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The personal mistakes notebook

Level: Class A (1800–2000)Topic: Game analysis30 minutes

In short

Collect every serious mistake from your tournament games into one notebook (or the app’s mistake deck). Classify each: calculation, evaluation, opening knowledge, technique, time, psychology.

By the end you can

The lesson

Collect every serious mistake from your tournament games into one notebook (or the app’s mistake deck). Classify each: calculation, evaluation, opening knowledge, technique, time, psychology.

Every few months, review the counts. The largest category becomes the main training focus for the next period. This turns random improvement into targeted improvement.

Key points to remember

Examples

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Example 1 (Black to move). A typical evaluation mistake: which move keeps the edge? (Lichess puzzle 0HXFS, rated 1900)
Show the solution

21... Qh6+ 22. Nh3 Bxh3 23. Qc1 Be3

Homework

Classify the mistakes from your last ten tournament games.

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