[Event "ruszchessstudies.blogspot.com"] [Site "?"] [Date "2026.??.??"] [Round "?"] [White "Rusz, A."] [Black "?"] [Result "1-0"] [Annotator "Rusz"] [SetUp "1"] [FEN "8/4p1p1/6p1/2k5/4P3/8/2P3P1/4K3 w - - 0 1"] [PlyCount "89"] [GameId "2275281975476577"] [SourceVersionDate "2026.02.08"] 1. c3 Kc4 2. Kd2 Kb3 3. Kd3 e5 {White would like to reach the same position with BTM.} 4. Kd2 $1 (4. g3 $2 g5 5. g4 g6 6. Kd2 Kc4 7. Kc2 Kb5 $1 8. Kb3 Kc5 9. c4 Kd4 10. Kb4 Kxe4 11. c5 Kf3 12. c6 e4 13. c7 e3 14. c8=Q e2 15. Qc1 Kf2 16. Qd2 Kf1 {and draw because it is forbidden for the queen to use the f4 square.}) 4... Ka4 $1 (4... Kc4 5. Kc2 $18) (4... Ka3 5. Kc2 $18) 5. Ke2 $1 {Grigoriev's triangulation} ({or} 5. Ke3) 5... Ka3 6. Ke3 $1 Ka4 7. Kd2 Kb5 (7... Kb3 8. Kd3 {and white managed to lose a tempo.} g5 9. Kd2 Ka4 10. Ke2 Ka3 11. Ke3 Ka4 12. Kd2 Kb3 13. Kd3 {and so on.}) 8. Kc1 $1 {Tattersall's triangulation} (8. Kc2 $6 Kc4 9. Kd2 Kb5 {loss of time}) 8... Kc5 9. Kb2 Kc4 10. Kc2 g5 11. Kd2 Kb5 (11... Kb3 12. Kd3 $18) 12. Kc1 $1 Kc5 13. Kb2 Kc4 14. Kc2 g4 15. Kd2 Kb5 (15... Kb3 16. Kd3 $18) 16. Kc1 $1 Kc5 17. Kb2 Kc4 18. Kc2 g3 19. Kd2 Kb5 20. Kc1 $1 Kc5 21. Kb2 Kc4 22. Kc2 g6 23. Kd2 Kb5 24. Kc1 $1 Kc5 25. Kb2 Kc4 26. Kc2 g5 27. Kd2 Kb5 28. Kc1 $1 Kc5 29. Kb2 Kc4 30. Kc2 g4 31. Kd2 Kb5 32. Kc1 $1 Kc5 33. Kb2 Kc4 34. Kc2 Kb5 35. Kb3 Kc5 36. c4 Kd4 37. Kb4 Kxe4 38. c5 Kd5 39. Kb5 e4 40. c6 Kd6 41. Kb6 e3 42. c7 e2 43. c8=Q e1=Q 44. Qd8+ Ke6 45. Qe8+ 1-0