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Analysis: erivera90 vs SeargantMozzie

Date: 2026.02.25 | Event: Live Chess | Site: Chess.com

Evaluation

-8 -4 +0 +4 +8 1 5 10 f4 (-2.3) Blunder

Found 1 crucial moment.

Moment 1 — Blunder MAJOR

Pin
r n b . . r k .
p . . p . p p p
. q p . . n . .
. . . . p . . .
. b P . P . . .
. . N . . . P .
P P . . N P B P
R . B Q K . . R
FEN: rnb2rk1/p2p1ppp/1qp2n2/4p3/1bP1P3/2N3P1/PP2NPBP/R1BQK2R w KQ - 5 9
You Played: f4
Engine Best: h3
Eval Swing: -301 cp
Variation: h3 Qc7 O-O d6
Refutation: Ng4 Rf1 Nxh2 Rh1

Coach Explanation

f4 weakens the kingside. Black can then play Ng4, followed by Rf1 Nxh2 Rh1. h3 is better to prepare kingside castling.

3 Key Takeaways


The recurring theme in your error appears to be weakening your King's position with pawn moves too early in the game.

Here's some actionable advice for your next game:

Develop Pieces First: Focus on developing your knights and bishops to good squares before* making pawn moves. A well-developed army can better defend against attacks on the kingside.

Annotated PGN

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[Event "Live Chess"] [Site "Chess.com"] [Date "2026.02.25"] [White "erivera90"] [Black "SeargantMozzie"] [Result "1-0"] 1. c4 {+0.06} e5 {+0.03} 2. g3 {+0.14} Nf6 {+0.23} 3. Bg2 {+0.21} c6 {+0.21} 4. e4 {-0.01} b5 {+0.87} 5. d3 {-0.07} bxc4 {-0.21} 6. dxc4 {-0.16} Bb4+ {-0.13} 7. Nc3 {-0.07} Qb6 {+0.77} 8. Ne2 {+0.79} O-O {+0.75} 9. f4 $4 {-2.28 Pin · Ng4} exf4 {-1.04} 10. Nxf4 {-2.00} Ba6 {-1.55} 11. e5 {-3.31} Ne8 {-0.01} 12. Qh5 {-2.18} Bxc4 {-2.18} 13. Be4 {-2.54} Bc5 {#1} 14. Qxh7# {#-0} 1-0