Found 4 crucial moments (2 blunders, 2 missed opportunitys).
You had a chance to seize a positional advantage with cxd4! This opens the c-file and challenges White's control of the center. Followed by Re1, you would put pressure on the e-file. White's likely response of a6 can be met with Bb3, further developing your pieces while solidifying your position. This sequence yields a more favorable game state.
You had a chance to play Ndc2, a fantastic discovered attack! This move forces Qe2, and after Nxa1 you win a rook after cxb4. This sequence would have significantly improved your position.
Bf5 is a mistake because it allows Qb3+, forcing e6. After Nxe6 Bxe6, White has a decisive advantage. Qd5 is better because it develops the queen with tempo, and after Re1 h6 Ne4, Black can still fight for equality.
BLUNDER: You hung your Rook. The opponent can simply take it with Rexd1.
Rd7 is superior because the best line is Rd7 a4 a5 Re6. Your move instead walks into Rexd1 Bxd1 Rxd1 b5, objectively losing the game. You were objectively lost here, but this move might have set a practical trap.
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[Event "Live Chess"]
[Site "Chess.com"]
[Date "2026.03.04"]
[White "harr_25"]
[Black "erivera90"]
[Result "0-1"]
1. e4 {+0.36} c5 {+0.43} 2. Bc4 {-0.05} g6 {+0.37} 3. Nf3 {+0.32} Bg7 {+0.39} 4.
O-O {+0.19} Nc6 {+0.24} 5. Na3 {-0.32} Nf6 {-0.24} 6. d3 {-0.29} d5 {-0.29} 7.
exd5 {-0.29} Nxd5 {-0.50} 8. Ng5 {-0.99} O-O {-1.07} 9. d4 {-2.53} Nxd4 $6
{+0.16 Missed Positional · best: cxd4} 10. Bd3 {-1.85} Nb4 {-2.10} 11. Bxg6
{-4.53} fxg6 {-4.29} 12. c3 {-4.10} Nbc2 $6 {-0.07 Missed Discovered Attack ·
best: Ndc2} 13. Nxc2 {+0.00} Nxc2 {+0.04} 14. Qxc2 {+0.18} Bf5 $4 {+2.28
Positional · Qb3+} 15. Ne6 {-5.32} Bxc2 {-5.30} 16. Nxd8 {-5.14} Raxd8 {-5.22}
17. Bg5 {-5.26} Rfe8 {-5.08} 18. Rfe1 {-5.25} Rd1 $4 {+1.05 Positional · Rexd1}
19. Raxd1 {+1.11} Bxd1 {+0.86} 20. Rxd1 {+0.81} Bf6 {+0.48} 21. Bh6 {+0.22} e5
{+0.45} 22. Rd5 {+0.34} b6 {+0.38} 23. Rd7 {+0.13} a5 {+1.22} 24. a4 {+1.11} c4
{+2.01} 25. Rc7 {+1.56} Rd8 {+1.74} 26. g3 {+1.25} Rd1+ {+1.36} 27. Kg2 {+1.65}
g5 {+1.74} 28. b4 {-4.89} cxb3 {-5.10} 29. Rc8+ {-5.26} Kf7 {-5.46} 30. Rc7+
{-5.75} Kg6 {-5.64} 31. Bf8 {-7.79} b2 {-10.57} 32. Ba3 {#-6} b1=Q {#-5} 33. Bf8
{#-3} Qe4+ {#-3} 34. Kh3 {#-1} 0-1