new zombies:
puncher: it will push a pawn and if it cannot, it captures. if it cannot do that too, it does a random move.
f-puncher: it will push a pawn and if it cannot, it captures. if it cannot do that too, it does a futer move.
musher: it will capture and if it cannot, it pushes a pawn. if it cannot do that too, it does a random move.
f-musher: it will capture and if it cannot, it pushes a pawn. if it cannot do that too, it does a futer move.
mecker: it will capture and if it cannot, it checks. if it cannot do that too, it does a random move.
f-mecker: it will capture and if it cannot, it checks. if it cannot do that too, it does a futer move.
chuncher: it will check and if it cannot, it captures. if it cannot do that too, it does a random move.
f-chuncher: it will check and if it cannot, it captures. if it cannot do that too, it does a futer move.
pucker: it will push a pawn and if it cannot, it checks. if it cannot do that too, it does a random move.
f-pucker: it will push a pawn and if it cannot, it checks. if it cannot do that too, it does a futer move.
chesher: it will check and if it cannot, it pushes a pawn. if it cannot do that too, it does a random move.
f-chesher: it will check and if it cannot, it pushes a pawn. if it cannot do that too, it does a futer move.
stockfish: (unbeatable)
ranter versions:
double ranter: (has 50% chance of playing a ranter move or playing a futer move)
panter: (has 50% chance of playing a patzer move or a futer move)
new pieces:
rock: it cannot be captured. it can only be placed on opponents' promotion ranks. check it 3 times to remove it. it does not remain as a dead piece and it just dissapears. you can place it only one time. it is used to stop promotion or a back rank checkmate.
in this postion, if it is 1 check and black already used the rock, white could use the rock to stop promotion and white will win!