[Event "US Open - Invitationals"] [Site "Middleton, WI, United States"] [Date "2025.07.29"] [Round "1.4"] [White "Inumerable, Florentino"] [Black "Enkhbat, Tegshsuren"] [Result "1/2-1/2"] [WhiteElo "2022"] [BlackElo "2394"] [BlackTeam "USA"] [Variant "Standard"] [Annotator "WGM Sabina Foisor"] [WhiteClock "0:03:14"] [BlackClock "0:19:25"] [ECO "D32"] [Opening "Tarrasch Defense: Two Knights Variation"] [StudyName "125th US Open Rds 1-4 and Invitationals"] [ChapterName "Inumerable, Florentino - Enkhbat, Tegshsuren"] [ChapterURL "https://lichess.org/study/foytapOs/Y2GXO7Lq"] [Orientation "white"] 1. d4 d5 2. Nf3 e6 3. c4 c5 4. cxd5 exd5 5. Nc3 Nc6 6. e3 Nf6 7. Ne5 Bd6 8. Bb5 Qc7 9. Qa4 cxd4 10. exd4 O-O 11. Nxc6 bxc6 12. Bxc6 Rb8 13. a3 Rb6 14. Bb5 Bxh2 15. Bd3 h6 (15... Re8+ { This could have built up to a nice finish! } 16. Kf1 Bd7! { An important inclusion, both to make sure the e8-rook is protected and to finish development. } (16... h6?? { This is a bit soon as it allows } 17. Nxd5! { [%csl Bf6,Bc7,Bb6,Be8][%cal Ya4e8] }) 17. Qc2 h6 { A nice prophylactic idea that stops all attacks on h7 as well as restricts the g5-bishop. If White continues with the natural } 18. Bd2 Nh5! { could be the follow-up that allows the rook to be brought into the attack on f6 and with ... Nh5-g3 mating ideas. This position is really difficult for White to defend considering the f1-king is stuck in various mating nets. } 19. Ne2 (19. Nxd5 { does not work } 19... Qxc2 20. Bxc2 Bb5+ 21. Bd3 Bxd3#) 19... Rc6 20. Qb3 Rf6 $19) 16. Qc2 Re8+ 17. Kf1 Bf4? { Now Black gives away a lot of their advantage, as this not only helps White develop, but it also takes their king out of the mating net. } (17... Ng4 18. Qa4 Bd7) 18. Bd2 Bxd2 19. Qxd2 Ba6 20. Bxa6 Rxa6 21. g3 Rae6 22. Kg2 Ne4 23. Nxe4 Rxe4 24. Rhe1 Qe7 25. Rxe4 Qe6 26. Re5 Qxe5 27. Kg1 Qe4 28. Rc1 h5 29. Qf4 h4 30. g4 { Draw. } 1/2-1/2