However, when black still has a rook, the moves required to get white's rooks over to the other side of the board are enough for the black rook to move up and shield the king. If the rooks defend themselves by moving onto the same rank or file, the king is then able to slip between them when one moves thus the king cannot be confined to the edge of the board.Ģ) The above problem would not apply if it were not for the extra black rook, since in a 2 rooks plus king scenario, the rooks can dart across the board in a couple of moves and continue to force the king towards the edge. However, from most positions, the king is close enough to the white rooks that it can move diagonally to intercept them as they advance up the board and thus prevent checkmate. The problems are:ġ) To achieve mate, the black king needs to be driven to the edge of the board. I haven't been able to find anything about how to achieve mate with this combination on the board. Eventually I blundered and lost the extra rook, but I'm confused about how checkmate could have been achieved when my opponent was unwilling to exchange rooks. But I've just spent a frustrating game failing to achieve checkmate. So do various online sources, which suggest that in most (if not all) positions, this is a win for white. Common sense tells me that white ought to be able to win with the extra rook.
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