@Ghislaine @RegalBeagle any piece can move like a king for one turn (very useful for bishops and knights)
pawns promote 1 row before the end
bishops can slide along the edge of the board (pic related: the bishop can slide along the edge of the board and take the rooks (provided no pieces are in the way))
pawns can attack diagonally backwards
when your rooks or queen are taken the piece which takes them is also taken
your king can move 2 spaces and jump over pieces