Search found 114 matches

by jonkr
Mon Mar 08, 2021 5:51 pm
Forum: Computer Chess Club: General Topics
Topic: Your motivation for writing a chess engine?
Replies: 46
Views: 3636

Re: Your motivation for writing a chess engine?

For example I saw this win in TCEC FRC against Minic https://tcec-chess.com/#div=frc3lb&game=12&season=20 . V("BISHOP_STUCK_BLOCKED_PAWN", SB(-43, -51)); // Stuck on back rank, any forward directions blocked by blocked pawns ) This term came into play even though it would impossible for me to measu...
by jonkr
Mon Mar 08, 2021 1:33 am
Forum: Computer Chess Club: General Topics
Topic: Your motivation for writing a chess engine?
Replies: 46
Views: 3636

Re: Your motivation for writing a chess engine?

There are a lot of things I like about chess programming. Curiosity : think of some experiment to run, make some changes, then run a test or match to see the results. It's fun to experiment with. I like being able to measure results. Maybe most of the things I do aren't advancing towards actual ches...
by jonkr
Mon Mar 08, 2021 12:35 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: SlowChess Blitz 2.5 64-bit 4CPU Gauntlet for CCRL 40/15
Replies: 2
Views: 211

Re: SlowChess Blitz 2.5 64-bit 4CPU Gauntlet for CCRL 40/15

Thanks for testing. Probably a very lucky result for Slow 2.5, but to be 3400+ and highest rated program without NNUE on CCRL for the moment, the SlowChess reboot came a long way, and I think that's the highest rank possible for me. (Though of course SF 11 and Komodo 14 would be higher without NNUE,...
by jonkr
Sat Jan 23, 2021 4:29 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: More experiments with neural nets
Replies: 11
Views: 4571

Re: More experiments with neural nets

I guess that your NN topology with 705 inputs and 320 nodes in the first hidden layer is sufficient to roughly equal the best HCE. That's really cool! I do wonder how it actually compares, definitely performs better than my best HCE. Slow 2.5 still scores like -160 elo to Stockfish 11 in my 15s+.15...
by jonkr
Thu Jan 21, 2021 10:59 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: More experiments with neural nets
Replies: 11
Views: 4571

Re: More experiments with neural nets

For the general neural net, the 320 is the first hidden layer, so with input layer it's 705x320x32x32x1. (The endgame nets are Inputs Count x 256 x 32 x 32 x 1, where input count varies depending on how many different piece types can be in the net.) So the total inputs are 705, here's my general neu...
by jonkr
Wed Jan 20, 2021 6:12 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: CEGT - rating lists January 17th 2021
Replies: 5
Views: 1446

Re: CEGT - rating lists January 17th 2021

Hi Jonathan, did you receive my PM? My proposal for naming your engine in our lists would be: SlowChess BlitzNN 2.5 x64 . IIRC you wanted "Classic" to be deleted?! Just saw your PM now I don't always stay logged in. But yeah SlowChess BlitzNN 2.5 x64 is fine with me. To clarify to anyone wondering,...
by jonkr
Sun Jan 17, 2021 11:15 pm
Forum: Computer Chess Club: General Topics
Topic: SlowChess Blitz Classic 2.0
Replies: 93
Views: 30425

Re: SlowChess Blitz Classic 2.0

I added your v2.5 in my still running FCP Tourney-2021 and changed to v2.5 from today after round 4 out of 50. Now after 160 games place 3 / 41 with 116 / 160 points, 1.5 points more as Ethereal. Seems to be the same strength as Ethereal, but I haven't enough games. Thanks for updating it, glad to ...
by jonkr
Sun Jan 17, 2021 11:09 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: CEGT - rating lists January 17th 2021
Replies: 5
Views: 1446

Re: CEGT - rating lists January 17th 2021

I'm not sure if I'd consider SlowChess 2.5 NNUE. If it's meant to be a generic term for using a neural net to evaluate the positions on the CPU then it definitely fits, but It might cause some confusion since it's not based on the nodchip/Stockfish NNUE and not compatible. It's possible in future I ...
by jonkr
Sun Jan 17, 2021 10:56 pm
Forum: Computer Chess Club: General Topics
Topic: SlowChess Blitz Classic 2.0
Replies: 93
Views: 30425

Re: SlowChess Blitz Classic 2.0

Unfortunately, it does not work either. :( I've just now updated the zip file download again (slow64-sse.exe should be a newer modified time). I found the max 32-bit instruction is SSE4 also, while max 16-bit is SSE2. So it seems likely this is the remaining issue, but if it still doesn't work I'll...
by jonkr
Sun Jan 17, 2021 7:26 pm
Forum: Computer Chess Club: General Topics
Topic: SlowChess Blitz Classic 2.0
Replies: 93
Views: 30425

Re: SlowChess Blitz Classic 2.0

Thanks for this new version. The nopopcnt version does not work on my old PC (AMD Phenom II x4), 2.4 version works fine. When 2.5 starts thinking (out of the book), it crashes. +1 (Intel Pentium Penryn, Instructions sets: MMX, SSE, SSE2, SSE3, SSSE3, EM64T) Cheers, Tibono I updated the download for...