Lynx it's written in C# (.NET 6). UCI protocol is needed.
Chess Engines Diary Rating CEDR=2889
Lynx release artifacts are self-contained and require no dependencies to be run.
However, you can also choose to build Lynx yourself.
Requirements
NET 6 SDK. You can find instructions about how to install it in yo
v.1.5.0
- 🔍 Add Futility pruning (FP) (#733)
- 🔍 LMR: allow when in check (#702)
- 🔍 LMR: reduce more if there's a TT move and a capture (#706)
- 🔍 Move RFP before NMP (#732)
- 🔍 SPSA search parameters tuning (#730, #764)
- ⚖️ Remove double pawns penalty [proper SPRT pawn eval] (#746)
- ⚖️ Index bishop mobility bonus by attacks count (#758)
- ⚖️ Index rook mobility bonus by attacks count exluding own pieces (#768)
- ⚖️ Add knight mobility bonus and index it by attacks count excluding own pieces (#775)
- ⚖️ Take only pawns into account for king shield (#789)
- ⚖️ Add king virtual mobility indexed by mobility count (#785)
- ⚖️ Use some Stoofvlees quiet data for eval tuning (#710)
- ⚡ Improve search logic (#725)
- ⚡ Use optimized method to check if a move was valid (#716)
- ⚡ Use a StringBuilder to generate UCI info command (#805)
- ⚡ Remove option to disable TT (#720)
- ⚡ Remove manual piece count during static eval (#698)
- ⚡ Simplify TaperedEvaluationTermByRank (#757)
- ⚡ Simplify TaperedEvaluationTermByCount (#767)
- ⚡ Simplify Aspiration windows (#802)
- 🐛 Fix index out of range exception on max depth (#708)
- 🐛 Detect threefold repetition on pvNode (#796)
- 🐛 Fix Game.MakeMove behavior on invalid moves (#804)
- Non strength-winning changes:
- Add ponder support (#772)
- Generate UCI options for search parameters dynamically (#734)
- Normalize mobility values (#788)
Lynx 1.4.0 - Individual statistics
| Jet 1.2 | 3.5/13 | -6 | 13 Games |
| Stockfish 16.1 | 0/12 | -12 | 12 Games |
| Marauders 3.0 | 0/12 | -12 | 12 Games |
| HypnoS 190324 | 0.5/11 | -10 | 11 Games |
| Big-SF 210324 | 0/10 | -10 | 10 Games |
| SF 16.1 MPV | 0/10 | -10 | 10 Games |
| Reckless 0.6.0 | 0/10 | -10 | 10 Games |
| Piglet 1.3.5 | 8/8 | +8 | 8 Games |
| Sloth 1.7 | 8/8 | +8 | 8 Games |
| Rice 8.0.0 | 0/8 | -8 | 8 Games |
| Rebel 16.3 | 0/8 | -8 | 8 Games |
| Berserk 20240311 | 0.5/7 | -6 | 7 Games |
| Dragon free | 0/6 | -6 | 6 Games |
| Critter 1.6a | 0/6 | -6 | 6 Games |
| Ippolit 032324 | 0/6 | -6 | 6 Games |
| Shallow 5 | 3.5/4 | +3 | 4 Games |
| Vengeance 3.0.0 | 2/4 | +0 | 4 Games |
| Lux 4.2 | 1.5/4 | -1 | 4 Games |
| Devel 4.0.2.3 | 1/4 | -2 | 4 Games |
| Journeyman 2.1 | 1/4 | -2 | 4 Games |
| Wize 1.0 | 1/4 | -2 | 4 Games |
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Lynx 1.5.0 download github:https://github.com/lynx-chess/Lynx/releases/tag/v1.5.0
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