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Your Report Card

See what 102K games of data reveal about your opening choices

We'll fetch your last 500 games and compare against our dataset

Analyzing your games...

Fetching game archives...

Opening Attribution

How much is your opening choice helping or hurting you vs the dataset average?

Your Openings vs 102K Games

Your win rate with each opening compared to the dataset average at your elo range.

Where You Win & Lose

Breaking down your results by game length — are you an opening player, a grinder, or a closer?

White vs Black

Your performance split by color.

Puzzles From Your Blunders

We analyze your recent games with Stockfish to find positions where you missed the best move — then turn them into puzzles you can solve.

Runs Stockfish in your browser — typically 15-30 seconds

Cassandra Chess Report Card
cassandrachess.vercel.app/report Powered by 102K game dataset