Happy birthday Elizabeth Alexandra Mary Windsor - aka Queen Liz to her friends - 90 years old and going strong, much to the undoubted annoyance of Prince Charles, who really would like a go on the throne some time soon.
And what better way to celebrate than with a little puzzle? Well, cake would be better, but we can't give you that on a website.
So instead, here's an excellent 'find the Queen in the corgis' game created by the good people at Stylight. Based on the 'Find the Panda' puzzle that went all over the place last year, it's another devilishly tricky job to find the Monarch in amongst her trusty four-legged friends.
That picture really reminds us of something...