https://lichess.org/@/ChessAtlasApp/blogChessAtlasApp's Blog2026-04-30T14:38:33.667Zhttps://lichess.org/@/ChessAtlasApp/blog/i-built-a-free-tool-to-analyze-your-chess-openings-repertoire-weaknesses/UoOVBu2X2026-04-30T14:38:33.667Z2026-04-30T14:38:33.667ZI built a free tool to analyze your chess openings repertoire weaknesses<img class="ublog-post-image" width="880" height="550" alt="openingscanner" src="https://image.lichess1.org/display?fmt=webp&h=550&op=thumbnail&path=Etx5xqEeSAqv.webp&w=880&sig=798cca04c2aa79d187540fbee4c8c460982391de" /><br />You think you know your repertoire. You probably don't. A free, open source tool that scans your Lichess or Chess.com games and shows you what you actually play, how it scores, and where the gaps are.ChessAtlasApphttps://lichess.org/@/ChessAtlasApp/blog/i-built-a-free-tool-to-learn-blindfold-chess-and-improve-visualization/45HZHUfc2026-04-24T12:25:25.66Z2026-04-24T12:25:25.66ZI built a free tool to learn Blindfold Chess and improve visualization<img class="ublog-post-image" width="880" height="550" alt="DarkSquares" src="https://image.lichess1.org/display?fmt=webp&h=550&op=thumbnail&path=ypZhdqEZcl5j.webp&w=880&sig=fc357e97f94f4613b59cbf3268228a68d188c5bc" /><br />I spent years assuming blindfold chess was a talent you either had or didn't. Turns out it's a stack of sub-skills nobody drills. Here's the tool I built.ChessAtlasApphttps://lichess.org/@/ChessAtlasApp/blog/i-built-a-tool-to-stop-forgetting-my-openings/slsMF6za2026-04-23T14:11:38.289Z2026-04-23T14:11:38.289ZI Built a Tool to Stop Forgetting My Openings<img class="ublog-post-image" width="880" height="550" alt="ChessAtlas" src="https://image.lichess1.org/display?fmt=webp&h=550&op=thumbnail&path=r2uEg__0Xhc4.webp&w=880&sig=2d9e379d8ef4c23c612f2aafe07dcecfa8968b98" /><br />I kept studying openings and forgetting them in games. So I built ChessAtlas, a repertoire trainer that imports your Lichess games and shows you exactly which moves you keep missing.ChessAtlasApp