Originally posted by BigDoggProblem Even if we suspend the 'normal' rules of chess and allow the K to be captured, we still have no idea whether Black mated by Nf3# or Ng2#.
Even if you allow the king to be taken, it still is unacceptable to leave the king in check and play Rg1 instead. In chess, that is.
From the moment you read the title of this thread you should have known this was not a normal chess game.
Apparently this puzzle has only a small resemblance with the normal chess game.
The object of this puzzle was to recontruct the checkmate. Obviously the king couldn't have moved from that position, otherwise it wasn't a checkmate. The move white made must therefore have been the rook.
What about the puzzle don't you understand? Is the idea of taking the king so mind boggling that you can't recognise a simple puzzle?
Other puzzles have many idiotic rules, I find the rules in this puzzle not too strange.