Lance, Running Rabbit, Knight, Gold General, and Great Elephant are currently allowed to promote immediately if they are dropped into the promotion zone (this should not be the case)
Both Pawns in the hand spaces can be selected when multiple Pawns are in the hand)
Looks good, save for a few errors:
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Setup Errors
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White Kirin and Phoenix are swapped from where they should be in the initial setup
Black King and Great Elephant are swapped from where they should be in the initial setup
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Promotion/Drop Errors
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Lance, Running Rabbit, Knight, Gold General, and Great Elephant are currently allowed to promote immediately if they are dropped into the promotion zone (this should not be the case)
Both Pawns in the hand spaces can be selected when multiple Pawns are in the hand)