Chess324 Top 15 Round-Robin - RubiChess 20240817

[Modern Times]

This is my ongoing Top15 round-robin tournament of free engines only, using Stefah Pohl's unbalanced 3-move book Chess324_xxl_big_+090_+119.pgn played reversed sides per pairing. New versions replace previous versions, and new entrants cause the bottom engine to drop out. It is a revolving tournament rather than a ratings list, however I am showing Ordo Elo as well as the tournament scores.

RubiChess 20240817 has replaced version 20240112 and has jumped from 9th place to 8th place with an approx. +25 Elo gain

Clarity 7.2.0 at 16th place is pretty much within the error margins of 15th placed Stormphrax 5.0.0, so it stays in the tournament for now.

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Tournament scores:

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  # PLAYER                :  RATING  ERROR  POINTS  PLAYED   (%)     W     D     L  D(%)  OppAvg  CFS(%)
   1 Stockfish 16.1        :    3833      8  2191.0    3000  73.0  1411  1560    29  52.0    3654     100
   2 Berserk 13            :    3768      8  1943.5    3000  64.8  1137  1613   250  53.8    3659     100
   3 Obsidian 13           :    3724      8  1756.5    3000  58.5   902  1709   389  57.0    3662      54
   4 Caissa 1.20           :    3723      8  1754.0    3000  58.5   873  1762   365  58.7    3662     100
   5 Clover 7.1            :    3707      7  1687.0    3000  56.2   807  1760   433  58.7    3663      98
   6 PlentyChess 2.1.0     :    3696      8  1637.0    3000  54.6   757  1760   483  58.7    3663     100
   7 Alexandria 7.0.0      :    3668      8  1513.0    3000  50.4   637  1752   611  58.4    3665      58
   8 RubiChess 20240817    :    3667      7  1508.0    3000  50.3   621  1774   605  59.1    3665      90
   9 Viridithas 14.0.1     :    3659      7  1477.0    3000  49.2   620  1714   666  57.1    3666     100
  10 Lizard 10.5           :    3623      8  1316.5    3000  43.9   452  1729   819  57.6    3668     100
  11 Motor 0.7.0           :    3606      8  1246.0    3000  41.5   353  1786   861  59.5    3669      67
  12 Uralochka 3.41        :    3604      8  1235.0    3000  41.2   402  1666   932  55.5    3669      87
  13 Titan 1.1             :    3598      7  1210.0    3000  40.3   333  1754   913  58.5    3670      68
  14 Seer 2.8.0            :    3596      8  1199.5    3000  40.0   367  1665   968  55.5    3670      86
  15 Stormphrax 5.0.0      :    3589      8  1172.5    3000  39.1   402  1541  1057  51.4    3670      78
  16 Clarity 7.2.0         :    3585      8  1153.5    3000  38.5   325  1657  1018  55.2    3671     ---

Stats
White wins: 9'678 (40.3%)
Black wins: 721 (3.0%)
Draws: 13'601 (56.7%)
White score: 68.7%


Tournament Conditions:
Format: Round-robin using Stefah Pohl's unbalanced 3-move book Chess324_xxl_big_+090_+119.pgn played reversed sides per pairing.
Time Control: game in 2 minutes plus 1 second increment, 2'+1"
CuteChess GUI, Concurrency 8
Hardware: Intel i7-12700 @ 85w (runs at approx. 4.3Ghz at concurrency 8)
Adjudication: Syzygy 5-men only, there is no eval based adjudication.
Endgame tablebases: Syzygy 5-men.
Each engine 512MB hash, 1 thread, ponder off

Pgn available on request.

[Graham Banks]

I think that you should consider testing Velvet 8.0.0.

[Modern Times]

I think that you should consider testing Velvet 8.0.0.

I'll check it out, I must have missed it. I normally keep an eye on the various ratings lists to identify engines that were previously below the Top 15 but release a new version and potentially qualify to enter.

[Modern Times]

I think that you should consider testing Velvet 8.0.0.

Ran a quick test, it is not strong enough at Chess324 to enter this Top 15 tournament. Standard chess could be different.