Thomas Taverner published this remarkable problem in the Dubuque Chess Journal in 1889. White is to mate in two moves.

| SelectClick for Answer | | --- | | The impossibly quiet 1. Rh1! leaves Black in zugzwang — he has 19 legal moves, and each one leads immediately to mate:1. … Bxh7 2. Nd5#1. … Bf7 2. Qf5#1. … Be6 2. e3#1. … Bd5 2. Nxd5#1. … Bxc7 2. Rh4#1. … Be7 2. e3#1. … Bf6 2. Qf5#1. … Bg5 2. Qh2#1. … Bh4 2. Rxh4#1. … Rf7 2. Nd5#1. … Rf6 2. Rh4#1. … Rf5 2. Qxf5#1. … Re7 2. Rh4#1. … Re6 2. Nd5#1. … Re5 2. Qg4#1. … Re4 2. fxe4#1. … Re3 2. Bh2#1. … Rxe2+ 2. Nxe2#1. … c3 2. Nd3# |

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