2022-06-18
Puzzle Leaderboard - Chess Rankings - Chess.com
https://www.chess.com/leaderboard/tactics?page=171
I'm #8540 on the chess.com puzzle ratings. I was expecting that the top ratings would not go too high, but I was wrong. The top three ratings are all 65540, which for the reasons I give below, I suspect is the highest possible rating.
I find this 65540 number suspicious because the top three ratings are this number. The maximum value that can be stored by a 16-bit number is 65536. If you want to save storage space, why use a 32-bit or a 64-bit number to store ratings when a 16-bit number would do? The 65540 number almost fits. You can make it fit by making the lowest possible rating the number 5. Why would you set a lower limit on the rating? To not accidentally run into a divide by zero problem, which can crash computer code, or other mathematical oddities from having a low or negative number in your equation.
Chess Puzzle Rating
Nevertheless, reaching 3000 took a great deal of effort.
The site presents chess problems that have difficulty proportional to your current puzzle rating. I have reached a point where I am almost as likely to fail as I am to succeed. I find that I am not analyzing as well as I should so I am trying to make myself focus deeper. The casual puzzle solver will look for what the "trick" is in the position and make a move without thinking about it too hard. However, I can no longer just make cursory judgments.
A chess master in Salt Lake City that I know has been in the 3070 to 3100 range. I would like to catch up with him.
2022-06-06
Stockfish 15 vs. Stockfish 14.1
Overnight I did an engine versus engine match of 100 speed-chess (4+2) games.
There were 94 draws.
Stockfish 14.1 won 1.
Stockfish 15 won 5 with a score of 52%. Its performance rating was 16 points better than Stockfish 14.1. This website is claiming a 36 point improvement: https://stockfishchess.org/blog/2022/stockfish-15/
Either way, the improvement is not very significant.
My computer seemed to hang while doing deep analysis with Stockfish 15. I'm going to try again. For the moment I am still using Stockfish 14.1.
2022-06-03
Levy Gets EXPOSED
I think that this is deeply fascinating.
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