[Event "corr"] [Site "corr"] [Date "1978.??.??"] [Round "?"] [White "NN (?)"] [Black "Emil Joseph Diemer (?)"] [Result "0-1"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "C40"] [Opening "Elephant Gambit: Paulsen Countergambit"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 e5 2. Nf3 d5?! { (0.19 → 1.23) Inaccuracy. Nc6 was best. } (2... Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 O-O 6. O-O d5 7. Nbd2) 3. exd5 e4 { C40 Elephant Gambit: Paulsen Countergambit } 4. Qe2 Qe7 5. Nd4 Qe5 6. Nb3 f5?! { (1.33 → 2.02) Inaccuracy. Nd7 was best. } (6... Nd7 7. g3 Ngf6 8. Bg2 a5 9. a4 Bb4 10. Nc3 O-O 11. O-O) 7. d3 Nf6 8. dxe4 fxe4 9. f3?! { (1.82 → 1.05) Inaccuracy. Nc3 was best. } (9. Nc3 Nbd7 10. Be3 Bb4 11. O-O-O Bxc3 12. bxc3 O-O 13. Bd4 Qe7 14. Qb5 a5 15. Nd2 c5) 9... Bd6 10. fxe4?? { (1.30 → -1.06) Blunder. Nc3 was best. } (10. Nc3 O-O) 10... Bg4 11. Qb5+?? { (-1.14 → -4.82) Blunder. Qe3 was best. } (11. Qe3 O-O 12. Nc3 Qh5 13. Qg1 Nbd7 14. Be3 Rae8 15. Bd3 Ne5 16. Kd2 b5 17. a3 Nc4+) 11... Nbd7 12. Qxb7? { (-4.97 → -16.36) Mistake. Qc4 was best. } (12. Qc4 Nxe4) 12... Nxe4 13. Qxa8+ Kf7 14. Qxh8? { (-8.70 → Mate in 2) Checkmate is now unavoidable. Be2 was best. } (14. Be2 Rxa8) 14... Qg3+ 15. hxg3 Bxg3# { Black wins by checkmate. } 0-1