5.0
Features
Black Marlin 5.0 is noticeably more optimized than 4.0, comes with various improvements to the search function and uses the HalfKP feature set for NNUE evaluation. The network has been trained on 820M positions which is composed of the dataset used to train 4.0 neural networks and a newly generated one. The neural network is embedded in the executable, so no additional work is required.
In self play, Black Marlin 5.0 is ~125 Elo stronger than Black Marlin 4.0 at short time controls (8+0.08).
Which Binary to Download?
Before everything, the main branch on GitHub is always the strongest version and is configured to compile for the CPU of the specific machine. Building from source will always give you the strongest possible engine.
The binaries require the instructions in their names (e.g. blackmarlin-windows-popcnt-avx2.exe will require popcnt and avx2 instructions).
If you are on an ARM Mac, you'll need the darwin-neon build.
Binaries Ordered by Runtime Performance:
- AVX512F + POPCNT
- AVX2 + POPCNT
- SSE4.2 + POPCNT
- SSSE3 + POPCNT
- POPCNT
- No Instructions Included