[Event "Sparkassen-Open B"] [Site "Heusenstamm, Martinsee"] [Date "2025.11.22"] [Round "4.21"] [White "Mertens, Richard"] [Black "Nguyen, Minh Anh"] [Result "1/2-1/2"] [ECO "A00"] [WhiteElo "1772"] [BlackElo "1645"] [PlyCount "50"] [EventDate "2025.11.20"] [WhiteTeam "SC Weisse Dame e.V."] [BlackTeam "SV 1920 Hofheim"] 1. e4 c5 2. Nf3 d6 3. d3 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Nbd2 Nc6 8. c3 Bg4 9. h3 Bxf3 10. Nxf3 Rc8 11. Qe2 e5 12. Nh4 d5 13. Bg5 d4 14. c4 h6 15. Bd2 a6 16. b3 b5 17. Rab1 b4 18. Bh1 a5 19. Ng2 Ra8 20. f4 a4 21. fxe5 Nxe5 22. Nf4 axb3 23. axb3 Ra3 24. Bc1 Ra5 25. Nd5 Nxd5 1/2-1/2