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Analysis: pereyrol vs erivera90

Date: 2026.02.10 | Event: Live Chess | Site: Chess.com

Found 2 crucial moments where evaluation dropped significantly.

Moment 1

r . b . k . . r
p p . . . p b p
. . n . . . p .
q . . n . . . .
. . B . . . . .
. . P . . N . .
P P . B . P P P
R . . Q K . . R
FEN: r1b1k2r/pp3pbp/2n3p1/q2n4/2B5/2P2N2/PP1B1PPP/R2QK2R b KQkq - 1 12
You Played: Nf4
Engine Best: O-O
Eval Swing: -501 cp
Variation: O-O O-O Nf6 h3
⚠️ CRITICAL: Your move allowed the opponent to immediately capture your Black Knight on f4.

Coach Explanation

BLUNDER: You hung your Knight. The opponent can simply take it with Bxf4. O-O develops your King to safety, preventing immediate attacks, and prepares to bring your rooks into the game; meanwhile, Nf4 hangs a piece for no compensation and worsens your position significantly.

Moment 2

r . b . . r k .
p p . . . p b p
. . n . . . p .
q . . . . . N .
. . B . . B . .
. . P . . . . .
P P . . . P P P
R . . Q K . . R
FEN: r1b2rk1/pp3pbp/2n3p1/q5N1/2B2B2/2P5/PP3PPP/R2QK2R b KQ - 2 14
You Played: Be6
Engine Best: Bxc3+
Eval Swing: -350 cp
Variation: Bxc3+ Kf1 Bxb2 Rb1
⚠️ CRITICAL: Your move allowed the opponent to immediately capture your Black Bishop on e6.

Coach Explanation

BLUNDER: You hung your Bishop. The opponent can simply take it with Bxe6. Bxc3+ forces the King to move, wins a pawn, and opens the b-file for an attack. You were objectively lost here, but this move might have set a practical trap.

3 Key Takeaways


The recurring theme in your mistakes is neglecting piece safety and overlooking simple captures. You're giving away material without sufficient compensation.

Here's what to focus on in your next game: