Search found 4980 matches

by zullil
Sun Nov 04, 2018 9:49 pm
Forum: Computer Chess Club: General Topics
Topic: may be a good test position ...
Replies: 20
Views: 1214

Re: may be a good test position ...

although I believe many humans would play the best move just out of instinct/experience... very difficult for dev-McCain 10.2 - over 15 minutes and nearly 23 billion nodes on my mac r2q1rk1/p1pn1p2/1p2pPp1/3p2B1/2PP3Q/2b5/PP3P1P/2KR2Nb w - - 2 4 ; bm Rd3 Stockfish-dev finds Rd3: info depth 39 selde...
by zullil
Thu Nov 01, 2018 8:57 pm
Forum: Computer Chess Club: General Topics
Topic: The Halloween Chess Puzzle 2018
Replies: 14
Views: 691

Re: The Halloween Chess Puzzle 2018

Here's a straight search using Stockfish-dev. Not yet seeing the #37: info depth 79 seldepth 76 multipv 1 score mate 38 Let's not have too much argueing about the single one move, Louis :) I had long Backward before standalone- computing and don't think SF (or asmFish) is wrong as for too short lin...
by zullil
Thu Nov 01, 2018 10:12 am
Forum: Computer Chess Club: General Topics
Topic: The Halloween Chess Puzzle 2018
Replies: 14
Views: 691

Re: The Halloween Chess Puzzle 2018

Still would lay my bets rather on #37, any other findings from other mate- solvers? :) Will let it run a little longer with full hash and will come back later maybe. And here we are again already: 1N6/2pp4/3k1P2/p7/1pK1P3/5P1P/3r2N1/8 w - - 0 1 Analysis by asmFishWCP_2018-10-28_popcnt: 1.e5+ Ke6 2....
by zullil
Wed Oct 31, 2018 4:05 pm
Forum: Computer Chess Club: General Topics
Topic: The Halloween Chess Puzzle 2018
Replies: 14
Views: 691

Re: The Halloween Chess Puzzle 2018

by zullil
Tue Oct 23, 2018 5:04 pm
Forum: Computer Chess Club: General Topics
Topic: What was the top Chess engine before it was Stockfish, Komodo or Houdini?
Replies: 58
Views: 3237

Re: What was the top Chess engine before it was Stockfish, Komodo or Houdini?

JohnW wrote:
Tue Oct 23, 2018 4:57 pm
Just curious if anyone happens to know..
Rybka comes to mind.
by zullil
Wed Oct 17, 2018 10:14 am
Forum: Computer Chess Club: General Topics
Topic: Test the combinational vision of your engine
Replies: 14
Views: 1264

Re: Test the combinational vision of your engine

When I was checking the line after 1...Be7 2.Bxe7 Bc6 3.Bd6 Qxc7 4.Bxc7 O-O, I found a weakness in Stockfish, unable to find quickly the sacrifice to mate : Bxf7+! [D]1r3rk1/1pB2ppp/2b1p3/3pP3/p4Q2/P2B4/1P3PPP/2R3K1 w - - 1 5 Stockfish only searches legal moves. :wink: In any case, Stockfish-dev fi...
by zullil
Tue Oct 16, 2018 10:20 am
Forum: Computer Chess Club: General Topics
Topic: Test the combinational vision of your engine
Replies: 14
Views: 1264

Re: Test the combinational vision of your engine

Stockfish cannot find Rxd7 Kxd7 Qa7 and also suggest Qf4 that suggest a very poor combinational vision by stockfish. I believe that Rxd7 mates faster but I am not sure. 1r2kb1r/1pRb1ppp/4p3/q2pP1B1/p2Q4/P2B4/1P3PPP/2R3K1 w k - 1 1 Here is an informative snippet from a search by Stockfish-dev. It se...
by zullil
Fri Oct 12, 2018 10:08 pm
Forum: Computer Chess Club: General Topics
Topic: Tough tactical test position?
Replies: 30
Views: 3992

Re: Tough tactical test position?

I guess that both moves win. Looks that way. Ending search here: info depth 53 seldepth 92 multipv 1 score cp 226 nodes 4376523479399 nps 22630344 hashfull 999 tbhits 0 time 193391816 pv f8g8 e2d3 g6g5 h4g5 h7g5 c2d1 d7f6 f3g5 g8g5 d1f3 c8g4 g1f1 d8d7 b4a5 b6a5 c4c5 h5h4 f1e2 f6e4 d3e4 g4f5 e4c4 e5...
by zullil
Fri Oct 12, 2018 11:45 am
Forum: Computer Chess Club: General Topics
Topic: Tough tactical test position?
Replies: 30
Views: 3992

Re: Tough tactical test position?

r1bq1r1k/2pn3n/1p1p2pb/pN1Pp2p/1PP1Pp1P/P4N2/2BBQPP1/RR4K1 b - - 0 22 Does any engine find g5 and the win? Since I failed to stop my Cfish-dev search, here's what the engine offers as of now: info depth 52 seldepth 97 multipv 1 score cp 211 nodes 2580402152571 nps 22041446 hashfull 999 tbhits 0 tim...
by zullil
Fri Oct 12, 2018 9:43 am
Forum: Computer Chess Club: General Topics
Topic: CCCC and TCEC hardware is unfair?
Replies: 11
Views: 2352

Re: CCCC and TCEC hardware is unfair?

I judge chess engines based on the quality of the chess moves played and discovered. Seems like they are saying that GPUs should never play CPUs, AB engines can only play NN engines as long as it is on the same hardware. As for me, I really don't care. I just want to see quality chess. Well said! I...