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d7 (d4·6)
3步杀：车到g7 (f7)
3步杀：车到e2
3步杀：车到d1 (c1)
3步杀：车到g6 (h6)
3步杀：后到f8 (h8)
3步杀：后到g3 (c7)
攻击未易位的王：后到b6 (f2·7)
3步杀：车到b6
3步杀：后到c7 (c1)
3步杀：车到e8 (e7·2)
3步杀：后到d8 (g8)
2步杀：车到g5 (g4·2)
3步杀：后到g6 (b1·2)
攻击未易位的王：后到f6 (h6)
攻击未易位的王：后到b4 (e1·10)
3步杀：车到e4 (e1)
3步杀：后到b8 (b5)
3步杀：后到g6 (h6)
3步杀：车到f7 (h7)
3步杀：后到e6 (f5·2)
3步杀：车到d8 (d3·2)
3步杀：象到f6 (a1·2)
3步杀：马到e3
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