1989 Bournemouth TT
2. Prize
1...Kh5 2.Qf3# 1.Bg~? ~ 2.Rh4#
1.Bf6? 1..Re5! (2.Sf6#?) 1.Bf4? 1..Re4! (2.Qf5#?)
1.Be3? 1..Be4! (2.Se3#?) 1.Bd2? 1..Be5! (2.Qd1#?)
1.Bc1! ~ 2.Rh4# 1...Re5 ..Re4 ..Be5 ..Be4
2.Sf6#,Qf5#,Qd1#,Se3#
black double Grimshaw, white self-obstruction,
option key by wB
2# 10+6 id=99