Up until the early 20th century, it was mandatory to announce a check. Up until the late 19th century, it was mandatory to say 'check to the queen' or 'gardez' when she was attacked. At one time, if the King and other piece were simultaneously attacked by a piece, it was customary to announce the fact by saying check to both pieces. Up until the early 19th century, an unannounced check could be ignored. In 1991, the game Wegner-Johnsen in Gausdal had 100 checks for White and 41 checks for Black, for a total of 141 checks in the game. In 1995, the game Rebickova-Voracova in the Czech Republic, ended with 74 checks by the black Queen.