Chess960 战术题：天梯杀
两个重子一线一线地推进，切断所有退路。
1518 道题
攻击未易位的王：车到f6 (f5)
3步杀：后到h2 (h4)
3步杀：后到e7 (e5·4)
3步杀：后到b5 (a4·3)
3步杀：后到h7 (e4·2)
3步杀：后到g7 (h8·2)
3步杀：后到f7 (g8·2)
3步杀：后到b7 (e4·2)
3步杀：车到g1 (a1·2)
3步杀：后到b6 (f2·3)
3步杀：王到e1 (d1)
3步杀：后到h2 (c7)
2步杀：后到a5 (a7)
3步杀：马到d5 (f6·2)
3步杀：象到d7 (b5)
3步杀：后到f7 (d5·4)
3步杀：后到b8 (b6·2)
3步杀：象到g6 (f5·2)
3步杀：马到f6 (e4·6)
3步杀：后到g5 (g4·2)
3步杀：后到h7 (h5·4)
3步杀：引离，a8
2步杀：双重攻击，c4
Chess960战术：c7 (d5)
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