python-chessx

A chess XAI program

1. Introduction
2. Dependencies
3. Features
4. Tests

1. Introduction

python-chessx is an explainable chess AI that generates commentary for positions/moves in a game of chess.

2. Dependencies

• Python3 - Download and Install Python3. You can also use your system's package manager to install the latest stable version of python3.
• For dev work, run the following commands (preferrably in a virtual environment):

pip install -e .

3. Features

• Provides a utility to generate explanations from a FEN representation of a chess position.
  1. Piece Square Tables

  import chessx.heuristic as heuristic
  import chess
  
  psqt_fen = 'rn2kb1r/pp2qppp/2p2n2/4p1B1/2B1P3/1QN5/PPP2PPP/R3K2R b KQkq - 1 9'
  psqt_util=heuristic.PSQT(psqt_fen)
  
  # generate list of explanations
  exp_list=psqt_util.get_explanations()
  
  # print explanations
  print('PSQT Explanations:')
  for exp in exp_list:
      print(exp)
  

  2. Trapped Pieces

  tp_fen='r5k1/p4p1p/2p3pb/2N1n2n/1p2PP2/1B2B1PP/PP4K1/3R4 b - - 0 24'
  tp_util=heuristic.TrappedPieces(tp_fen)
  
  # generate list of explanations
  exp_list=tp_util.get_explanations()
  
  # print explanations
  print('Trapped Pieces Explanations:')
  for exp in exp_list:
      print(exp)
  

  3. Pinned Pieces

  pin_fen='1rk5/8/4n3/5B2/1N6/8/8/1Q1K4 b - - 0 1'
  pin_util=heuristic.PinnedPieces(pin_fen)
  
  # generate list of explanations
  exp_list = pin_util.get_explanations()
  
  # print explanations
  print('PinnedPieces Explanations:')
  for ex in exp_list:
      print(ex)  
  print()
  

3. Tests

The following command to runs unit tests on the project:

pytest