Niemann accuses Carlsen of paying fellow chess player €300 to shout abuse

• Niemann claims grandmaster was paid to shout Cheater Hans'
• Allegations contained in latest legal submission from Niemann

Chess's cheating scandal took another bizarre twist on Wednesday after the US teenager Hans Niemann accused world champion Magnus Carlsen of paying a fellow grandmaster 300 to scream Cheater Hans" from a public balcony during a tournament.

The allegation is contained in an amended legal submission from Niemann, who is seeking $100m in damages from Carlsen, Chess.com and others for defamation, slander and unlawfully colluding to blacklist him from the profession to which he has dedicated his life".