Advent calendar: December 21

12/21/2016 – From December 1 to December 24 we invite our readers every day to open a door in our advent calendar. Click and enjoy a little chess treat. Behind door 21 waits a tricky endgame. Advent calendar, door 21.

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The less pieces on the board, the more difficult it gets. Have a look at the pawn endgame below. White is a pawn up and on first sight seems to be winning. But is that true?


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