[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "White to play and win"] [Black "?"] [Result "*"] [Annotator "peter"] [SetUp "1"] [FEN "8/P7/2K5/8/5N2/8/2k2p2/8 w - - 0 1"] [PlyCount "9"] [EventDate "2008.08.11"] [SourceVersionDate "2020.04.01"] {[#]} 1. Ng2 {Rinck's winning line} (1. a8=Q {as the computer points out this also wins} f1=Q 2. Qa2+ Kc3 3. Nd5+ Kd4 4. Qb2+ Ke4 5. Qb4+ Kf3 (5... Ke5 6. Qe7+ Kd4 (6... Kf5 7. Qf7+) 7. Qe3+ Kc4 8. Qc3#) 6. Qf4+ Ke2 7. Nc3+ Kd3 (7... Ke1 8. Qe3+) 8. Qxf1+) 1... Kd2 (1... Kd3 2. a8=Q f1=Q 3. Qa6+) (1... Kd1 2. a8=Q f1=Q 3. Ne3+) 2. a8=Q f1=Q 3. Qa2+ Kc3 4. Qa3+ Kd2 (4... Kd4 5. Qc5+ Ke4 ( 5... Kd3 6. Qb5+) 6. Qd5#) 5. Qb2+ {and the black queen is lost to a fork or a skewer} *