Merry Christmas 2021!

Fifteen years of Christmas blog posts with a chess theme...

...To see the original posts, start with Ghosts of Christmas Past (25 December 2020) and follow the links backward in time. Hey, wait a minute! If there are 15 years of Christmas, how come there are 16 photos? Because the year 2011 snuck in there twice; I don't remember why. And as always, please drive carefully!