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Life & fun · May 20, 2026

Chess Lines

Chess openings with spaced repetition right in your browser

Chess Lines launched on May 20, 2026 with 1 votes.

What it does

Chess Lines is a Chrome extension that drills your opening repertoire using spaced repetition. Practice move-by-move, get quizzed at the right intervals, and actually retain the lines you study. Works 100% offline — no account, no sync required. Free plan includes 6 lines. Lifetime upgrade ($10) unlocks all 86 lines across 23 openings for both White and Black.

A Chrome extension that drills your opening lines with spaced repetition. No account, no internet required, no subscriptions. Free tier included — one-time $10 for all 86 lines.

Chess Lines is a popup extension that drills your opening repertoire with spaced repetition. 86 lines, 23 openings, zero internet required after install. Select an opening, make your moves when it's your turn, and the engine handles the opponent automatically. Get graded after each line and let spaced repetition resurface the ones you need most. Built for players who want focused repetition, not another chess platform to log into. 23 openings covering the Italian Game, Sicilian, French, Caro-Kann, Queen's Gambit, King's Indian, and more — for both White and Black. The SM-2 algorithm tracks your mastery and surfaces lines exactly when you're about to forget them. Grade each line — Again,…from chesslines.carrd.co

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