Understanding Average Centipawn Loss In Chess
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Average centipawn loss
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ACPL measures how many centipawns (1/100th of a pawn) you lose, on average, per move due to inaccuracies, mistakes, or blunders — as evaluated by a chess engine.
This is how Lichess calculates the quality of moves. For every 0.01 points the advantage shifts after a move is played, that's 1 centipawn lost.
- The best move yields a centipawn loss of zero. A good move that's still not the best will get a small centipawn loss (<30, usually), and a critical mistake will result in a few hundred centipawns lost.
A "good" ACPL can depend on your skill rating, but the general consensus is as follows:
- 101 or greater: Horrific
- 76-100: Dreadful
- 61-75: Bad
- 51-60: OK
- 41-50: Good
- 31-40: Excellent
- 21-30: Outstanding (average for a GM)
- 11-20: Nearly perfect (average for a GM on a good day)
- 10 or less: Literally Stockfish
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What is a good average centipawn loss in a game. Can it be equated in any way to rating? I think game review used to have it but dropped it. If so why?