Puzzles (3 cohencoins award for each match):
FEN
[Event " MrCohenOS Arena"]
[Site "https://cohenchessclub.com/Ecwsp4RC"]
[Date "2026.06.29"]
[White "xavi"]
[Black "Sadie"]
[Result "1-0"]
[UTCDate "2026.06.29"]
[UTCTime "23:10:12"]
[WhiteElo "1710"]
[BlackElo "1391"]
[WhiteRatingDiff "+2"]
[BlackRatingDiff "-3"]
[WhiteTitle "GMˈ"]
[Variant "Standard"]
[TimeControl "420+2"]
[ECO "C45"]
[Opening "Scotch Game"]
[Termination "Normal"]
[Annotator "cohenchessclub.com"]
1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 { C45 Scotch Game } Nxd4?! { (0.27 → 0.99) Inaccuracy. Nf6 was best. } (4... Nf6 5. Nxc6) 5. Qxd4 c5? { (0.81 → 2.19) Mistake. Qf6 was best. } (5... Qf6) 6. Qc3 Qe7?! { (1.73 → 2.57) Inaccuracy. Nf6 was best. } (6... Nf6 7. e5) 7. Bd3?! { (2.57 → 1.62) Inaccuracy. Qf3 was best. } (7. Qf3 Qf6 8. Nc3 Qxf3 9. gxf3 Bd6 10. f4 Bb8 11. Bd2 Ne7 12. O-O-O b6 13. Rg1 g6) 7... d5 8. Nd2 d4 9. Qb3 Be6 10. Bc4?! { (1.25 → 0.58) Inaccuracy. Qa4+ was best. } (10. Qa4+ Bd7 11. Qb3 Be6 12. Bb5+ Kd8 13. Qd3 Nf6 14. O-O a6 15. Bc4 Bxc4 16. Nxc4 Qxe4) 10... Bxc4 11. Qxc4 O-O-O 12. Nb3?? { (0.39 → -3.51) Blunder. O-O was best. } (12. O-O Qe6) 12... Qxe4+ 13. Kf1 Nh6?? { (-3.78 → -1.50) Blunder. Qf5 was best. } (13... Qf5 14. g4 Qf3 15. Rg1 Nf6 16. Rg3 Qh1+ 17. Rg1 Qd5 18. Na5 h6 19. Bf4 Bd6 20. Qxd5) 14. Bxh6 gxh6 15. Qxf7? { (-1.40 → -3.15) Mistake. Re1 was best. } (15. Re1 Qd5) 15... Re8? { (-3.15 → -1.33) Mistake. Qxc2 was best. } (15... Qxc2) 16. Qf3? { (-1.33 → -2.57) Mistake. Qc4 was best. } (16. Qc4) 16... Qxf3?? { (-2.57 → -0.61) Blunder. Qxc2 was best. } (16... Qxc2 17. g3 Qe4 18. Qxe4 Rxe4 19. Re1 Rxe1+ 20. Kxe1 Kd7 21. Kd2 Bd6 22. Re1 Rc8 23. a3) 17. gxf3 Bd6 18. Re1 Rxe1+ 19. Kxe1 c4?? { (-0.67 → 0.99) Blunder. Rg8 was best. } (19... Rg8 20. a4 Kd7 21. Nd2 Kc6 22. Ne4 h5 23. h4 Be5 24. b3 Kd5 25. Ke2 b6) 20. Nxd4 Bb4+?! { (1.11 → 1.66) Inaccuracy. Re8+ was best. } (20... Re8+) 21. c3 Bc5 22. Rg1 Re8+? { (1.29 → 2.89) Mistake. Bxd4 was best. } (22... Bxd4) 23. Kd2? { (2.89 → 1.39) Mistake. Ne2 was best. } (23. Ne2 Re6 24. Rg4 b5 25. Rh4 a6 26. f4 Be7 27. Rh5 Kd7 28. Kd2 b4 29. Rd5+ Kc6) 23... Bxd4 24. cxd4 Re7?? { (1.54 → 3.66) Blunder. Rf8 was best. } (24... Rf8 25. Rg3) 25. Rg8+?! { (3.66 → 2.63) Inaccuracy. Rc1 was best. } (25. Rc1 Rc7 26. f4 b5 27. b3 cxb3 28. axb3 Rxc1 29. Kxc1 a5 30. f5 Kd8 31. d5 Ke8) 25... Kc7 26. a3?? { (2.91 → 0.46) Blunder. Rf8 was best. } (26. Rf8 Rg7) 26... Rd7?? { (0.46 → 2.51) Blunder. Rf7 was best. } (26... Rf7) 27. Kc3 b5 28. Rf8 a5?! { (2.04 → 3.24) Inaccuracy. Re7 was best. } (28... Re7 29. h4 Re1 30. Rf7+ Kb6 31. Rxh7 Rc1+ 32. Kd2 Rf1 33. Rxh6+ Ka5 34. Rf6 Rxf2+ 35. Kc3) 29. f4 Rd6?! { (3.69 → 4.79) Inaccuracy. Rg7 was best. } (29... Rg7 30. Ra8) 30. Rf7+ Kc6 31. Rxh7?? { (4.61 → 0.41) Blunder. f5 was best. } (31. f5 Rd5 32. a4 h5 33. h4 Kd6 34. f3 Kc6 35. axb5+ Rxb5 36. f6 Rf5 37. Kxc4 Rxf3) 31... a4?? { (0.41 → 4.12) Blunder. Rf6 was best. } (31... Rf6 32. h4 Kd5 33. Re7 b4+ 34. axb4 axb4+ 35. Kxb4 Rb6+ 36. Kc3 Rb3+ 37. Kc2 Kxd4 38. Re3) 32. Rf7 Re6 33. f5 Re1?! { (3.86 → 4.88) Inaccuracy. Re2 was best. } (33... Re2 34. Rf6+ Kb7 35. Rxh6 Rxf2 36. f6 Kb6 37. h4 Rf3+ 38. Kd2 b4 39. Ke2 Rf4 40. Ke3) 34. Rf6+ Kd5?! { (4.42 → 6.52) Inaccuracy. Kc7 was best. } (34... Kc7 35. Rxh6) 35. Rxh6?? { (6.52 → 1.74) Blunder. Rb6 was best. } (35. Rb6) 35... Re2?? { (1.74 → 7.60) Blunder. Rc1+ was best. } (35... Rc1+ 36. Kd2) 36. f4?? { (7.60 → 3.26) Blunder. Rb6 was best. } (36. Rb6 Rxf2) 36... Re3+ 37. Kd2? { (2.98 → 1.67) Mistake. Kb4 was best. } (37. Kb4 Rb3+) 37... Kxd4?? { (1.67 → 8.77) Blunder. Rb3 was best. } (37... Rb3 38. Kc2 Rf3 39. Rb6 Rxf4 40. Rxb5+ Kxd4 41. Kd2 Rf2+ 42. Ke1 Rxh2 43. f6 Rh8 44. f7) 38. f6?! { (8.77 → 5.14) Inaccuracy. Rd6+ was best. } (38. Rd6+ Kc5 39. Kxe3 Kxd6 40. Kd4 Ke7 41. h4 Kd6 42. h5 Ke7 43. Kc5 Kf6 44. h6 b4) 38... c3+?! { (5.14 → 7.46) Inaccuracy. Rd3+ was best. } (38... Rd3+ 39. Ke2) 39. bxc3+ Rxc3 40. f7 Rc8 41. Rf6 Rf8 42. h4 Ke4 43. h5 Kf3 44. h6 Kg4 45. h7 Rh8? { (9.54 → Mate in 6) Checkmate is now unavoidable. Kf3 was best. } (45... Kf3 46. Kc3) 46. f8=Q Rxf8 47. Rxf8 { Black resigns. } 1-0