Open 24 Calendar doors, where you simply have to answer the endgame riddle correctly. Some puzzles are very straightforward, and others require a bit more research.
If you guess correct, you can automatically take part in a Christmas surprise package raffle, with other many valuable prizes.
The full solution for door 21, and the newest riddle are in the video below:
And write the answer like this – e.g.: A, B, C or D
Please also add your own full name, e-mail, and in which country you currently live in.
Kindly understand, that you can only give an answer until the NEXT day 12:00 CET.
All winners will be informed on the 27th of December by email, and on the ChessBase news site.
The more Endgame Magic riddles you can solve correctly every day, the higher the chances are to win bigger prizes in the end.