Check Your Mate
S4, E7: It's the chess championship against Valley and Zack and Slater bet $300 that Screech will win. When some Valley students steal Screech's lucky beret, Zack and Slater retaliate by stealing Screech's opponent.

S4, E7: It's the chess championship against Valley and Zack and Slater bet $300 that Screech will win. When some Valley students steal Screech's lucky beret, Zack and Slater retaliate by stealing Screech's opponent.