GoGroupSet groups = board_.getGroups();
for ( int i = 1; i <= board_.getNumRows(); i++ ) {
for ( int j = 1; j <= board_.getNumCols(); j++ ) {
GoBoardPosition space = (GoBoardPosition) board_.getPosition( i, j );
if ( space.isOccupied() ) {
groups.confirmStoneInValidGroup(space);
}
}
}
}