Since you’re here...

... we have a small favour to ask. More people, like you, are reading and supporting our blog: "Chess Engines Diary". And unlike many other sites and blogs, we made the choice to keep our articles open for all, regardless of where they live or what they can afford to pay.

We hope you will consider supporting us today. We need your support to continue to exist, because good entries are more and more work time. Every reader contribution, however big or small, is so valuable. Support "Chess Engines Diary" even a small amount– and it only takes a minute. Thank you.

============================== My email: jotes@go2.pl



Chess engine: Peacekeeper 1.30



Peacekeeper - UCI engine
Author: Kyle Zhang  Rating CEDR=2750

v.1.30:
This release adds some missed features and improves on some existing features. Features added and improved on include:
Improved TT replacement scheme
Killers
Relative History Heuristic
LMR (Fixed for hopefully the last time)
King relative PST's
This release is 82.7 elo stronger in selfplay, and 71 elo stronger in a gauntlet against other opponents of similar strength.

 # PLAYER              : RATING  ERROR   POINTS  PLAYED    (%)
   1 peacekeeper-more    :   82.7   20.1    369.5     600   61.6%
   2 peacekeeper-less    :    0.0   ----    230.5     600   38.4%

Based on the strength gains, I predict a blitz elo of about 2640, and LTC elo at 2530.
Last but not least, Peacekeeper v1.30 seems to be significantly more aggressive in its gauntlet games, with more sacrifices and short games, possibly due to the King Relative Piece Square Tables.

Individual statistics: Peacekeeper 1.1 - 98 games (+ 18,= 14,- 66), 25.5 %
Critter 1.6a                  :   4 (+  0,=  0,-  4),  0.0 %
Fritz 17                      :   2 (+  0,=  0,-  2),  0.0 %
Admete 1.5.0                  :   1 (+  0,=  0,-  1),  0.0 %
OliThink 5.10.1               :   1 (+  0,=  0,-  1),  0.0 %
Novice 3.1                    :   1 (+  0,=  1,-  0), 50.0 %
Colossus 2022a                :   1 (+  0,=  0,-  1),  0.0 %
Vafra 12.2 Cfish              :   2 (+  0,=  0,-  2),  0.0 %
Caissa 1.4                    :   2 (+  0,=  0,-  2),  0.0 %
Knightx 3.6a                  :   2 (+  0,=  1,-  1), 25.0 %
Little Goliath 3.16           :   2 (+  0,=  0,-  2),  0.0 %
Lc0 0.29.0                    :   2 (+  0,=  0,-  2),  0.0 %
Charisma Diamond              :   2 (+  0,=  0,-  2),  0.0 %
Mittens 0.9                   :   2 (+  0,=  1,-  1), 25.0 %
Uralochka 3.39d               :   2 (+  0,=  0,-  2),  0.0 %
RukChess 3.0.13 NNUE2         :   2 (+  0,=  0,-  2),  0.0 %
Seawall 20230105              :   2 (+  0,=  1,-  1), 25.0 %
Rebel 16.1                    :   2 (+  0,=  0,-  2),  0.0 %
Captain 3.1                   :   2 (+  2,=  0,-  0), 100.0 %
Sting Black Hole 3            :   4 (+  0,=  0,-  4),  0.0 %
Blue Marlin 15.6              :   4 (+  0,=  0,-  4),  0.0 %
BrainLearn 21.1               :   4 (+  0,=  0,-  4),  0.0 %
Carp 1.1.0                    :   4 (+  3,=  1,-  0), 87.5 %
Zagreus 1.1.0                 :   4 (+  4,=  0,-  0), 100.0 %
Clovis I                      :   6 (+  1,=  2,-  3), 33.3 %
Raven 1.30                    :   4 (+  0,=  3,-  1), 37.5 %
Koivisto 8.17                 :   4 (+  0,=  0,-  4),  0.0 %
Akimbo 0.1.1                  :   6 (+  0,=  3,-  3), 25.0 %
BlackCore 5.0                 :   4 (+  0,=  0,-  4),  0.0 %
Stockfish 20230114            :   2 (+  0,=  0,-  2),  0.0 %
4ku 1.1                       :   2 (+  0,=  1,-  1), 25.0 %
Polyfish 230115               :   2 (+  0,=  0,-  2),  0.0 %
Charisma Saphir               :   2 (+  0,=  0,-  2),  0.0 %
ShashChess 27.2               :   2 (+  0,=  0,-  2),  0.0 %
Frozenight 6.0.0              :   2 (+  0,=  0,-  2),  0.0 %
Jangine 2023-01-15            :   3 (+  3,=  0,-  0), 100.0 %
Renegade 0.7.0                :   3 (+  3,=  0,-  0), 100.0 %
Mess 0.0.2                    :   2 (+  2,=  0,-  0), 100.0 %


Comments

Popular posts from this blog

New chess engine: HypnoS 190324 (derived from Stockfish)

New version chess engine: Lc0 BT4

SF-PRO 23.02.2024 wins Strong Engines Tournament (Tests by Jörn Gronemann, Heide, 2024.03.01)

INCOGNITO 7 and Killfish 130324 wins Strong Engines Tournament (Tests by Jörn Gronemann, Heide, 2024.03.15)

SF-PRO 08.03.2024 wins New Engines Test, 09-10.03.2024

Chess engine: SF 16.1 MPV

Chess Engines Diary Rating (Stockfish and clones) - 03.03.2024