[Event "6th FIDE World Cup"] [Site "?"] [Date "2017.??.??"] [Round "?"] [White "Rusz, Árpád"] [Black "(Study 147)"] [Result "1-0"] [Annotator "2nd Prize"] [SetUp "1"] [FEN "4K3/8/4k3/8/4P3/8/1N2n2N/8 w - - 0 0"] [PlyCount "21"] 1. Nf3 $1 {Asymmetry} ({Thematic try:} 1. Nd3 $2 Nf4 $1 2. Nc5+ (2. Nxf4+ Ke5 $11) 2... Kd6 3. Nd7 Ne6 4. e5+ Kd5 5. Kf7 $1 Nc5 6. Ng4 $1 Nxd7 7. e6 Nb6 8. Ne3+ (8. e7 Nc8 9. e8=Q Nd6+ $11) 8... Kc5 9. Ke7 $1 Nc8+ 10. Kd7 Nb6+ 11. Kd8 {(Position X') In this position, black has a saving manoeuvre!} Nc8 $1 12. Nc4 $1 (12. Kxc8 Kd6 $11) 12... Na7 $3 {Black uses the extra file on the longer flank!} (12... Kd5 $2 13. Kd7 $18) 13. Na5 (13. e7 Nc6+ $11) 13... Nc8 $1 14. Nc4 Na7 15. Ne5 Nc8 $1 16. Nc4 Na7 {positional draw}) 1... Nd4 $1 (1... Ng3 2. e5 Nf5 3. Nd3 Nd6+ 4. Kf8 $18) 2. Ng5+ (2. Nxd4+ $2 Ke5 $11) 2... Kf6 3. Nf7 Ne6 4. e5+ Kf5 5. Kd7 $1 (5. Ke7 $2 Ng5 6. Nc4 Nf3 $11) 5... Ng5 6. Nc4 $1 (6. Nxg5 $2 Kxe5 $11) 6... Nxf7 7. e6 Nh6 {By sacrificing its h2 knight white had managed to keep the black knight on the shorter flank.} (7... Kf6 8. e7 $18) 8. Ne3+ $1 (8. e7 $2 Ng8 9. e8=Q Nf6+ $11) 8... Kg5 9. Ke7 $1 Ng8+ (9... Kf4 10. Kf8 $1 $18) 10. Kf7 (10. Kf8 $2 Kf6 $1 $11) 10... Nh6+ 11. Kf8 {(Position X) In the thematic try we saw a symmetrical position (Position X') but now black doesn't have a saving manoeuvre which starts with a knight sacrifice. There is no extra file next to the h-file!} 1-0