White to play and win (medium)
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1.b3! ( 1.b4? Ka6 2.Kb8 Kb6 3.Kc8 Kc6 4.Kd8 Kd6 5.Ke8 Ke6 6.Kf8 Kf6 7.Kg8 Kg6 8.Kh8 Kh6= ) 1...Ka5 2.Kb8! { 2.Kb7 b4 3.c4 is stalemate. } 2...b4 ( 2...Kb6 3.b4 ) 3.c4 Kb6 4.Kc8 Kc6 5.Kd8 Kd6 6.Ke8 Ke6 7.Kf8 Kf6 8.Kg8 Kg6 9.Kh8 Kf6 ( 9...Kh6 10.c5 ) 10.Kh7 Kf7 11.Kh6 Kf6 12.Kh5 Kf5 13.Kh4 Kf4 14.Kh3 Kf5 ( 14...Kf3 15.c5 ) 15.Kg3 Kg5 16.Kf3 Kf5 17.Ke3 Ke5 18.Kd3 Kd6 19.Kd4 Kc6 20.c5 1-0
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "2.54"]
[White "?"]
[Black "?"]
[Result "1-0"]
[FEN "K7/8/1k6/1p6/8/2P5/1P6/8 w - - 0 1"]
[SetUp "1"]

1.b3 $1 ( 1.b4 $2 Ka6 2.Kb8 Kb6 3.Kc8 Kc6 4.Kd8 Kd6 5.Ke8 Ke6 6.Kf8 Kf6 7.Kg8
Kg6 8.Kh8 Kh6 $10 ) 1...Ka5 2.Kb8 $1 { 2.Kb7 b4 3.c4 is stalemate. } 2...b4
( 2...Kb6 3.b4 ) 3.c4 Kb6 4.Kc8 Kc6 5.Kd8 Kd6 6.Ke8 Ke6 7.Kf8 Kf6 8.Kg8 Kg6
9.Kh8 Kf6 ( 9...Kh6 10.c5 ) 10.Kh7 Kf7 11.Kh6 Kf6 12.Kh5 Kf5 13.Kh4 Kf4 14.Kh3
Kf5 ( 14...Kf3 15.c5 ) 15.Kg3 Kg5 16.Kf3 Kf5 17.Ke3 Ke5 18.Kd3 Kd6 19.Kd4 Kc6
20.c5 1-0