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
3步杀：后到b5
3步杀：车到d7
3步杀：车到d4 (d2)
3步杀：车到a1 (b1)
3步杀：兵到b8
3步杀：后到d6 (g3)
3步杀：车到g7 (g6)
3步杀：车到h8 (h1·2)
3步杀：兵到c8
3步杀：车到e7 (e1)
3步杀：后到a5 (d2)
3步杀：马到e4 (g3)
3步杀：兵到c5
3步杀：象到f3
3步杀：兵到b7
攻击未易位的王：车到d8 (d1·26)
3步杀：兵到f4
3步杀：后到f4 (d2)
3步杀：后到h4
3步杀：车到a4
3步杀：马到c6 (e7)
3步杀：马到d7
3步杀：象到f6
3步杀：后到a7
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