GameKnot: Comments - Chess Tactics #38847

CHESS TACTICS #38847

Problem's rating:	1264
Avg. time to solve:	00:52
Total attempts:	394
Solved percentage:	74.1%

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astrogalaxy 05-Jul-11, 06:56 » Report abuse	I don't get this rating system Any idea how the ratings are calculated? Is it from the problem itself or from the statystics of all attempts, or a combination of the two? Anyway 1322 for this problem seems rather low to me. I've seen problems with ratings in the 17**' 's that I thought were easier...
jumpingelephant 05-Jul-11, 09:28 » Report abuse	it's from the statistics gathered from all attempts, the same way a user's rating is calculated. for the first 5 attempts, the problem's rating is a 1200, and after that is gets a rating. from there, it gets more points the more it "beats" experienced players / tacticians (although I'm certain on some details, like if the rating for the problem takes into account your GK score or just your tactics rating).

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astrogalaxy
05-Jul-11, 06:56

» Report abuse

I don't get this rating system

Any idea how the ratings are calculated? Is it from the problem itself or from the statystics of all attempts, or a combination of the two? Anyway 1322 for this problem seems rather low to me. I've seen problems with ratings in the 17**' 's that I thought were easier...

jumpingelephant
05-Jul-11, 09:28

» Report abuse

it's from the statistics gathered from all attempts, the same way a user's rating is calculated. for the first 5 attempts, the problem's rating is a 1200, and after that is gets a rating. from there, it gets more points the more it "beats" experienced players / tacticians (although I'm certain on some details, like if the rating for the problem takes into account your GK score or just your tactics rating).

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CHESS TACTICS #38847