国际象棋/谜题/直接将军/两步将军 1/解答
解答是：1. Qa2
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起始位置。
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1. Qa2
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如果 1... Kxa8 则 2. c8=Q#
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如果 1... Kc6 则 2. Qd5#
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如果 1... Nb5 或 1... Nc6 则 2. c8=Q#
如果 1... Nc8... 2. d8=N#
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- 1. Qb3+ 失败，因为 1...Nb5 2. Qxb5+ Kxa8 是三步将死，而不是两步。
- 同样，1. Qb8+ 也失败，因为 Kc6 2. Qb6+ Kxd7
- 1. c8=Q+ Nxc8 2. dxc8=Q+ Ka7 3. Qf7# 也慢了一步。