Rook… and worth buying.
I played Rook in college… more than I should have. Finally, a computer version with computer opponents capable of playing decently well, and the flexibility to set rules to whatever you are used to. The only feature I miss is the "call partner," as opposed to set partner of this version. This is a well-executed, sound version of Rook worth buying and playing, though I havent tried multiplayer yet.
JRoyGreen about
Blackbird!, v1.4.1