Hans Niemann claims 'lie-detector' test failed to prove over-the-board cheating: 'Polygraph finished, passed on all fronts'

In a new twist to the chess cheating scandal, Hans Niemann has claimed that he completed a ’lie-detector’ test and passed on all counts. However, he has not revealed when or where the test was conducted.

America’s controversial chess player, Hans Niemann, has announced that he has completed a polygraph test, which he had promised to take
after his defeat to Russian Grandmaster Daniil Dubov. The 21-year-old Niemann, who has been accused of cheating by world No.1 Magnus Carlsen, also shared that he refused to have cheated over the board during the lie-detector test and cleared it successfully.

Niemann faced Dubov in an 18-game Blitz showdown in March 2025 in Moscow. The face-off had one condition that the loser would have to answer one question with a polygraph test.

After a lot of dilly-dallying and
backing out of the polygraph test, Niemann claims that it was finally completed. However, he has not shared any details of when and where the lie-detector test was held, who organised it and if Dubov was present during the proceedings.

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