← Back to Index

Analysis: matvkarp vs erivera90

Date: 2026.03.09 | Event: Live Chess | Site: Chess.com
Analyze on Lichess

Evaluation

-8 -4 +0 +4 +8 1 5 10 15 20 25 30 35 Qb6 (-1.0) Missed Bxd4 (+4.9) Blunder Rd8 (-1.2) Missed Qxa6 (+5.9) Blunder
Your moves Opponent moves

Found 4 crucial moments (2 blunders, 2 missed opportunitys).

Moment 1 — Missed Opportunity MAJOR ↗

Missed Positional 
r . . q . r k .
. p . . . p b p
p . . N p . p .
. . . p . . . .
. n . P n B b .
. . . . . N P .
P P . . . P B P
R . . Q R . K .
FEN: r2q1rk1/1p3pbp/p2Np1p1/3p4/1n1PnBb1/5NP1/PP3PBP/R2QR1K1 b - - 1 14
You Played: Qb6
You Could Have Played: Nxd6
Eval Swing: -439 cp
Variation: Nxd6 Qd2 Nc6 Ne5
You could have played: Nxd6 Qd2 Nc6 Ne5

Coach Explanation

You had a chance to seize a significant positional advantage with Nxd6!

This move immediately improves your position because after Qd2, Nc6 forces White to respond to the threat against the queen. Then, Ne5 exerts even more pressure. This sequence would have swung the game heavily in your favor.

Moment 2 — Blunder CRITICAL ↗

Fork 
r . . . . r k .
. p . . . p b p
p q . . p . p .
. . . . . . . .
. n . P R B b .
. . . . . N P .
P P . . . P B P
R . . Q . . K .
FEN: r4rk1/1p3pbp/pq2p1p1/8/1n1PRBb1/5NP1/PP3PBP/R2Q2K1 b - - 0 16
You Played: Bxd4
Engine Best: Rac8
Eval Swing: -572 cp
Variation: Rac8 Qb3
CRITICAL: Your move allowed the opponent to immediately capture your Black Bishop on d4.
Refutation: Qxd4 Qxd4 Nxd4 a5

Coach Explanation

BLUNDER: You hung your Bishop. The opponent can simply take it with Qxd4.

Rac8 is superior because after Rac8, the opponent's best continuation is only Qb3, avoiding immediate material loss.

Moment 3 — Missed Opportunity MAJOR ↗

Missed Positional 
r . . . . q k .
. p . . . p . p
p . . . . . p .
. . . . . . . .
. n . . R . . .
. . . . . . P .
P P . . . P B P
. . . R . . K .
FEN: r4qk1/1p3p1p/p5p1/8/1n2R3/6P1/PP3PBP/3R2K1 b - - 0 21
You Played: Rd8
You Could Have Played: Nc6
Eval Swing: -356 cp
Variation: Nc6 Re3 Rd8 Rxd8
You could have played: Nc6 Re3 Rd8 Rxd8

Coach Explanation

You had a chance to gain a significant positional advantage with Nc6! This move exploits a weakness. If White responds with Re3, you can then play Rd8. After Rxd8, you will have improved your position substantially. This sequence would have shifted the game's momentum in your favor.

Moment 4 — Blunder MAJOR ↗

Hanging Piece 
. . . . . . k .
. . . . . p . p
R . . . q . p .
. . . . . . . .
. . . . . . . .
. . . . . . P .
P P . . . P . P
. . . . . B K .
FEN: 6k1/5p1p/R3q1p1/8/8/6P1/PP3P1P/5BK1 b - - 0 27
You Played: Qxa6
Engine Best: Qe7
Eval Swing: -444 cp
Variation: Qe7
CRITICAL: Your move allowed the opponent to immediately capture your Black Queen on a6.
Refutation: Bxa6 Kf8 h4 h6

Coach Explanation

BLUNDER: You hung your Queen. The opponent can simply take it with Bxa6. Qe7 is superior because it avoids immediate capture and prepares to defend.

Recurring Patterns


This game reinforces the established pattern of material oversights, specifically hanging pieces. The blunders in this game – a hung Bishop and a hung Queen – directly align with previous instances of failing to protect valuable pieces. While hanging pieces weren't the most frequent tactic type overall, this game highlights a serious recurrence of that specific, devastating error. The repeated missed opportunities for positional advantage also continue a troubling trend.

Annotated PGN

Copy this PGN to paste into Lichess, ChessBase, or any analysis tool.

[Event "Live Chess"] [Site "Chess.com"] [Date "2026.03.09"] [White "matvkarp"] [Black "erivera90"] [Result "1-0"] 1. e4 {+0.34} c5 {+0.43} 2. Nf3 {+0.42} Nc6 {+0.38} 3. g3 {+0.01} g6 {-0.04} 4. Bg2 {-0.11} Bg7 {-0.08} 5. O-O {-0.05} Nf6 {+0.08} 6. c3 {-1.21} O-O {+0.03} 7. d4 {-0.32} cxd4 {+0.15} 8. cxd4 {-0.35} Nxe4 {-0.09} 9. Re1 {-1.21} d5 {-1.30} 10. Be3 {-1.72} Bg4 {-1.91} 11. Nc3 {-2.71} e6 {-3.00} 12. Nb5 {-3.22} Nb4 {-1.45} 13. Bf4 {-2.54} a6 {-2.59} 14. Nd6 {-5.42} Qb6 $6 {-1.04 Missed Positional · best: Nxd6} 15. Nxe4 {-0.90} dxe4 {-0.89} 16. Rxe4 {-0.79} Bxd4 $4 {+4.92 Fork · Qxd4} 17. Nxd4 {-4.32} Bxd1 {-4.04} 18. Bc7 {-6.21} Qxc7 {-6.12} 19. Nxe6 {-7.01} Qe7 {-5.17} 20. Nxf8 {-5.24} Qxf8 {-4.71} 21. Rxd1 {-4.74} Rd8 $6 {-1.17 Missed Positional · best: Nc6} 22. Rxd8 {-1.33} Qxd8 {-1.27} 23. Rxb4 {-1.12} Qd1+ {-0.89} 24. Bf1 {-0.92} Qd6 {+0.10} 25. Rxb7 {+0.02} Qe5 {+0.24} 26. Ra7 {+0.00} Qe6 {+1.46} 27. Rxa6 {+1.88} Qxa6 $4 {+5.93 Hanging Piece · Bxa6} 28. Bxa6 {+5.76} f5 {+5.85} 29. b4 {+5.72} Kf7 {+5.80} 30. b5 {+5.93} Ke8 {+6.31} 31. b6 {+6.61} Kd8 {+7.18} 32. b7 {+5.66} Kc7 {+6.45} 33. h4 {+7.02} Kb6 {+7.31} 34. b8=Q+ {+84.06} Kxa6 {#15} 35. Qd6+ {#16} 1-0