Recent Changes to Tactics Rating Formula?

I’ve been following the tactics rating discussion for a few months now, climbed up to 5000 and then all the way back down to 2000 without ever complaining! 🙂 There was definitely a period where farming high ratings was way too easy, so the adjustments by the Chess.com team were absolutely necessary! Thanks!

I’m just wondering whether there’s been another update in the past few weeks? It feels like incorrect puzzles aren’t being punished as hard anymore. Sometimes I gain around 12 points for a correct puzzle but only lose about 4 for a wrong one.

TL;DR: It currently feels closer to a normal ELO formula which might encourage players to solve puzzles faster?

There hasn’t been any changes in the rating formula but there’s some work around streaks, that some members may be seeing, that will give higher rated puzzles after longer streaks. I think it may only impact the Standard difficulty setting, but I’m not 100% certain.

You got more points because the puzzle was rated higher than your current puzzle rating. Under Standard difficulty, the average rating of puzzles is 200-300 lower than your current rating normally.

Speed is not a part of the rating algorithm.

Thanks for the super-fast reply.

Regarding Speed: I’m talking about earning ELO per hour. When a mistake is not “over penalized”, it may be helpful to follow your gut feeling instead of seeking for the perfect solution.

Yeah, I've also noticed that it has been annoying. There was one-point where you would gain two per puzzles correct and like -24 for one incorrect. They're definitely experimenting for the optimal range, which means it'll probably change again eventually.

The only change was in around streaks. The only way you're going to get -24 is if a puzzle’s rating is 400+ lower that your current puzzle rating and you miss. I haven't seen any that lower on member histories when I've looked

It was when our like 3000 puzzles ratings went down to like 1700. For some reason it took a very long time to get out of that.

That's a completely different thing. When the change was made to the new algorithm, the n October of last year, the actual rating changes were based on the updates, but the change listing was showing based on the old puzzle ratings, so it looked like there were massive changes. There weren't changes that large.

https://www.chess.com/news/view/announcing-new-puzzles-rating-system