[Event "GM Barbosa simul"] [Site "https://lichess.org/0cIx7xx6"] [Date "2020.05.08"] [White "stobal_13"] [Black "kakak"] [Result "0-1"] [UTCDate "2020.05.08"] [UTCTime "14:03:16"] [WhiteElo "1816"] [BlackElo "1500"] [Variant "Standard"] [TimeControl "3600+5"] [ECO "D85"] [Opening "Grünfeld Defense: Exchange Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 { D85 Grünfeld Defense: Exchange Variation } 5. Nf3 Bg7 6. e3 O-O 7. Be2 c5 8. O-O Nc6 9. Nxd5 Qxd5 10. dxc5 Qxc5 11. a3?! { (-0.43 → -1.37) Inaccuracy. Bd2 was best. } (11. Bd2 Bxb2) 11... Rd8 12. Qb3?! { (-1.42 → -2.18) Inaccuracy. Qa4 was best. } (12. Qa4 Be6 13. Bd2 Bxb2 14. Rab1 Qxa3 15. Qc2 Bf6 16. Rxb7 Rac8 17. Bc1 Qa5 18. Bd2 Qd5) 12... Be6 13. Qxb7? { (-1.65 → -2.98) Mistake. Qa4 was best. } (13. Qa4 a6) 13... Na5 14. Qb5 Qxb5 15. Bxb5 Nb3 16. Rb1 Bf5 { White resigns. } 0-1