[Event "BL 2025-26"] [White "Bluebaum,Matthias"] [Black "Duda,Jan-Krzysztof"] [Site "Germany"] [Round "4.1"] [Annotator "TA"] [Result "1/2-1/2"] [Date "2025.12.07"] [WhiteElo "2679"] [BlackElo "2729"] [PlyCount "63"] [TimeControl "60"] {[%evp 18,62,4,0,0,0,0,16,9,11,24,0,4,0,17,23,20,12,12,12,16,2,7,8,32,42,22,33,39,14,25,22,20,13,44,0,0,0,0,0,0,1,4,0,0,0,0]} 1. d4 {[%emt 0:59:8]} d5 {[%emt 0:0:5]} 2. c4 {[%emt 0:0:9]} c6 {[%emt 0:0:5]} 3. Nc3 {[%emt 0:0:23]} Nf6 {[%emt 0:0:7]} 4. e3 {[%emt 0:0:8]} e6 {[%emt 0:0:8]} 5. Nf3 {[%emt 0:0:31]} Nbd7 {[%emt 0:0:8]} 6. Qc2 {[%emt 0:0:23]} Bd6 {[%emt 0:0:9]} 7. Be2 {[%emt 0:1:7]} O-O {[%emt 0:0:12]} 8. O-O {[%emt 0:0:7]} dxc4 {[%emt 0:6:19]} 9. a4 {[%emt 0:0:35]} e5 {[%emt 0:1:11]} 10. Bxc4 {[%emt 0:3:48]} exd4 {[%emt 0:2:58] D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran.} 11. exd4 {[%emt 0:0:27]} Nb6 {[%emt 0:1:2]} 12. Bb3 {[%emt 0:0:6] A sharp opening} Nbd5 {[%emt 0:11:41]} 13. Bg5 {[%emt 0:2:47]} Be6 {[%emt 0:0:50]} 14. Bxd5 {[%emt 0:0:19]} cxd5 {[%emt 0:5:46]} 15. Qb3 $146 {[%emt 0:0:21]} ({Predecessor:} 15. a5 a6 16. Bh4 Rc8 17. Qb3 Rb8 18. Ne5 Bxe5 19. dxe5 d4 20. Qa3 dxc3 21. exf6 {½-½ Nezad,H (2380)-Andersen,M (2587) Olympiad-44 Chennai 2022 (1.1)} )Qb6 {[%emt 0:6:47]} 16. Qxb6 {[%emt 0:0:45]} axb6 {[%emt 0:0:4]} 17. Bxf6 {[%emt 0:0:5]} gxf6 {[%emt 0:0:8]} 18. Ne1 {[%emt 0:0:4][%cal Yf3e1,Ye1d3,Yd3c5][%mdl 32]} Bb4 {[%emt 0:13:18]} 19. Nd3 {[%emt 0:13:20]} Bxc3 {[%emt 0:0:18]} 20. bxc3 {[%emt 0:0:2]} Rfc8 {[%emt 0:0:8]} 21. Rfc1 {[%emt 0:11:49]} b5 {[%emt 0:8:50]} 22. a5 {[%emt 0:12:27]} Rc4 {[%emt 0:0:23]} 23. Nc5 {[%emt 0:10:19]} b4 {[%emt 0:3:27]} 24. cxb4 {[%emt 0:3:59]} Rxb4 {[%emt 0:0:7]} 25. f3 {[%emt 0:2:32]} Kg7 {[%emt 0:8:38]} 26. Rab1 Rxb1 {The position is equal.} 27. Rxb1 Rxa5 28. Rxb7 $11 {KRB-KRN} Ra1+ 29. Kf2 Ra2+ 30. Ke3 Kh6 31. Rb6 Rxg2 32. Nxe6 {Weighted Error Value: White=0.07 (flawless) /Black=0.04 (flawless) Inaccurate: White=1 Black=1 OK: White=1 Black=3 Best: White=1 Black=1} 1/2-1/2