1.1 --- a/Source/GoGame.m	Tue Mar 11 09:21:53 2008 -0700
     1.2 +++ b/Source/GoGame.m	Wed Mar 12 15:51:32 2008 -0700
     1.3 @@ -106,6 +106,8 @@
     1.4  
     1.5  - (BOOL) canBit: (Bit*)bit moveFrom: (id<BitHolder>)srcHolder to: (id<BitHolder>)dstHolder
     1.6  {
     1.7 +    if( ! [dstHolder isKindOfClass: [Square class]] )
     1.8 +        return NO;
     1.9      Square *dst=(Square*)dstHolder;
    1.10      
    1.11      // There should be a check here for a "ko" (repeated position) ... exercise for the reader!