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Omega Chess. Rules for commercial chess variant on board with 104 squares. (12x12, Cells: 104) (Recognized!)[All Comments] [Add Comment or Rating]
Jeremy Lennert wrote on Sun, Sep 18, 2011 06:42 PM UTC:
I thought the definition of 'major' was 'able to FORCE checkmate with only the aid of a King'?

If your standard is 'able to deliver a checkmate if the enemy King cooperates', I believe the Rook also qualifies (can checkmate enemy King near the center of an edge if friendly King has opposition).

But I can't for the life of me think of any reason that would matter.  The force mate definition tells you the minimum amount of material you need to preserve to win a simplified endgame.  How does knowing that a Bishop could hypothetically deliver a checkmate *if your opponent decides to help you* have any effect on gameplay, let alone piece values?