Here's a quick chess quiz, the 'challenger number 10' from the Corus Chess Tournament. Quite a nice one, took me a bit more than 6 (far too much!) minutes to solve: I am becoming rusty :-). If you solve it before Jan 25th at 16:00, you might want to email the key move and maybe win something. Plus of course it helps focusing a bit, in general :-)
I also hope the Norwegian chess wonderkid wins this year's Corus Chess Top Tournament (only a few more rounds to go and he's still co-leader) from Wijk aan Zee, although he made some very surprinsing blunders in the previous match he lost to Leko (see here the full report for Round 9). Otherwise, I'd bet on the current chess world champ.