[Event "ch-Frankfurt A"] [Site "Frankfurt"] [Date "2023.04.24"] [Round "1"] [White "Mueller, Jens"] [Black "Bischoff, Ulrich"] [Result "1/2-1/2"] [ECO "B01"] [WhiteElo "1413"] [BlackElo "1964"] [PlyCount "47"] [EventDate "2023.04.24"] [EventType "swiss"] [EventCountry "GER"] 1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 g6 5. c4 Nb6 6. Be2 Bg7 7. O-O O-O 8. Nc3 c5 9. Be3 cxd4 10. Bxd4 Nc6 11. Bxg7 Kxg7 12. Rc1 e5 13. c5 Nd7 14. Ne4 Nf6 15. Nd6 Qe7 16. Bc4 Be6 17. Qe2 Bxc4 18. Qxc4 Ne8 19. Ne4 f5 20. Nc3 Nf6 21. Rfd1 Rfd8 22. Ng5 Rxd1+ 23. Rxd1 Nd4 24. Re1 1/2-1/2