maybe you are starting to recognise tge patterns?☺
tactics trainer skill.
Some times your mind just tends to put it all together in stages. So you may stagnate a while but eventually you'll progress if you keep working. I hit 1600 then have been between 1560-1585, but I know I'll start to see more. I do the tactics here each day and also at chesstempo.com, which I like a little better because the tags are a little more detailed and you don't get 5 points for an easy mate in 1, one point for a mate in 6, then penalized 9 because you saw the mate in 3 but not the mate in two. You get slightly harder problems, but only lose 2-5 points if you totally blow it.
If you do them while on the site (as opposed to the iPhone app -- i'm not sure about the Android app), you can see what each tactic's rating is.
I've noticed that when i seem to be really killing it some days, it's usually simply because more of the problems were rated lower that day.
I'm sure there's a pattern and logic to which problems are thrown your way, but it seems pretty random to me. I haven't bothered to research it.
@ Mick:
FYI: After hearing you mention chesstempo.com for the thousandth time the other day (and having never been witness to you spouting any nonsense around here), i decided to give it a go.
I only did a handful of tactics, but it might've gotten me interested enough to continue. It was difficult being in a different format all of a sudden.
i would tend to do tactics everyday i think but i was never really that good at it then suddenly today. BOOM! i got really good at it. my rating in the tactics trainer went from 1082 to 1211. why have i just suddenly gotten an increased skill in the tactics trainer or is it just a lucky day?