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Analysis: erivera90 vs thegrenth

Date: 2026.03.29 | Event: Live Chess | Site: Chess.com
Analyze on Lichess

Evaluation

-8 -4 +0 +4 +8 1 5 10 15 20 25 30 35 Bxd8 (-4.0) Blunder
Your moves Opponent moves

Found 1 crucial moment.

Moment 1 — Blunder MAJOR ↗

Losing Exchange 
. . k r . b . r
p p . . . . p p
. . . . . . . .
. . p . P . B .
. . . . . . . .
. . . n . . P P
P P . . N . b .
R . . . . R K .
FEN: 2kr1b1r/pp4pp/8/2p1P1B1/8/3n2PP/PP2N1b1/R4RK1 w - - 0 21
You Played: Bxd8
Engine Best: Kxg2
Eval Swing: -345 cp
Variation: Kxg2 Re8
CRITICAL: Your move allowed the opponent to immediately capture your White Rook on f1.
Refutation: Bxf1 Rxf1 Kxd8 Rf7

Coach Explanation

BLUNDER: You hung your Rook. The opponent can simply take it with Bxf1. Bxd8 loses material and makes the position worse, resulting in a -397 centipawn evaluation. Kxg2 is better because after Kxg2 Re8, the evaluation is not as bad.

Recurring Patterns


The most prominent mistake pattern across erivera90's analyzed games continues to be positional oversights, followed by errors related to pins. The frequency of these positional and pin-related blunders far exceeds other tactical oversights. Hanging pieces, often undefended or poorly defended, have also been a recurring issue. This latest blunder, losing a Rook to a direct capture and categorized as a Hanging Piece, sadly reinforces the pattern.

Annotated PGN

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

[Event "Live Chess"] [Site "Chess.com"] [Date "2026.03.29"] [White "erivera90"] [Black "thegrenth"] [Result "0-1"] 1. c4 {+0.00} e5 {+0.23} 2. Nc3 {+0.05} d6 {+0.40} 3. g3 {+0.38} f5 {+0.36} 4. Bg2 {+0.21} e4 {+1.88} 5. e3 {+1.00} Nf6 {+0.80} 6. h3 {+0.25} d5 {+0.11} 7. cxd5 {+0.00} Nxd5 {+0.30} 8. Nge2 {+0.19} c5 {+0.71} 9. d3 {+0.37} Nf6 {+1.49} 10. dxe4 {+1.97} Qxd1+ {+1.84} 11. Nxd1 {+1.25} fxe4 {+1.80} 12. O-O {+0.67} Be6 {+1.52} 13. Ndc3 {+1.59} Nc6 {+1.78} 14. f4 {-0.52} exf3 {-0.39} 15. Rxf3 {-0.37} O-O-O {-0.31} 16. e4 {-0.60} Ne5 {-0.13} 17. Rf1 {-0.11} Nd3 {+0.87} 18. e5 {-0.51} Nd5 {+0.20} 19. Nxd5 {+0.00} Bxd5 {-0.03} 20. Bg5 {-0.69} Bxg2 {-0.57} 21. Bxd8 $4 {-3.97 Losing Exchange · Bxf1} Bxf1 {-4.00} 22. Rxf1 {-4.27} Kxd8 {-4.38} 23. e6 {-4.76} Nxb2 {-3.52} 24. Nf4 {-4.88} Bd6 {-5.04} 25. Nd5 {-5.06} Nd3 {-4.21} 26. e7+ {-5.16} Bxe7 {-5.03} 27. Nxe7 {-5.71} Kxe7 {-5.71} 28. Rd1 {-5.78} c4 {-5.79} 29. g4 {-6.15} Rd8 {-6.07} 30. Rd2 {-5.94} c3 {-6.35} 31. Rc2 {-6.47} Rc8 {-6.38} 32. Re2+ {-7.21} Kd6 {-8.66} 33. Rc2 {-9.16} Nb4 {-9.52} 34. Rc1 {-10.11} c2 {-10.84} 35. a3 {-11.38} Nd3 {-39.17} 36. g5 {#-7} Nxc1 {#-5} 37. a4 {#-5} Nd3 {#-4} 0-1