Spaced Repetition Science

How the FSRS-4.5 algorithm, memory psychology, and optimal review scheduling turn studied lines into permanent knowledge.

Spaced Repetition

The Science Behind Spaced Repetition for Chess Opening Memorization

Why most players forget openings after two days — and how the FSRS-4.5 algorithm fixes this permanently. Includes the neuroscience of memory and a comparison with Anki's SM-2 algorithm.

9 min read
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Spaced Repetition

Spaced Repetition vs. Cramming: The Data-Backed Study Method for Chess

Real retention curves showing why one method produces tournament-ready memory and the other doesn't.

8 min read
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Spaced Repetition

The FSRS-4.5 Algorithm Explained: Why ChessRecall is Different

A deep-dive into how FSRS-4.5 personalizes to your individual forgetting curve and why it outperforms older algorithms.

9 min read
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