ChessAnalysis
Free chess game review with Stockfish: accuracy, blunder explanations and a replay board.
Recommended for
- Solo / Indie
- Pre-Seed
SSIE
Stage Fit Recommendations
Following data shows why ChessAnalysis is recommended for listed teams. The Fit Score represents the percentage fit of ChessAnalysis to each company stages, as calculated by the SSIE.
Stage
Fit Score
Fit Reasons
Solo / Indie
$0–$2,000 MRR
96- Reviews Chess.com and Lichess games
- Analyzes positions with Stockfish 19
- Reviews unlimited games without signup
- Free plan covers a solo founder at no cost
Pre-Seed
$0–$10k MRR
84- Study games without account setup
- Users can email support about evaluation errors
- Free plan covers about 2 users at no cost
Description
ChessAnalysis reviews your chess games for free with no daily limit. Enter a Chess.com or Lichess username or paste a PGN and Stockfish analyzes every move in your browser: accuracy for both players using the open Lichess formula, an evaluation graph, every inaccuracy, mistake and blunder, and a short explanation of your three biggest mistakes with the move you should have played. You can retry each mistake on the board, share the review and download an annotated PGN. The site also has an analysis board with live engine lines, a next-move calculator for study, a board editor, an online chess clock with increment, a FIDE Elo calculator and a guide to how chess accuracy is calculated. Not affiliated with Chess.com or Lichess.
Pricing
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