I regularly use chesstempo.com, but for some reason my tactics have been really off for months. I've struggled to maintain a 1600 tactics rating. But all of a sudden, i log on today and do 60 puzzles and get 56 right!
What is that all about?
Do other people find that they get a day where they can just see the right move in just about any position, only for the very next day to be right back in patzer land? I just can't work it out. It's 4.30 am, my mind should be half asleep, normally if i played at this sort of time i'd be blundering all over the place..