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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...

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...

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,...

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...

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...

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,...

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 ...

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 ...

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...

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...