Chess Engines Diary

Shallow Guess - UCI chess engine, Author - Zixiao Han Rating CEDR=??? Shallow Guess 1.1.0 what's new? Updates Added piece square tables for move ordering (trained with linear regression with gradient descent) Added back static pruning Tested with longer time controls to confirm the rating improvement is on both blitz and longer games Shallow Guess 1.1.0 download

Shallow Guess - UCI chess engine, Author - Zixiao Han Rating CEDR=??? Shallow Guess 1.0.0 what's new? Major Updates: Enabled "semi-auto" SIMD optimizations using Portable SIMD from Rust's standard library (nightly) Expanded default hidden layer size to 1024 Removed most forward pruning and extension algorithms Replaced previous prototyping PyTorch scripts with new trainer written in Rust Added distance-based weighting on game results (labels) Added trail-based Zobrist hash generation Expected Elo Improvement:  ~100 Updated weights. Shallow Guess 1.0.0 download

Chess engine for Android - Kobra 2.0 Rating CEDR=??? Kobra 2.0 for Android download Chess engine for Android - PZChessBot dev-20250421T23 JA Rating CEDR=3574 PZChessBot dev-20250421T23 JA  for Android download Chess engine for Android - Seawall 20250322 JA Rating CEDR=3163 Seawall 20250322 JA for Android download Chess engine for Android - Shallow Guess 0.1.0 JA Rating CEDR=??? Shallow Guess 0.1.0 JA for Android download Chess engine for Android - Stash 37 JA Rating CEDR=3574 Stash 37 JA for Android download Chess engine for Android - Stockfish 17.1 Rating CEDR=3163 Stockfish 17.1 for Android download Chess engine for Android - Superultra 2.1 JA Rating CEDR=3574 Superultra 2.1 JA for Android download Chess engine for Android - Timecat 1.45.0 JA Rating CEDR=3163 Timecat 1.45.0 JA for Android download

Shallow Guess - UCI chess engine, Author - Zixiao Han Rating CEDR=??? v.0.4.0: Updated weights. Shallow Guess 0.1.0 JA download

Shallow Guess - UCI chess engine, Author - Zixiao Han Rating CEDR=??? v.0.1.0: Shallow Guess A strong UCI-compatible chess engine powered by neural networks. Board Representation Basic/Naive Bitboards (No Magic) Move Generation Pre-calculated bit masks Runtime ray attack generation with LSB/HSB operations Phased move generation Jim Ablett compiles: Shallow Guess 0.1.0 JA download