Search found 4594 matches

by Ferdy
Thu Apr 22, 2021 8:45 am
Forum: Computer Chess Club: General Topics
Topic: UCI_Elo 1500 engines and FIDE Elo
Replies: 26
Views: 854

Re: UCI_Elo 1500 engines and FIDE Elo

I have an off-topic question if you don't mind. How do you get Delfi 5.4 to play at 1500 ELO? Do you have a version different from the free version? Thank you. Delfi supports UCI_Elo and UCI_LimitStrength ; Delfi 5.4 - Winboard/UCI chess engine [MMX version] uci id name Delfi 5.4 id author Fabio Ca...
by Ferdy
Wed Apr 21, 2021 5:47 pm
Forum: Computer Chess Club: General Topics
Topic: UCI_Elo 1500 engines and FIDE Elo
Replies: 26
Views: 854

Re: UCI_Elo 1500 engines and FIDE Elo

I have an off-topic question if you don't mind. How do you get Delfi 5.4 to play at 1500 ELO? Do you have a version different from the free version? Thank you. Delfi supports UCI_Elo and UCI_LimitStrength ; Delfi 5.4 - Winboard/UCI chess engine [MMX version] uci id name Delfi 5.4 id author Fabio Ca...
by Ferdy
Wed Apr 21, 2021 2:12 pm
Forum: Computer Chess Club: General Topics
Topic: UCI_Elo 1500 engines and FIDE Elo
Replies: 26
Views: 854

Re: UCI_Elo 1500 engines and FIDE Elo

Maia Lichess 1546 has a blitz Lichess rating of around 1546 . This engine is run with maia-1100.pb.gz net at node 1 on a gauntlet test below. The Maia Lichess 1546 blitz rating has now changed. It is not 1546 anymore so the rating diff of 1500-Elo may now change. Blitz Rating history: https://i.img...
by Ferdy
Wed Apr 21, 2021 1:53 pm
Forum: Computer Chess Club: General Topics
Topic: UCI_Elo 1500 engines and FIDE Elo
Replies: 26
Views: 854

Re: UCI_Elo 1500 engines and FIDE Elo

Maia gauntlet bullet at TC 60s+100ms and is set at FIDE Elo 1410. # Player : FIDE Elo Points Played Points(%) 1 Rybka v2.3.2a UCI_Elo 1500 : 2217 99.0 100 99.0 2 Minic 2.51 UCI_Elo 1500 : 2145 98.5 100 98.5 3 Cheese 2.1 UCI_Elo 1500 : 2094 98.0 100 98.0 4 Honey X5i UCI_Elo 1500 : 2054 97.5 100 97.5...
by Ferdy
Tue Apr 20, 2021 6:04 pm
Forum: Computer Chess Club: General Topics
Topic: UCI_Elo 1500 engines and FIDE Elo
Replies: 26
Views: 854

Re: UCI_Elo 1500 engines and FIDE Elo

Uri Blass wrote:
Tue Apr 20, 2021 5:18 pm
I am not sure if regression from 2019 is reliable.

I am not sure if lichess rating X of 2019 is the same as lichess rating X of 2021.
What is your proposal to make the estimates more closer to the truth?
by Ferdy
Tue Apr 20, 2021 6:01 pm
Forum: Computer Chess Club: General Topics
Topic: UCI_Elo 1500 engines and FIDE Elo
Replies: 26
Views: 854

Re: UCI_Elo 1500 engines and FIDE Elo

You should try Cheese 2.2, I changed UCI_Elo calculation, based on a formula from one of your previous post. It's difficult to find a formula that works with all possible ELO values. In Cheese 2.2 there are 2 modes for UCI_Elo, in cheese.ini, UCILimitMode=0 to reduce the speed, or UCILimitMode=1 to...
by Ferdy
Tue Apr 20, 2021 5:58 pm
Forum: Computer Chess Club: General Topics
Topic: UCI_Elo 1500 engines and FIDE Elo
Replies: 26
Views: 854

Re: UCI_Elo 1500 engines and FIDE Elo

Some engines are added. The top 3 are now CT800, Delfi and Stockfish. num engine games fide_elo diff 1 CT800 V1.42 UCI_Elo 1500 100 1515 15 2 Delfi 5.4 UCI_Elo 1500 100 1463 37 3 Stockfish 13 UCI_Elo 1500 100 1539 39 4 Hiarcs 14 UCI_Elo 1500 100 1449 51 5 Maia Lichess 1546 2500 1410 90 6 Danasah 7.9...
by Ferdy
Tue Apr 20, 2021 11:40 am
Forum: Computer Chess Club: General Topics
Topic: UCI_Elo 1500 engines and FIDE Elo
Replies: 26
Views: 854

Re: UCI_Elo 1500 engines and FIDE Elo

Added Cheng 4.40, much better than the previous version. # Player : FIDE Elo Points Played Points(%) 1 Rybka v2.3.2a UCI_Elo 1500 : 2217 99.0 100 99.0 2 Minic 2.51 UCI_Elo 1500 : 2145 98.5 100 98.5 3 Cheese 2.1 UCI_Elo 1500 : 2094 98.0 100 98.0 4 Cheng 4.39 UCI_Elo 1500 : 2054 97.5 100 97.5 5 Honey ...
by Ferdy
Tue Apr 20, 2021 10:02 am
Forum: Computer Chess Club: General Topics
Topic: UCI_Elo 1500 engines and FIDE Elo
Replies: 26
Views: 854

UCI_Elo 1500 engines and FIDE Elo

Maia Lichess 1546 has a blitz Lichess rating of around 1546 . This engine is run with maia-1100.pb.gz net at node 1 on a gauntlet test below. The formula to get FIDE Elo from Lichess Blitz Elo is, FIDE rating = 65 + [0.87 x Lichess Blitz Rating] based from the regression in 2019 . Maia FIDE Elo = 65...
by Ferdy
Mon Apr 19, 2021 5:40 pm
Forum: Computer Chess Club: General Topics
Topic: Algorithm to determine the difficulty of a chess problem
Replies: 6
Views: 560

Re: Algorithm to determine the difficulty of a chess problem

Hello, I am trying to implement a simple algorithm to generate chess problems. It's pretty simple, I analyze lichess game with an engine and when there is a dramatic change in the evaluation, it means something is happening. However, I can't figure out a reliable way to determine the difficulty of ...