Amberley excelled at chess - one mark, Watson, of a scheming mind.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "White player"]
[Black "Black player"]
[Result "*"]
[BlackElo "0"]
[FEN "8/8/8/6K1/8/5k2/P7/8 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
{ The Race.|White to move and win. } 1. Kf5 { White uses direct opposition to
prevent black from winning the race to the promotion square a8. } ( { White will
lose the race to promotion, because black can get inside the square of the
pawn. } 1. a4 Ke4 2. a5 Kd5 3. a6 Kc6 4. a7 Kb7 5. a8=Q+ Kxa8 ) 1... Ke3 2. Ke5 Kd3 3. Kd5 Kc3 4. Kc5 Kb2 5. a4 { The pawn will promote. White wins with a large
material advantage. } *