[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "White to play and win"]
[Black "?"]
[Result "*"]
[Annotator "peter"]
[SetUp "1"]
[FEN "4n3/1p5k/p2P1n1p/1Np1pp2/P1B5/7P/1P3PPK/8 w - - 0 1"]
[PlyCount "7"]
[EventDate "2017.??.??"]
[SourceVersionDate "2020.04.01"]
{[#]} 1. Bf7 $1 Ng7 {perhaps the best try but Black is tied in knots as
neither the N on g7 nor his king can move, e.g.} (1... axb5 2. Bxe8 {costs
Black his knight to stop the d-pawn queening}) (1... Kg7 2. Bxe8 Kf8 (2... Nxe8
3. d7) 3. d7 Ke7 4. Nc3 {leaves White with an extra piece}) 2. Nc7 a5 (2... Nd7
3. a5 f4 (3... e4 4. Bd5) 4. Bd5 {the b7 pawn falls and it is all over}) 3. Nd5
Nd7 (3... Nxd5 4. Bxd5 Kg6 5. d7) 4. Kg3 {and Black is heading towards
zugswang because if the knight on d7 moves the White plays Nf6 followed by d7}
*