[Event "German Masters 2023"] [White "Noe,Christopher"] [Black "Donchenko,Alexander"] [Site "Rosenheim"] [Round "3.1"] [Annotator "TA"] [Result "0-1"] [Date "2023.12.11"] [WhiteElo "2528"] [BlackElo "2634"] [PlyCount "68"] [TimeControl "60"] {[%evp 11,68,8,8,8,18,10,21,10,29,18,14,0,32,3,7,7,0,0,8,-9,18,-19,14,21,32,11,10,-27,-29,-29,18,2,4,6,18,6,18,18,18,0,0,-39,-33,-107,-106,-110,-115,-175,-203,-322,-323,-659,-651,-611,-597,-604,-581,-534,-521]} 1. d4 Nf6 2. Nf3 g6 3. b3 Bg7 4. Bb2 O-O 5. e3 d6 6. Be2 b6 7. c4 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} Bb7 8. Nc3 e5 $5 {[%mdl 4] [#] An interesting side line.} 9. d5 $146 {The position is equal.} (9. dxe5 {with more complications.} dxe5 10. Nxe5 Bxg2 11. Rg1 )({Predecessor:} 9. dxe5 dxe5 10. Nxe5 Bxg2 11. Rg1 Qe7 12. Bf3 Qxe5 13. Rxg2 c6 14. Qe2 Nfd7 15. O-O-O {1-0 Bondar,D-Mertens,H Canarias en Red prel 5th blitz 2004 (11)} )a5 10. Qc2 Na6 11. a3 Bc8 12. Rb1 Bf5 13. e4 Bd7 14. O-O Nh5 15. Ne1 f5 16. Nd3 Nc5 17. Nxc5 bxc5 18. Bxh5 gxh5 19. exf5 Bxf5 20. Ne4 Kh8 (20... a4 $142 )21. f3 Qe8 22. Bc3 Qg6 23. Kh1 Bh6 24. Rbe1 h4 (24... Bf4 {keeps more tension.} 25. a4 h4 26. Re2 Rg8 )25. Qe2 (25. a4 {is more complex.} Bf4 26. Re2 Rg8 27. Be1 )Rf7 26. h3 Rb8 {[%cal Ya8b8,Yb8b3,Yb3d3,Yd3d4][%mdl 32]} 27. Bxa5 ({Better is} 27. Qd1 $15 )Rxb3 $17 28. Qa2 Rd3 {Hoping for ...Bxe4. Black is more active.} 29. Nf2 (29. Qc2 $17 {is a better defense.} Rd4 30. Qb3 )Rd4 $1 $19 {And now ...Qg3 would win.} 30. Bc3 {[#]} (30. Ne4 $142 )Bf4 $1 {[%cal Yg6g3] ( -> ...Qg3!)} ({Weaker is} 30... Rg7 31. Ng4 Bf4 32. Bxd4 cxd4 33. a4 $17 )31. Bxd4 $2 {[#]} (31. Ne4 Rd3 32. Ba5 )Qg3 $1 {[%csl Gf4][%cal Rg3h2] Black is clearly winning.} 32. Ng4 {Prevents Qh2+.} cxd4 33. Qf2 h5 34. Qxg3 hxg3 {Weighted Error Value: White=0.40/Black=0.06 (flawless)} 0-1