Grasshopper Chess: Miscellaneous Problems


ReflexmateSerieshelpmateSelfmateRetractor

é REFLEX MATE

C.Seneca
Themes 64 1957
Reflexmate in 6

Solution: 1c5 f6 2.Gb1 f5 3.Bd4 f4 4.Bg1 f3 5.Rb8! f2 6.Bh7! f1=G‡

Comment: Grasshopper promotion. Subtle control of move order:
1.Gb1? f5 1.Bd4? 2.Bc5‡ 1.Rb8? 3.Bb2‡


é SERIESHELPMATE

C.C.L.Sells
Feenschach 1973
Serieshelpmate in 6

Solution: Set mate: 1...f×g(en passant)‡
Play: 1.K×g4 2.Kf3 3.K×e4 4.Kd5 5.Kd6 6.e5 for f×e(e.p.)‡

Comment: The grasshopper method of proving en passant capture legal.
Diagonal and lateral modes.


é SELFMATE

W.H.Reilly
Feenschach 1961
Selfmate in 4

Solution: 1.Bc4 B any 2.Ga4† Bb4 3.Bd3† Bd2 4.Be4† Bf4‡

Comment: G pins but cannot capture pinned piece (‘soft pin’).


é RETRACTOR

C.Becker
Feenschach 1949
White and Black Retract 1 move for Helpmate in 1, with set play.

Solution: Set: Retract c4×Nd3 for 1.Rd2 Ne1‡
Play: Retract Kc4×Qc5 Qh5×Gc5 for 1.Qd1 Kb4‡