Found 5 crucial moments (4 blunders, 1 missed opportunity).
The g3 move is a mistake because it allows Bf3, forking the knight on c3 and the pawn on e4. This leads to a loss of material after Rh2 and dxe4 dxe4. cxd5 is superior because it opens the position and develops with tempo.
You had a chance to seize a significant positional advantage with f5! This pawn push cramps Black's position and opens lines for your pieces. The engine suggests a strong continuation of f5, followed by Rg8, and then Bf4, putting significant pressure on Black's queen. If Black responds with Qd7, you'll continue to gain space and initiative. This entire sequence would have improved your position substantially!
BLUNDER: You hung your Knight on e4. The opponent can simply take it with Nxe4. N1e2 is superior because it avoids this immediate loss of material. After N1e2 h4, the position is still complex, but you haven't gifted your opponent a free piece.
BLUNDER: You hung your Pawn on g3. The opponent can simply take it with Qxg3+, leading to Kh1 and Qh2# for a forced mate in 2. Ne2 prevents this immediate threat and allows for continued play (Ne2 e3 Be1 h4).
The move b4 is a mistake because of Qe3+. After Qe3+ Kh1 hxg3+ Kg2, a forced mate occurs. Qd4 is superior as the engine's best move because it avoids immediate checkmate.
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[Event "Live Chess"]
[Site "Chess.com"]
[Date "2026.03.15"]
[White "erivera90"]
[Black "SuperHachimitsu"]
[Result "0-1"]
1. c4 {+0.06} c6 {+0.44} 2. Nc3 {+0.30} d5 {+0.38} 3. e4 {-0.80} Nf6 {+0.26} 4.
d3 {-0.72} Bg4 {+0.41} 5. Nge2 {-0.76} e6 {+0.41} 6. h3 {-0.15} Bh5 {+0.62} 7.
g3 $4 {-1.84 Fork · Bf3} h6 {+0.11} 8. Bg2 {-0.17} g5 {+1.47} 9. O-O {-0.09} Bd6
{+1.23} 10. f4 {+0.32} g4 {+2.21} 11. e5 {+1.64} gxh3 {+1.52} 12. Bxh3 {+1.30}
Bg4 {+3.07} 13. Bxg4 {+3.45} Nxg4 {+3.35} 14. exd6 {+3.31} Qxd6 {+3.35} 15. d4
{+2.08} Nd7 {+3.36} 16. c5 {+1.95} Qc7 {+2.30} 17. Bd2 {+1.74} Ndf6 {+2.71} 18.
Nc1 $6 {+0.43 Missed Positional · best: f5} h5 {+0.52} 19. Ne4 $4 {-4.88 Hanging
Piece · Nxe4} dxe4 {-4.18} 20. f5 $4 {#-2 Back-Rank Mate · Qxg3+} e5 {-3.62} 21.
dxe5 {-4.71} Qxe5 {-4.89} 22. Qb3 {-6.23} h4 {-4.64} 23. Bg5 {-5.59} b5 {-3.65}
24. Bxf6 {-4.16} Qxf6 {-4.37} 25. Qd1 {-6.04} Qg5 {-3.29} 26. b4 $4 {#-3 Forced
Mate · Qe3+} h3 {-3.69} 27. Qe2 {-5.12} O-O-O {-4.36} 28. Qxe4 {-4.78} h2+
{-4.57} 29. Kg2 {-4.73} h1=Q+ {-4.77} 30. Rxh1 {-5.14} Rxh1 {-6.02} 31. Kxh1
{#-7} Nf2+ {#-6} 32. Kg2 {#-6} Nxe4 {#-5} 33. Kf1 {#-3} Qd2 {#-3} 34. Ne2 {#-3}
Nxg3+ {#-5} 35. Nxg3 {#-5} Qf4+ {#-4} 36. Kg2 {#-3} Rd2+ {#-7} 37. Kh3 {#-7}
Qh6+ {#-8} 38. Kg4 {#-8} Rd4+ {#-6} 39. Kf3 {#-6} Qf4+ {#-8} 40. Ke2 {#-2} Qxg3
{#-6} 41. Re1 {#-4} Re4+ {#-3} 42. Kd1 {#-3} Rxe1+ {#-3} 43. Kd2 {#-3} Qa3
{-85.61} 44. Kc2 {#-3} Qxa2+ {#-2} 45. Kc3 {#-2} Qa3+ {#-3} 46. Kd4 {#-1} Rd1+
{#-4} 47. Ke5 {#-4} Qe3+ {#-3} 48. Kf6 {#-3} Qh6+ {#-2} 49. Ke5 {#-2} Rd8 {#-4}
50. Ke4 {#-4} Re8+ {#-3} 51. Kd4 {#-1} Qf6+ {#-3} 52. Kd3 {#-3} Qxf5+ {#-3} 53.
Kd4 {#-3} Qd5+ {#-3} 54. Kc3 {#-3} f6 {#-2} 55. Kc2 {#-2} f5 {#-3} 56. Kc3 {#-3}
f4 {#-2} 57. Kc2 {#-2} f3 {#-3} 58. Kc3 {#-3} f2 {#-2} 59. Kc2 {#-2} Qc4+ {#-2}
60. Kd2 {#-2} Qxb4+ {#-2} 61. Kd3 {#-2} f1=Q+ {#-1} 62. Kc2 {#-1} Qbc4+ {#-1}
63. Kd2 {#-1} Qf2+ {#-1} 64. Kd1 {#-1} Re1# {#-0} 0-1