Puzzle review should recover the missing idea and calculation, not train a sequence of squares remembered from the answer screen.

What to do

Reconstruct the position, identify the opponent’s resources and explain the tactical pattern. Wait before solving again, then calculate from the beginning without viewing the solution.

A mistake to avoid

Do not call a puzzle learned because you can repeat its first move immediately afterward. Test whether you can explain the defensive reply too.

A detail worth checking

Include the defensive move you initially missed in the explanation. The point of review is to expand what you consider before moving, not only attach a tactical label to the winning sequence.

Try this practical check

Keep three failed positions and revisit them later in a different order. Record whether you recognized the reason or only remembered a move.

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Reference and further practice

Lichess puzzle training