Search found 37 matches

by fishpov
Sat Mar 30, 2019 1:37 am
Forum: Computer Chess Club: General Topics
Topic: ThothFishv1.0
Replies: 10
Views: 3570

Re: ThothFishv1.0

Is it possible to have this engine but not in POPCNT because my computer is old.
Thanks.
by fishpov
Fri Feb 15, 2019 11:16 pm
Forum: Computer Chess Club: General Topics
Topic: Sting Sf 13
Replies: 17
Views: 3481

Re: Sting Sf 13

3k4/1p3b2/1Pp3p1/2Pp1p2/3P1P2/8/4K1N1/8 w - - 0 1 I have created this position to look at engine behavior White to play : Houdini 6 and Stockfish 10 have after one hour respectively +0.18 and +0.15 for white . It seems like draw evaluation Sting SF 13 has strange evaluation : Analysis by Sting 13 b...
by fishpov
Tue Feb 05, 2019 11:55 pm
Forum: Computer Chess Club: General Topics
Topic: Sting Sf 13
Replies: 17
Views: 3481

Re: Sting Sf 13

8/p6p/4P2p/p3K1pP/pPk5/p2r2p1/P5R1/8 w - - 0 1 Hi Marek, it seems like with Sting 13 this very difficult problem is solved. This is great ! I have just a crash engine after 10 hours but I used 8Go Hash. Analysis by Sting 13 based on Stockfish 2.1.1 64bit: ..... 1.b4xa5 Rd3-e3+ 2.Ke5-d6 Re3-d3+ 3.Kd...
by fishpov
Fri Dec 21, 2018 11:37 pm
Forum: Computer Chess Club: General Topics
Topic: Another "Brain Cramp for SF" position
Replies: 49
Views: 7400

Re: Another "Brain Cramp for SF" position


I only meant that it could be probably a regression.
I had previously tried this position with Sting 7.2 and the solution was found in 7h
With Sting 11.3 this is not found (I have not tried more than 24 hours)
Regards.
by fishpov
Mon Dec 10, 2018 5:56 pm
Forum: Computer Chess Club: General Topics
Topic: Another "Brain Cramp for SF" position
Replies: 49
Views: 7400

Re: Another "Brain Cramp for SF" position

Hi Marek
Thank you for your great job !
I cannot solve now this problem with Sting 11.2.
I let run my Core I7 12h.
Perhaps I need more times or bug in my computer ?
by fishpov
Mon Aug 06, 2018 3:01 pm
Forum: Computer Chess Club: General Topics
Topic: Test Position
Replies: 10
Views: 1697

Re: Test Position

[D]1k6/3p4/1B6/4Pp1p/1p5R/1p4p1/pP3n2/K6n w - - 0 1
1.Rxh1 Nxh1 2.e6 !
As stalemate position, I think this is not yet solved by Sting.
Thanks.
by fishpov
Sat Mar 03, 2018 10:49 am
Forum: Computer Chess Club: General Topics
Topic: MateFinder 9
Replies: 47
Views: 11051

Re: MateFinder 9

[D]rk1b4/p2p2p1/1P6/2R2P2/8/2K5/8/5B2 w - - 0 1 Analysis by Houdini 6.03 Pro x64 1 Pro x64: With 4 Threads and 2048Mo Hash in tactical mode I let more time. 1.Rc8+ +- (6.33 ++) Depth: 33/81 00:24:37 12521MN, tb=36947366 1.Rc8+ +- (6.44 ++) Depth: 33/81 00:27:41 13990MN, tb=41611130 1.Rc8+ +- (6.59 +...
by fishpov
Thu Mar 01, 2018 6:28 pm
Forum: Computer Chess Club: General Topics
Topic: MateFinder 9
Replies: 47
Views: 11051

Re: MateFinder 9

My Houdini 6.03 Pro in tactical mode = 1 or 0 finds very quickly. Here Tactical mode = 0 New game [D]rk1b4/p2p2p1/1P6/2R2P2/8/2K5/8/5B2 w - - 0 1 Analysis by Houdini 6.03 Pro x64-popc 1 Pro x64: 1.Rc5-c8+ +/= (0.39 ++) Depth: 34/49 00:00:09 70459kN, tb=177513 1.Rc5-c8+ +/= (0.60 ++) Depth: 34/49 00:...
by fishpov
Fri Feb 02, 2018 12:18 am
Forum: Computer Chess Club: General Topics
Topic: Sting SF 9.6
Replies: 13
Views: 3892

Re: Sting SF 9.6 : Chinese Wall problem

Hi Dan and Marek
I thing you're right :?

1. Kc1 bxc2 2. Kxc2 Kc6 3. b4 axb3+ 4. Kb2 Kb5 5. Ka3 Be8 6. Nb2 Bc6 7. Na4 Ka6 8. Nb6 Kb7 and black can prevent white knight breakthrough
by fishpov
Wed Jan 24, 2018 3:09 pm
Forum: Computer Chess Club: General Topics
Topic: Sting SF 9.6
Replies: 13
Views: 3892

Re: Sting SF 9.6 : Chinese Wall problem

Hi Marek, thanks for this new version

Chinese Wall from Otto Blathy, "Chess Amateur", 1921
This problem seems to be impossible for computer !

[d]4k3/6p1/8/3p3b/p1pPp1pP/BpP1PpP1/1P3P1R/K2N3N w - - 0 0[/d]

explanation for position
https://www.youtube.com/watch?v=ZEq_X-yE9nU