[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "White to play and draw"] [Black "?"] [Result "*"] [Annotator "peter"] [SetUp "1"] [FEN "N7/2K5/k2N4/8/8/p7/2b5/8 w - - 0 1"] [PlyCount "17"] [EventDate "2010.04.18"] [SourceVersionDate "2020.04.01"] {[#]} 1. Nc4 a2 2. Kb8 $1 Kb5 {the only move to prevent mate} (2... a1=Q $2 3. Nc7#) 3. Na3+ Kb4 4. Nxc2+ Kb3 (4... Kc3 5. Na1) 5. Na1+ Kb2 6. Nb6 Kxa1 7. Na4 Kb1 8. Nc3+ Kb2 9. Nxa2 $11 *