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Analysis: erivera90 vs Conchitilla

Date: 2026.03.06 | Event: Live Chess | Site: Chess.com
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Evaluation

-8 -4 +0 +4 +8 1 5 10 15 20 25 30 35 Be3 (-0.1) Missed f4 (-5.3) Blunder fxe5 (-5.6) Blunder Rf5 (-0.8) Missed Bxc6 (-4.2) Blunder Kg2 (-8.8) Blunder
Your moves Opponent moves

Found 6 crucial moments (4 blunders, 2 missed opportunitys).

Moment 1 — Missed Opportunity MINOR ↗

Missed Positional 
r . b q . r k .
. p . . . p p p
p . p p . n . .
n . b . p . . .
. . P . P . . .
. . N P . . P P
P P . . N P B .
R . B Q . R K .
FEN: r1bq1rk1/1p3ppp/p1pp1n2/n1b1p3/2P1P3/2NP2PP/PP2NPB1/R1BQ1RK1 w - - 0 10
You Played: Be3
You Could Have Played: a3
Eval Swing: -286 cp
Variation: a3 Ba7 b4 Nxc4
You could have played: a3 Ba7 b4 Nxc4

Coach Explanation

You had a chance to seize a positional advantage with a3. This move would have challenged Black's control of the queenside. The engine suggests the best line continues with a3, Ba7, followed by b4, creating pressure and forcing Nxc4. This sequence could have significantly improved your position.

Moment 2 — Blunder CRITICAL ↗

Hanging Piece 
r . b q . r k .
. . . . . p p p
p . p p . n . .
n p b . p . . .
. . P . P . . .
. . N P B . P P
P P . . N P B .
R . . Q . R K .
FEN: r1bq1rk1/5ppp/p1pp1n2/npb1p3/2P1P3/2NPB1PP/PP2NPB1/R2Q1RK1 w - - 0 11
You Played: f4
Engine Best: Bxc5
Eval Swing: -589 cp
Variation: Bxc5
CRITICAL: Your move allowed the opponent to immediately capture your White Bishop on e3.
Refutation: Bxe3+ Kh2 b4 Na4

Coach Explanation

BLUNDER: You hung your Bishop. The opponent can simply take it with Bxe3+. After Bxe3+, Kh2 is forced. Then b4 attacks the knight. After b4, the knight is further harassed by Na4.
Bxc5 is superior because it wins a piece.

Moment 3 — Blunder CRITICAL ↗

Hanging Piece 
r . b q . r k .
. . . . . p p p
p . p p . n . .
n . b . p . . .
. . p . P P . .
. . N P B . P P
P P . . N . B .
R . . Q . R K .
FEN: r1bq1rk1/5ppp/p1pp1n2/n1b1p3/2p1PP2/2NPB1PP/PP2N1B1/R2Q1RK1 w - - 0 12
You Played: fxe5
Engine Best: Bxc5
Eval Swing: -585 cp
Variation: Bxc5 dxc5 fxe5 Nd7
CRITICAL: Your move allowed the opponent to immediately capture your White Bishop on e3.
Refutation: Bxe3+ Kh2 dxe5 dxc4

Coach Explanation

BLUNDER: You hung your Bishop. The opponent can simply take it with Bxe3+. After Bxe3+ Kh2 dxe5 dxc4, you are in a worse position. Bxc5 is superior because after Bxc5 Bxc5 dxc5 fxe5 Nd7, you develop a piece and gain space.

Moment 4 — Missed Opportunity MAJOR ↗

Missed Positional 
r . b q . k . .
. . . . . p p p
p . p . . n . .
n . . . p . . .
. . . . P . . .
. . N p . . P P
P P . . N . B .
R . . Q . R K .
FEN: r1bq1k2/5ppp/p1p2n2/n3p3/4P3/2Np2PP/PP2N1B1/R2Q1RK1 w - - 0 15
You Played: Rf5
You Could Have Played: Nc1
Eval Swing: -486 cp
Variation: Nc1 d2 Nb3 Nc4
You could have played: Nc1 d2 Nb3 Nc4

Coach Explanation

You had a chance to improve your position significantly with Nc1. This move initiates a positional advantage. After Nc1, if Black responds with d2, then Nb3 forces the knight on a5 to retreat via Nc4, consolidating your control over the position.

Moment 5 — Blunder MAJOR ↗

Fork 
r . . q . k . .
. . . . . p p p
p . p . . n . .
. . . . p P . .
. . n . . . . .
. . N p . . P P
P P . . N . B .
R . . Q . . K .
FEN: r2q1k2/5ppp/p1p2n2/4pP2/2n5/2Np2PP/PP2N1B1/R2Q2K1 w - - 1 17
You Played: Bxc6
Engine Best: Nc1
Eval Swing: -372 cp
Variation: Nc1
Refutation: Qb6+ Kh2 dxe2 Qh1

Coach Explanation

Bxc6 loses to the tactic Qb6+, forking the king and knight. After Kh2 dxe2 Qh1, Black wins. Nc1 avoids this fork.

Moment 6 — Blunder MAJOR ↗

Fork 
. r . . . k . .
. . . . . p p p
p q B . . n . .
. . . . p P . .
. . n . . . . .
. . N p . . P P
P P . . . . . .
R . N Q . . K .
FEN: 1r3k2/5ppp/pqB2n2/4pP2/2n5/2Np2PP/PP6/R1NQ2K1 w - - 3 19
You Played: Kg2
Engine Best: Kh2
Eval Swing: -490 cp
Variation: Kh2 Qxb2+ N1e2 dxe2
Refutation: Ne3+ Kh2 Qxc6 Qd2

Coach Explanation

King Kg2 blunders into Ne3+, forking the king and queen. Kh2 avoids the immediate fork, and though Black can play Qxb2+ followed by N1e2, White is not immediately losing material.

Recurring Patterns


This game reinforces the persistent trend of "hanging_pawn" and "hanging_piece" blunders seen in previous analyses. Despite the overwhelming prevalence of hanging pawns across the entire game history, the immediate loss of material due to hanging pieces is notable in this and previous recent games. Additionally, while less frequent overall, the blunder involving a king and knight fork signifies the re-emergence of tactical oversights. Positional oversights, as categorized in the cross-game context, also appear.

Annotated PGN

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[Event "Live Chess"] [Site "Chess.com"] [Date "2026.03.06"] [White "erivera90"] [Black "Conchitilla"] [Result "0-1"] 1. c4 {+0.06} e5 {+0.09} 2. Nc3 {+0.05} Nf6 {+0.15} 3. g3 {+0.10} Nc6 {+0.29} 4. Bg2 {+0.28} Bc5 {+0.34} 5. h3 {+0.25} d6 {+0.17} 6. e4 {-0.05} O-O {+0.06} 7. Nge2 {-0.05} Na5 {+0.52} 8. d3 {+0.46} c6 {+2.07} 9. O-O {+0.84} a6 {+2.84} 10. Be3 $6 {-0.15 Missed Positional · best: a3} b5 {+0.51} 11. f4 $4 {-5.30 Hanging Piece · Bxe3+} bxc4 {+0.18} 12. fxe5 $4 {-5.61 Hanging Piece · Bxe3+} dxe5 {+4.14} 13. Bxc5 {+3.75} cxd3 {+3.84} 14. Bxf8 {+3.27} Kxf8 {+3.86} 15. Rf5 $6 {-0.85 Missed Positional · best: Nc1} Bxf5 {-0.46} 16. exf5 {-0.63} Nc4 {-0.57} 17. Bxc6 $4 {-4.16 Fork · Qb6+} Rb8 {-2.10} 18. Nc1 {-3.47} Qb6+ {-3.91} 19. Kg2 $4 {-8.75 Fork · Ne3+} Ne3+ {-10.57} 20. Kf2 {#-3} Nxd1+ {#-5} 21. Ke1 {#-3} Qxc6 {-9.07} 22. Nxd1 {#-7} Qh1+ {#-6} 23. Kd2 {#-6} Qh2+ {#-9} 24. Kc3 {#-1} Qxg3 {-10.04} 25. Nxd3 {#-7} Rc8+ {#-6} 26. Kd2 {#-4} Rd8 {#-9} 27. Rc1 {#-6} Qxd3+ {#-5} 28. Ke1 {#-5} Qxh3 {#-6} 29. Rc3 {#-4} Qxf5 {-11.21} 30. Ne3 {#-7} Qb1+ {-35.38} 31. Nd1 {#-3} Rxd1+ {#-6} 32. Ke2 {#-5} Rh1 {#-6} 33. Rc8+ {#-6} Ke7 {#-5} 34. Rc7+ {#-5} Ke6 {#-5} 35. b3 {#-2} Qxa2+ {#-3} 36. Kd3 {#-3} Qxb3+ {#-3} 37. Rc3 {#-3} Qb5+ {#-3} 38. Rc4 {#-3} Rh3+ {#-3} 0-1