: Test Position: Nikolic Fischer revisited 19...Bg4!!
Replies: 101
Views: 14759

Re: Test Position: Nikolic Fischer revisited 19...Bg4!!

Indeed, I can confirm that Stockfish does find Fischer's 19...Bg4!! after slightly less than an hour on my 20 core dual xeon (only using 19 cores) with 16GB hash table and the latest dev version of Stockfish r3r1k1/pp1q1p2/2p2npb/PPPp1bnp/3PpN2/2N1P1PP/1R1B1PBK/3Q1R2 b - - 0 1 Stockfish_19082608_x64...
by acase
Tue Aug 27, 2019 1:12 am
Forum: Computer Chess Club: General Topics
Topic: Test Position: Nikolic Fischer revisited 19...Bg4!!
Replies: 101
Views: 14759

Re: Test Position: Nikolic Fischer revisited 19...Bg4!!

Analysis on I9-7980 XE (18 core) computer for about 12 1/2 hours: Nikolic,E - Fischer,R 0-1, Vinkovci 1968 r3r1k1/pp1q1p2/2p2npb/PPPp1bnp/3PpN2/2N1P1PP/1R1B1PBK/3Q1R2 b - - 0 1 Analysis by Stockfish 220619 64 BMI2: 19...Bg4 20.Qb1 Nf3+ 21.Bxf3 Bxf3 22.a6 Bxf4 23.exf4 Ng4+ 24.Kg1 Nh6 25.Kh2 bxa6 26....
by acase
Thu Aug 22, 2019 12:00 am
Forum: Computer Chess Club: General Topics
Topic: Test Position: Nikolic Fischer revisited 19...Bg4!!
Replies: 101
Views: 14759

Re: Test Position: Nikolic Fischer revisited 19...Bg4!!

Is there some conclusion for this position now ? Eval from Stockfish_190726 (3 best moves) after Bg4!? with a bit of learning. [d]r3r1k1/pp1q1p2/2p2npb/PPPp2np/3PpNb1/2N1P1PP/1R1B1PBK/3Q1R2 w - - 1 20 Stockfish_19072603_x64_modern: ... 34/48 01:35 834 126 572 8 764 135 -1,81 20.Qc1 Nf3+ 21.Bxf3 exf...
by acase
Sat Aug 17, 2019 9:26 pm
Forum: Computer Chess Club: General Topics
Topic: Test Position: Nikolic Fischer revisited 19...Bg4!!
Replies: 101
Views: 14759

Re: Test Position: Nikolic Fischer revisited 19...Bg4!!

Looks like Cfish gets it wrong (for Black) with 27.Qc1 Rab8 28.Nd1? Nf5!? which of course wins, but the more forceful 28...Rxb2! is better which forces 29.Qxb2 (if 29.Nxb2 then 29...Qf6! wins quickly) followed by 29...Ng4+ It looks like an improvement for white instead of 28.Nd1? is to try 28.Be3. I...
by acase
Fri Aug 16, 2019 11:06 pm
Forum: Computer Chess Club: General Topics
Topic: Test Position: Nikolic Fischer revisited 19...Bg4!!
Replies: 101
Views: 14759

Re: Test Position: Nikolic Fischer revisited 19...Bg4!!

On the 27.Be3 Ng4+ line I have this from Stockfish: r3r1k1/p4p2/p1q3p1/2Pp3p/3PpPn1/2N1BbPP/1R3P1K/1Q3R2 w - - 2 28 63/114 19:11:45 1,993,635,318k 28,849k -5.20 28.Kh2-g1 Qc6-e6 29.h3-h4 Ng4xe3 30.f2xe3 Qe6-h3 31.Kg1-f2 Qh3-h2+ 32.Kf2-e1 Qh2xg3+ 33.Ke1-d2 Qg3-g2+ 34.Kd2-e1 Qg2-g4 35.Ke1-d2 Qg4xh4 36...
by acase
Thu Aug 15, 2019 9:48 pm
Forum: Computer Chess Club: General Topics
Topic: Test Position: Nikolic Fischer revisited 19...Bg4!!
Replies: 101
Views: 14759

Re: Test Position: Nikolic Fischer revisited 19...Bg4!!

Ok, lets start with the best move out of the 3 which is 20.Qb1, here is what I have so far: And your line seems to agree with what I recently posted: 20. Qb1 Nf3+ 21. Bxf3 Bxf3 22. a6 Ng4+ 23. Kg1 Bxf4 24. exf4 Nh6 25. Kh2 bxa6 26. bxc6 Qxc6 And we have r3r1k1/p4p2/p1q3pn/2Pp3p/3PpP2/2N2bPP/1R1B1P1...
by acase
Thu Aug 15, 2019 2:49 pm
Forum: Computer Chess Club: General Topics
Topic: Test Position: Nikolic Fischer revisited 19...Bg4!!
Replies: 101
Views: 14759

Re: Test Position: Nikolic Fischer revisited 19...Bg4!!

Is there some conclusion for this position now ? Eval from Stockfish_190726 (3 best moves) after Bg4!? with a bit of learning. [d]r3r1k1/pp1q1p2/2p2npb/PPPp2np/3PpNb1/2N1P1PP/1R1B1PBK/3Q1R2 w - - 1 20 Stockfish_19072603_x64_modern: ... 34/48 01:35 834 126 572 8 764 135 -1,81 20.Qc1 Nf3+ 21.Bxf3 exf...
by acase
Thu Aug 15, 2019 12:04 am
Forum: Computer Chess Club: General Topics
Topic: Test Position: Nikolic Fischer revisited 19...Bg4!!
Replies: 101
Views: 14759

Re: Test Position: Nikolic Fischer revisited 19...Bg4!!

Is there some conclusion for this position now ? Eval from Stockfish_190726 (3 best moves) after Bg4!? with a bit of learning. [d]r3r1k1/pp1q1p2/2p2npb/PPPp2np/3PpNb1/2N1P1PP/1R1B1PBK/3Q1R2 w - - 1 20 Stockfish_19072603_x64_modern: ... 34/48 01:35 834 126 572 8 764 135 -1,81 20.Qc1 Nf3+ 21.Bxf3 exf...
by acase
Sun May 19, 2019 10:10 am
Forum: Computer Chess Club: General Topics
Topic: SF Dev need 150s (2.5 min) to find Qh6
Replies: 15
Views: 2756

Re: SF Dev need 150s (2.5 min) to find Qh6

As further depth require more thinking time. Qh6 ain't considered until about 2 minutes and 30s of analysis time. 1b2k1q1/4ppPp/1pK5/3pP3/3P4/1P6/8/2Q5 w - - 0 1 Analysis by Stockfish 150519 64 BMI2: 1.Qh6 is winning. The position is equal: = (0.18 ++) Depth: 59/48 00:02:50 3083MN, tb=31436423 15.0...
by acase
Sun May 19, 2019 1:53 am
Forum: Computer Chess Club: General Topics
Topic: SF Dev need 150s (2.5 min) to find Qh6
Replies: 15
Views: 2756

Re: SF Dev need 150s (2.5 min) to find Qh6

As further depth require more thinking time. Qh6 ain't considered until about 2 minutes and 30s of analysis time. 1b2k1q1/4ppPp/1pK5/3pP3/3P4/1P6/8/2Q5 w - - 0 1 Analysis by Stockfish 150519 64 BMI2: 1.Qh6 is winning. The position is equal: = (0.18 ++) Depth: 59/48 00:02:50 3083MN, tb=31436423 15.0...