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：后到g8 (c4·6)
3步杀：兵到f5
3步杀：后到b4 (a4)
3步杀：后到c5 (f8)
3步杀：车到c7
3步杀：后到b6
3步杀：车到g4 (h4)
3步杀：车到d8 (d4)
3步杀：车到g4 (g3)
2步杀：后到g3 (c3)
3步杀：象到b5
3步杀：象到h5
3步杀：车到e7 (e1·4)
3步杀：后到b6 (e3)
3步杀：象到e2
3步杀：后到d5 (d3)
攻击未易位的王：兵到c7 (b6·4)
3步杀：后到e5 (f5)
3步杀：后到h7 (h4)
3步杀：车到d8 (d7)
3步杀：后到c6 (h1)
3步杀：兵到d3 (c2)
2步杀：后到c6 (h1·4)
3步杀：车到h7 (h5·2)
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