[Event "Sachova Skladba"] [Site "?"] [Date "2017.??.??"] [Round "?"] [White "Rusz, Árpád"] [Black "(Study 135)"] [Result "1/2-1/2"] [SetUp "1"] [FEN "k6N/8/6p1/8/5P2/p2b4/8/2K5 w - - 0 1"] [PlyCount "17"] [EventDate "2016.??.??"] 1. Nf7 (1. Nxg6 $2 Bxg6 2. f5 Bxf5 $19) 1... Kb7 2. Ne5 Bf5 3. Nc4 Kc6 $1 (3... a2 4. Kb2 $11) 4. Nxa3 Kc5 5. Kb2 $1 (5. Nc2 $2 Bxc2 6. Kxc2 Kc4 $1 {mutual zugzwang} (6... Kd4 $2 7. f5 $1 gxf5 8. Kd2 {mutual zugzwang} Ke4 9. Ke2 { mutual zugzwang} Kf4 10. Kf2 {mutual zugzwang} Kg4 11. Kg2 {mutual zugzwang} f4 12. Kf2 f3 13. Kf1 Kg3 14. Kg1 {mutual zugzwang} f2+ 15. Kf1 {mutual zugzwang} Kf3 {chameleon echo stalemate}) 7. Kd2 Kd4 8. Ke2 Ke4 9. Kf2 (9. f5 gxf5 $19) 9... Kxf4 10. Kg2 Kg4 $1 (10... g5 $2 11. Kf2 Kg4 12. Kg2 Kh4 13. Kh2 g4 14. Kg2 g3 15. Kg1 Kh3 16. Kh1 g2+ 17. Kg1 Kg3 {chameleon echo stalemate}) 11. Kh2 Kf3 12. Kh3 g5 13. Kh2 g4 14. Kg1 Kg3 $1 15. Kh1 Kf2 $19) 5... Kb4 6. Ka1 $3 { mutual zugzwang - corresponding squares(K/B)} ({Thematic try:} 6. Ka2 $2 Be4 $1 {mutual zugzwang} 7. Kb2 Bd3 $1 $19 {mutual zugzwang}) 6... Be4 (6... Kxa3 { stalemate}) 7. Ka2 $1 Bd3 8. Kb2 Bf5 9. Ka1 $1 {positional draw - fortress} 1/2-1/2