
1) An insane asylum 2) Chess variant 3) USEOH
Found on
https://www.crosswordclues.com/clue/crazyhouse

Crazyhouse (also known as drop chess, mad chess, reinforcement chess, turnabout chess and schizo-chess) is a chess variant similar to bughouse chess, but with only two players. It effectively incorporates a rule in shogi (Japanese chess), in which a player can introduce a captured piece back to the chessboard as his own. == Rules == All the rules ...
Found on
http://en.wikipedia.org/wiki/Crazyhouse
No exact match found.