some interesting arbiter cases

    Hikaru Nakamura Castled By Both Hands Vs Ian Nepomniachtchi | Armageddon Blitz Chess 2015
    Magnus Carlsen Made Terrible Touch Move Blunder Against Boris Savchenko | Blitz Chess 2010
    Cheparinov refuses handshake (
    Wang Hao - Dreev
see also How to claim a threefold repetition the right way in FIDE Tournaments
or also Tromsř 2.1: World Cup Snapshots
    Cheating in chess
    Piece drop helps TruMasters to qualify!
    Partida polémica entre Ahmed Adly 1 vs 0 Diego Flores en Mundial Blitz 2016