Chess960 战术题：护卫后杀
皇后贴脸将杀，身后有自己人保护。
3268 道题
3步杀：王到c2
3步杀：后到f8 (c5)
3步杀：车到e8 (e7·2)
3步杀：后到d8 (g8)
3步杀：后到h8 (h7·2)
3步杀：后到e5 (g5)
3步杀：后到e6 (c4·2)
3步杀：王到h1
2步杀：后到b2 (e5)
3步杀：车到c8 (c1)
3步杀：马到d6 (f5)
3步杀：后到h7 (d3·2)
3步杀：后到d7 (b5)
3步杀：后到e7 (f7)
3步杀：后到b8 (b5)
3步杀：后到c4 (c2)
3步杀：车到f7 (h7)
3步杀：后到c8 (c1)
3步杀：后到a6 (a5)
3步杀：车到d8 (d3·2)
3步杀：马到h6
3步杀：后到f8 (b4)
3步杀：后到e4 (e7)
3步杀：王到e1
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