Website or program that creates puzzles from blunders in your past games I'm looking for a website or program that would look at your past games on Lichess or chess.com and find moves that you played that were blunders and create puzzles around those
I don't know of a single program that does all that. I do it myself with following steps. I save most of my games in a pgn file. The interesting ones, esp. my losses, are analyzed by Stockfish. The &quot;blunder threshold&quot; is your choice, typically 3 - 5 pawns or more. With Notepad++ text editor I enter the FEN of the position in a pgn file, of course preceded by the tag line [SetUp &quot;1&quot;]. Answer is best line of Stockfish. I skip positions that are cooked by good alternative choices.
When 50 - 100 puzzle positions are accumulated I transfer the pgn file to my Android phone &amp; tablet. I display them with iChess but many other apps handle pgn files.