(count-condition (total-piece-count 2)) ; is an old attempt to add an 'automatic draw rule' to Zillions. But I found that it can create problems in Zillions chess games, and decided not to implement it. Here is an example with 4 pieces set up on an empty board:
VariantName=Chess (Black Queen c1) (Black King a2) (White King b4) (White Rook d3)
Apparently Zillions was worried about the sequence 1... Queen x Rook check 2. King x Queen 'automatic draw'. I have not seen Zillions actually play an illegal move when the count-condition line is added to a ZRF, but this example does show Zillions failing to win a game because it reacts to the apparent threat of a future illegal move. This lack of a command to automatically end a game of chess when only the two kings remain is a minor inconvenience. But there is a (MAJOR) problem with the 'bare king rule' in every Shatranj related ZRF that I have tested. See the Shatranj Page Comments for more details.
(count-condition (total-piece-count 2)) ; is an old attempt to add an 'automatic draw rule' to Zillions. But I found that it can create problems in Zillions chess games, and decided not to implement it. Here is an example with 4 pieces set up on an empty board:
VariantName=Chess (Black Queen c1) (Black King a2) (White King b4) (White Rook d3)
Apparently Zillions was worried about the sequence 1... Queen x Rook check 2. King x Queen 'automatic draw'. I have not seen Zillions actually play an illegal move when the count-condition line is added to a ZRF, but this example does show Zillions failing to win a game because it reacts to the apparent threat of a future illegal move. This lack of a command to automatically end a game of chess when only the two kings remain is a minor inconvenience. But there is a (MAJOR) problem with the 'bare king rule' in every Shatranj related ZRF that I have tested. See the Shatranj Page Comments for more details.