The Meow chess engine

Meow...?

Dependencies

• Node.js & npm

Setup

1. Clone the repository to your machine.

2. Go to ./Meow/, install the packages:

npm install

3. Fire up Meow!

node .

What do we currently have?

The engine

• Negamax search algorithm with Alpha-Beta pruning.
• Iterative deepening.
• Principal variation search.
• Null-move pruning.
• Move ordering:
  • PV moves.
  • MVV-LVA heuristic.
  • Killer heuristic.
  • History heuristic.
  • Countermove heuristic.
• Transposition table.
• Late move reduction.
• Checkmate and stalemate detection.
• Quiescence search (disabled).
• Aspiration window (disabled).
• Evalution:
  • Piece-Square table.

Others

• A simple and not-that-intuitive console application that takes a FEN value and returns a move.

How strong is it?

After some testing, it completely out-performs ~1200 elo chess bots on chess.com early game and mid-game, but does not know how to deliver a proper checkmate.

Copyrights

Copyrights © 2023 Nguyen Phu Minh.

This project is licensed under the GPL-3.0 License.