The free ChessTempo alternative for opening training

ChessTempo is known for its excellent puzzle training with rating system. ChessAtlas focuses specifically on opening repertoire training with modern spaced repetition, automatic game import from Lichess/Chess.com, and deviation analysis. ChessAtlas has a more modern interface designed specifically for repertoire work.

ChessTempo does offer opening training features, but its main strength is puzzle solving. ChessAtlas is purpose-built for opening repertoire training with features like automatic game import, deviation detection, and FSRS-based spaced repetition scheduling.

Both platforms use spaced repetition, but ChessAtlas implements the modern FSRS algorithm with optimized intervals for chess openings. ChessAtlas also tracks your actual games to identify which lines you struggle with most, making your review schedule more targeted.

Yes, ChessAtlas connects to both Lichess and Chess.com. Your games are imported automatically and ChessAtlas shows where you left your repertoire. ChessTempo gives similar feedback, but on the games you play on ChessTempo itself.

Use ChessTempo for puzzle training with its excellent rating system and vast puzzle database. Use ChessAtlas for dedicated opening repertoire training with modern tools, game import, and deviation tracking. Many players use both for comprehensive chess improvement.

ChessTempo has a free tier plus paid memberships that raise its daily limits and add more advanced features. ChessAtlas is free to start as well: build your own repertoire up to 200 variations, link 2 Lichess or Chess.com accounts, get automatic deviation detection, and review all of it with FSRS spaced repetition, with no credit card.