Chess Cheater Detector

Chess Cheater Detector estimates the likelihood of cheating in exported chess games (PGN format). The tool calculates position complexity to assess how difficult each move decision is, recognizing that matching engine moves in complex positions is more suspicious than doing so in straightforward situations.

The detector combines three metrics—position complexity, engine agreement, and centipawn loss—to generate a cheating probability estimate. This weighted approach aims to differentiate between naturally strong play and potential engine assistance.