[Event "Jirtdan Ty"] [Site "?"] [Date "2018.??.??"] [Round "?"] [White "Rusz, Árpád"] [Black "(Study 150)"] [Result "1-0"] [Annotator "Special Commendation"] [SetUp "1"] [FEN "8/4K3/7k/8/B7/8/3P4/6n1 w - - 0 1"] [PlyCount "31"] [EventDate "2018.??.??"] {[%evp 0,31,227,225,226,211,214,232,237,239,237,237,239,239,237,239,239,237,239,331,290,340,317,319,688,695,715,715,715,725,962,992,1012,1032]} 1. d4 Nf3 (1... Ne2 2. d5 Nc3 3. d6 $1 Nxa4 4. d7 $18) 2. d5 Ne5 (2... Nd4 3. Kf6 $18) 3. d6 (3. Ke6 $2 Nc4 $11) 3... Kg5 {cyclic zugzwang - WTM. In order to win, white has to reach the same position but with black to move.} 4. Ke6 Nd3 5. Bb5 (5. d7 $2 Nc5+ $11) (5. Bc2 $2 Nc5+ 6. Kd5 Nd7 $11) 5... Nf4+ 6. Kf7 $1 ({Thematic try: It is too early for} 6. Kd7 $6 {(Position X')} Ng6 7. Bd3 $2 (7. Ke6 Nf4+ {and we are back to move 5 from the main line}) 7... Ne5+ 8. Ke6 Nxd3 9. d7 Nc5+ $11) 6... Ng6 7. Ba4 $1 (7. d7 $2 Ne5+ $11) (7. Bc6 $2 Ne5+ $11) 7... Ne5+ (7... Kf5 8. Bc2+ $18) 8. Ke7 $1 {[%CAl Ge5d3,Gd3f4,Gf4g6,Gg6e5,Ra4b5,Rb5a4,Re7e6,Re6f7,Rf7e7] cyclic zugzwang - BTM. White has managed to transfer the move to black. While the white king made a triangle manoeuvre (Ke7-e6-f7-e7, 3 moves) and the bishop a switchback (Ba4-b5-a4, 2 moves), the black knight walked on a diamond-shaped path (Ne5-d3-f4-g6-e5, 4 moves). These manoeuvres result in a tempo loss by white.} Ng6+ (8... Kf4 9. Kf6 $1 (9. Ke6 $2 Nd3 {positional draw} 10. Kd5 Ne5 11. Ke6 Nd3 {positional draw}) 9... Ke4 10. Ke6 Nd3 11. Bc2 $18 {pin}) 9. Ke6 Nf4+ 10. Kd7 $1 {(Position X)} Kf6 (10... Ng6 11. Bc2 Ne5+ 12. Ke6 $18 {Now d3 is not available for the knight. Please, compare it with the thematic try.}) 11. Kc8 $1 Nd5 12. Bb3 $1 (12. d7 $2 Nb6+ $11) 12... Ke5 $1 (12... Ke6 13. d7 $18 {pin}) 13. Kd7 $1 Nf6+ 14. Ke7 Kf5 15. Ba2 {tempo} (15. Bc4) (15. Bf7) 15... Ke5 16. Be6 1-0