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e5 (h8)
3步杀：车到a7 (a1)
攻击未易位的王：象到c6 (e4·14)
3步杀：马到d6 (c4)
3步杀：车到f8 (f1·4)
3步杀：后到e6 (b3·3)
3步杀：兵到h5 (g4)
3步杀：后到a3 (c5)
攻击未易位的王：兵到e8
3步杀：后到a8 (b7·2)
3步杀：马到d6 (f7)
3步杀：后到h6 (h3·2)
3步杀：后到e5 (b2)
3步杀：后到h7 (d7)
3步杀：车到f5 (f1)
3步杀：车到e8 (f8)
3步杀：车到h8 (h1·3)
3步杀：后到e6 (c8)
3步杀：兵到f6 (g5·4)
3步杀：后到h6 (h7)
3步杀：后到g6 (g4)
3步杀：象到a4 (d1·3)
3步杀：兵到d6 (e5·3)
3步杀：象到f2 (g1)
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