Player Prep

Explore your opponent's Chess.com opening repertoire and results.

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Opening DNA · Repertoire Explorer

Choose a player to load their games.

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🟩 Win⬜ Draw🟥 LossResults from opponent's perspective

Weakness Finder

Load an opponent to see their weakest opening responses.

Prep Recommendations

Candidate lines are ranked by observed opponent losses. Small samples are not conclusive.

Load an opponent to see candidate lines.

Head-to-Head Prep

Enter your own username to compare your usual moves with your opponent's repertoire.