Search found 346 matches

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: 1933

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: 1933

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
Mon May 13, 2019 8:49 pm
Forum: Computer Chess Club: General Topics
Topic: benchmark new smartphones:
Replies: 239
Views: 63603

Re: benchmark new smartphones:

OnePlus 6 with a Snapdragon 845 4656 kn/s.
by acase
Sat May 04, 2019 12:54 pm
Forum: Computer Chess Club: General Topics
Topic: Simple mate in 6 that gives some engines trouble
Replies: 20
Views: 2408

Re: Simple mate in 6 that gives some engines trouble

Rofchade 2.1 gets this one and Houdini 4 seems pretty fast, but the Rofchade analysis looks pretty wild, teetering back and forth between (#6) and (-#1989) Nice that rofChade finds it :D I think what happens is that rofChade first generates a generic info score string with the score 31989, which me...
by acase
Sat May 04, 2019 9:10 am
Forum: Computer Chess Club: General Topics
Topic: Simple mate in 6 that gives some engines trouble
Replies: 20
Views: 2408

Re: Simple mate in 6 that gives some engines trouble

Rofchade 2.1 gets this one and Houdini 4 seems pretty fast, but the Rofchade analysis looks pretty wild, teetering back and forth between (#6) and (-#1989) New game b4bN1/4p1p1/1Q1p2K1/q1np4/3p1Rnk/6pr/4Rppr/3N4 w - - 0 1 Analysis by RofChade 2.1: 1.Qxa5 f1Q 2.Qd2 g1Q 3.Rxf1 -+ (-17.12) Depth: 13/26...
by acase
Wed May 01, 2019 12:26 am
Forum: Computer Chess Club: General Topics
Topic: mate in 3?
Replies: 3
Views: 343

Re: mate in 3?

Hi Dann,

I don't think there is a mate in 3 that chest cannot solve, so I don't think there is a mate in 3, perhaps they have the position wrong on the website, or the position is cooked.
by acase
Sun Apr 28, 2019 10:09 am
Forum: Computer Chess Club: General Topics
Topic: Test Position 31.Qh8!
Replies: 7
Views: 660

Test Position 31.Qh8!

In this position, the White Queen moves to h8 so White can bring his rook down to h7 with check. This will be difficult for some engines, and easy for others I would suspect. this position is based on the ERET 84 position after making a few moves.. 4rn2/1r2pk2/1p1R1pp1/p1q3B1/2b1P1PQ/2P2P2/P3B1KR/8 ...
by acase
Sat Apr 27, 2019 1:36 pm
Forum: Computer Chess Club: General Topics
Topic: Alternate solution to ERET 084 28.Bg5!
Replies: 1
Views: 186

Re: Alternate solution to ERET 084 28.Bg5!

After looking through previous posts, it looks like someone else found this solution before. :oops:
by acase
Sat Apr 27, 2019 1:15 pm
Forum: Computer Chess Club: General Topics
Topic: Alternate solution to ERET 084 28.Bg5!
Replies: 1
Views: 186

Alternate solution to ERET 084 28.Bg5!

There appears to be an equally or slightly better key move for ERET 084 in 28.Bg5! 4r1k1/1r1np3/1pqp1ppB/p7/2b1P1PQ/2P2P2/P3B2R/3R2K1 w - - 0 28 Here's what I have so far AFTER MAKING THE MOVE 28.Bg5!, since Stockfish didn't find the move by itself. New game 4r1k1/1r1np3/1pqp1pp1/p5B1/2b1P1PQ/2P2P2/...
by acase
Fri Apr 26, 2019 1:17 am
Forum: Computer Chess Club: General Topics
Topic: An apparent fortress, but there is a move that looks like it wins.
Replies: 9
Views: 724

An apparent fortress, but there is a move that looks like it wins.

Here is the position, admittedly I borrowed and modified the end position from Walter Eigenmann's ERET 075: 3r4/3r4/2p1k3/p1pbPp1p/Pp1p1PpP/1P1P2R1/2P4R/2K1Q3 w - - 0 6 The correct move that looks like it "breaks through" is 1.Rxg4! I currently have Stockfish looking at the position after Rxg4! and ...