The 1972 World Championship match between Bobby Fischer and Boris Spasski is regarded as one of the most critical moments in the history of chess, occurring 50 years ago. To present you with this year’s Christmas calendar in the proper setting, Arne swiftly constructed a time machine, and went back 50 years. Of course, the 1972 World Cup is the main calendar focus this time! You have the opportunity to guess, count, and conduct research every day for a chance to win one of 90 ChessBase prizes. Your chances of winning one of the major prizes increases, the more questions you can correctly guess.

