[Event "Zadachi i Etyudy"] [Site "?"] [Date "2016.??.??"] [Round "?"] [White "(2) Valery Kalashnikov (RUS)"] [Black "?"] [Result "1-0"] [Annotator "2nd Prize"] [SetUp "1"] [FEN "8/4K1R1/4p1N1/7k/8/7p/1p6/6Nn w - - 0 1"] [PlyCount "41"] [EventDate "2016.??.??"] 1. Nf4+ Kh6 2. Rg6+ Kh7 3. Nf3 $1 ({Thematic try} 3. Ngxh3 $2 b1=Q 4. Ng5+ Kh8 5. Nf7+ Kh7 6. Rh6+ Kg8 7. Rh8+ Kg7 8. Nxe6+ Kg6 9. Rg8+ Kh5 10. Rg5+ Kh4 $11) 3... b1=Q 4. Ng5+ Kh8 5. Nf7+ Kh7 6. Rh6+ Kg8 7. Rh8+ Kg7 8. Nxe6+ Kg6 9. Rg8+ Kh5 (9... Kh7 10. Rg7# {modellmate}) (9... Kf5 10. Nd6+ Ke5 11. Rg5+ $18) 10. Rg5+ Kh4 11. Ne5 $1 {(12.Nf3#)} Qb4+ (11... h2 12. Nf3+ Kh3 13. Nf4#) 12. Kf6 Qe4 13. Ng6+ {compelling exchange No1} Qxg6+ 14. Rxg6 Nf2 15. Nd4 $1 ({ Thematic try} 15. Ng7 $2 Ng4+ $1 16. Kf5 h2 17. Rxg4+ Kh3 18. Kf4 h1=Q 19. Rg3+ Kh2 $1 $11) 15... Ng4+ $1 16. Kf5 h2 17. Rxg4+ Kh3 18. Kf4 $1 h1=Q 19. Rg3+ Kh4 (19... Kh2 20. Nf3+ {compelling exchange No2} Qxf3+) 20. Nf5+ Kh5 21. Rg5# 1-0