Hello, thank you for your answer. Sorry to hear you've been badly treated by picocalc. This was about the NES version in fact, maybe on the real machine it desn't behave the same. Thank you for your link anyway, Regards.
Hello. I just played the Picocalc version, and found a bug: With black, if AI has a rook replaced with another piece (a bishop) it still castle and magically replace the bishop by a rook during the move.
