I just called him and he answered that he is using Arena 3.5.1 and set up the Skill to 22, that is all that he did.lkaufman wrote: ↑Mon Aug 09, 2021 7:39 pmCan you ask him to look at what that default setting for Threads is? It depends on the GUI. Could be 12, could be just 1, or some other number; it makes a significant difference. Do you know what GUI he uses?Chessqueen wrote: ↑Mon Aug 09, 2021 6:24 pmHe played three games yesterday at TC 15'+10" with Skill Level 22; Won 1, and Lost 2 games. He did not changed the default thread and was happy to find a skill level in Komodo that can challenge him.lkaufman wrote: ↑Mon Aug 09, 2021 4:59 pmThe default setting of threads depends on the GUI used. It was probably 12, but perhaps Jorge can confirm this. If so, he did very well, as Skill 21 with 12 threads is at least Skill 22 on one thread, probably more. So he can bump either to Skill 22 with his current thread setting or go to Skill 23 with Threads set to 1 (the normal value for the Skill settings). Perhaps I have overrated the Skill levels for humans at 15' + 10", maybe 110 x Skill rather than 115 would be more accurate for estimated FIDE rating. We need more human data. If Jorge can give us enough results to determine what Skill level (with Threads at 1 or at some known value) is a fair match for him at 15' + 10", we'll be glad to give him the next upgrade (which might be a nice one!) free on request.Chessqueen wrote: ↑Mon Aug 09, 2021 3:18 pm He did NOT changed any settings with the threads, he left it with original settings, according to him.![]()
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With Arena 3.5.1, if you just download it and install Dragon 2 with no changes (other than skill level setting), it will just use one thread. To confirm this, click on "engines", then "manage", and note the box "common max cpus" which should be checked and set to 1 if it hasn't been modified. This is fine for the Skill level options (this is how they were calibrated), but for knight odds games he might want to use all 12 threads rather than just 1, in which case set that value to 12. So far you report that Jorge, who is 2458 FIDE, has an even score against levels 21 and 22 combined. My formula of 115 x level gives 2415 for Skill 21 and 2530 for Skill 22, so it appears to be pretty accurate based on these five games, maybe 114 x level would fit the data almost perfectly. For reference, Skill 22 generally loses to full strength Dragon with knight odds, while 23 tends to come out ahead.
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He just checked and the common max cpus was set to 1 using skill Level 22; so he asked me what elo different would it be if he set it to 12 at skill level 21 instead ?