This is a command line tool for quickly evaluating a position in chess. Here are the basics you need to know to get started :

• Input : Any FEN string(s) or a file containing FENs

>> python position_eval.py <fen1> [<fen2>...<fenN>]
OR
>> python position_eval.py file <filename>
(Note : filename must have the extension .fen)

• Output : Current evaluation score and the best move. The FEN(s) along with the evaluation score is also written to a file called game_moves.log

You can also plot evaluation score vs number of moves using

>> python plotter.py

This will take data from game_moves.log

This file takes in a puzzle file in PGN format which contains Mate in 4+ puzzles, parses out the FEN strings, finds the optimal move sequence for mate and prints it to stdout and a file named dataset