Stockfish classifies inaccuracies, mistakes and blunders, then keeps analysis state so games are not wasted twice.
Engine analysis - opening repertoire - personal puzzles
Train from your actual chess games.
Import games from Chess.com or Lichess. ChessForgePro analyzes your performance to create a custom study plan with puzzles and opening drills based on your real mistakes.
Stockfish 18
Training platform
Everything organized around improvement.
Your own missed tactics become exercises with PGN copy, attempt tracking and solved status for effective recall.
Named ECO lines, transpositions, Lichess comparison and spaced repetition style training to master your repertoire.
See weak phases, opening performance by color, course links and practical recommendations based on your actual data.
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