New Metamachy rule-enforcing preset: After brief testing of en passant and initial king move...
I was unable to make any en passant captures using white pawns on ranks 6, 7, and 8. I was able to make normal en passant captures with white pawns on ranks 4 and 5. More interestingly, I was able to make illegal en passant captures with white pawns on ranks 4 and 5. By illegal, I mean that: a black pawn that can be captured normally by a white pawn makes a double-move; White on his next turn is allowed to take that pawn en passant illegally. I was able to make legal en passant captures with black pawns on all squares tested. I was also able to make the illegal en passant captures with black pawns on all squares.
The initial king 2-square move doesn't seem to work.
New Metamachy rule-enforcing preset: After brief testing of en passant and initial king move...
I was unable to make any en passant captures using white pawns on ranks 6, 7, and 8. I was able to make normal en passant captures with white pawns on ranks 4 and 5. More interestingly, I was able to make illegal en passant captures with white pawns on ranks 4 and 5. By illegal, I mean that: a black pawn that can be captured normally by a white pawn makes a double-move; White on his next turn is allowed to take that pawn en passant illegally. I was able to make legal en passant captures with black pawns on all squares tested. I was also able to make the illegal en passant captures with black pawns on all squares.
The initial king 2-square move doesn't seem to work.
Will keep testing...