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
2步杀：后到e6 (c4·3)
2步杀：马到e5 (d3·2)
1步杀：后到g7 (g4·5)
2步杀：象到a6 (d3·2)
2步杀：后到e7 (e2·7)
2步杀：后到d7 (e8·2)
2步杀：后到e7 (b7)
2步杀：车到a8 (a7·4)
攻击未易位的王：后到c6 (e4)
2步杀：车到d7 (c7)
2步杀：车到e8 (e7·3)
2步杀：后到b6 (c5·2)
2步杀：后到h8 (h6·3)
2步杀：车到c7 (c3)
2步杀：车到d7 (d2)
2步杀：车到h8 (h7·8)
2步杀：车到f7 (g7)
2步杀：后到e7 (e3·5)
2步杀：后到e5 (h5·2)
2步杀：车到e8 (e6·5)
2步杀：后到h6 (e3·4)
2步杀：车到e8 (f8·2)
2步杀：后到a7 (d4·3)
2步杀：后到e7 (d6)
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