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Puzzles (3 cohencoins award for each match):

Puzzle g7PPW: 999999999

NM Ryker (1154?) +51
FEN
[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/JYYFbQCD"] [Date "2025.08.12"] [White "Robbie3"] [Black "Ryker"] [Result "0-1"] [UTCDate "2025.08.12"] [UTCTime "14:32:35"] [WhiteElo "1233"] [BlackElo "1154"] [WhiteRatingDiff "-19"] [BlackRatingDiff "+51"] [WhiteTitle "NM"] [BlackTitle "NM"] [Variant "Standard"] [TimeControl "420+2"] [ECO "C23"] [Opening "Bishop's Opening"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 e5 2. Bc4?! { (0.60 → -0.05) Inaccuracy. Nf3 was best. } { C23 Bishop's Opening } (2. Nf3 Nc6 3. Bb5 Nge7 4. O-O Ng6 5. d4 exd4 6. Nxd4 Bc5 7. Nf5 O-O 8. Nc3 a6) 2... Qh4?! { (-0.05 → 0.88) Inaccuracy. Nf6 was best. } (2... Nf6 3. Nc3 Bc5 4. Nf3 d6 5. O-O a5 6. d4 exd4 7. Nxd4 O-O 8. h3 h6 9. Nf3) 3. Nf3?! { (0.88 → 0.27) Inaccuracy. Qe2 was best. } (3. Qe2 d6) 3... Qxe4+ 4. Be2 b6? { (0.15 → 1.70) Mistake. Qf5 was best. } (4... Qf5 5. Nc3 e4 6. Nh4 Qf6 7. g3 d5 8. Nxd5 Qd8 9. Nc3 Nf6 10. O-O Bc5 11. d3) 5. Nc3 Qc6?? { (1.21 → 3.52) Blunder. Qb7 was best. } (5... Qb7 6. O-O e4 7. Ng5 d5 8. d3 h6 9. Nxf7 Kxf7 10. dxe4 c6 11. Re1 Nf6 12. exd5) 6. O-O?! { (3.52 → 2.62) Inaccuracy. Nxe5 was best. } (6. Nxe5 Qb7) 6... e4?! { (2.62 → 3.91) Inaccuracy. Bb7 was best. } (6... Bb7 7. Re1) 7. Nh4?? { (3.91 → 1.80) Blunder. d3 was best. } (7. d3 d6) 7... Qc5? { (1.80 → 3.77) Mistake. Bb4 was best. } (7... Bb4 8. Bb5 Qf6 9. Qg4 Bb7 10. Nxe4 Qe5 11. Nc3 Bxc3 12. bxc3 h5 13. Qd4 Qxd4 14. cxd4) 8. Nxe4 Qe5 9. Nc3 Bd6 10. Re1?? { (4.74 → Mate in 2) Checkmate is now unavoidable. g3 was best. } (10. g3 Bb7) 10... Qxh2+ 11. Kf1 Qh1# { Black wins by checkmate. } 0-1
Computer analysisMove timesCrosstableFEN & PGN
Reconnecting