www.computerchess.org.uk/ccrl/4040 (40/15 and 15m+10s)
www.computerchess.org.uk/ccrl/404 (BLITZ 2m+1s)
www.computerchess.org.uk/ccrl/402.archive/ (BLITZ 40/2 Archive)
www.computerchess.org.uk/ccrl/404FRC (FRC 40/2)
www.computerchess.org.uk/ccrl/Chess324/ (Chess324)
Our 40 moves in 15 minutes repeating (including 15 minutes with 10 second increments) and 2 minutes with 1 second increments are both adjusted to the Intel i7 4770k (3.5GHz) using the Stockfish 10 64-bit benchmark.
All of our current testing uses AVX2 compiles where available.
Be aware that in the early stages of testing, an engine's rating can often fluctuate a lot.
It is strongly advised to look at the many other rating lists available in order to get a more accurate overall picture of an engine's rating relative to others.
The inclusion or exclusion of engines in our lists should not be taken as our group making a statement about their legality or status. Where there is controversy, it is usually mentioned in the engine notes.
Thanks to:
- Kirill Kryukov who wrote the scripts that produce all CCRL data, with recent processing speed-ups from Martin Sedlak (Cheng author).
- all of our currently active testers (Graham, Gabor, Basti, Shaun, Andres and Matt).
- Jay Honnold for both the tournament viewer and for hosting Graham's live broadcasts.
- Jonathan Gilchrist for the utility CCRL notifier, which alerts engine authors when their engine is playing in a live broadcast.
- Anton Mihailov (Chessdom.com) for hosting our rating lists for many years.
- Sam Roelants (Simbelmyne author) who has taken over the hosting of our rating lists.
- all engine authors. Without you, CCRL wouldn't exist.
40/15 and 15m+10s testing this week will include (thanks to Graham, Andres and Shaun. Live broadcast given where applicable):
Live broadcasts of some Gauntlets can be made available upon request.
(Web based viewer courtesy of Jay Honnold, with additions by Lana (Princhess), Jost Triller (Nalwald) and Finn Eggers (Koivisto).
122nd Amateur Series Division 5 Tournament (finishing Monday) Web based viewer http://ccrl.live/16065
122nd Amateur Series Division 6 Tournament (finishing Monday) Web based viewer http://ccrl.live/16070
122nd Amateur Series Division 7 Tournament (continuing) Web based viewer http://ccrl.live/16064
122nd Amateur Series Division 8 Tournament (starting Monday) Web based viewer http://ccrl.live/16065
122nd Amateur Series Division 9 Tournament (starting Monday) Web based viewer http://ccrl.live/16070
Sorcery And Glamour Tournament (finishing Thursday) Web based viewer http://ccrl.live/16069
New Tournament (starting Thursday) Web based viewer http://ccrl.live/16069
Superultra 2.1 64-bit 4CPU Gauntlet (finishing Friday) Web based viewer http://ccrl.live/16061
Devre 6.0 64-bit 4CPU Gauntlet (continuing) Web based viewer http://ccrl.live/16062
Ynode 0219 64-bit 4CPU Gauntlet (continuing) Web based viewer http://ccrl.live/16063
Caissa 1.24 64-bit 4CPU Gauntlet (starting Friday) Web based viewer http://ccrl.live/16061
Caissa 1.24 64-bit Gauntlet (continuing)
Cinder 0.4.1 64-bit Gauntlet (continuing)
Petrel 3.1 64-bit Gauntlet (continuing)
JackyChess 25.12 64-bit Gauntlet (continuing)
Wilted 1.0.0.0 64-bit Gauntlet (finishing Monday)
Quirky 2.1 64-bit Gauntlet (finishing Tuesday)
Elenour 3.0 64-bit Gauntlet (starting Monday)
Prune 3.0.0 64-bit Gauntlet (starting Tuesday)
Various 1CPU Gauntlets and Tournaments being run by Andres (usually 3-4 per week)
2m+1s testing since the last update report has included (thanks to Gabor):
Quirky 2.1 64-bit
Soomi 1.1.5 64-bit
Caligula 2.0 64-bit
Tcheran 7.0 64-bit
Petrel 3.1 64-bit
Isa 4.5 64-bit
Echekinator 1.0 64-bit
Orion 1.1 64-bit
Prune 2.2.0 64-bit
Hunyadi 2.0 64-bit
Shaun is continuing to run games in the background.
FRC 40/2 testing since the last update report has included (thanks to Basti):
Princhess 0.21.0 64-bit (completed)
Code: Select all
CCRL 40/2 FRC Rating List - All engines, best versions only
799676 games played by 557 programs, run by 2 testers
Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 2 minutes on an Intel i7-4770k.
Computed on November 30, 2025 with Bayeselo based on 799'676 games
Tested by CCRL team, 2005-2025, http://ccrl.chessdom.com/ccrl/404FRC/
Rank Engine ELO + - Score AvOp Games
1 Torch v4 4090 +10 -10 63.8% -86.6 5112
2 Stockfish 17.1 4081 +10 -10 60.3% -63.2 4412
3 Reckless 0.8.0 4077 +13 -13 60.2% -61.7 2261
4 PlentyChess 7.0.0 4054 +14 -14 54.8% -28.7 1765
5 Clover 9.1 4026 +12 -12 52.3% -14.1 2243
6 Caissa 1.23 4022 +14 -14 49.8% +1.5 1660
7 Viridithas 18.0.0 4021 +13 -13 50.0% +0.4 2108
8 Stormphrax 7.0.0 4017 +11 -11 50.2% -1.4 3358
9 Berserk 13 4014 +9 -9 55.3% -34.9 6399
10 Dragon 3.3 by Komodo 3993 +8 -8 53.3% -22.7 9076
11-12 Ethereal 14.25 3968 +8 -8 50.6% -5.1 8439
11-12 pawnocchio 1.8.1 3968 +12 -12 48.9% +5.4 2258
13 Horsie 1.1 3960 +10 -10 44.2% +35.9 4498
14 Lizard 11.2 3931 +11 -11 46.2% +23.4 3041
15 RubiChess 20240817 3916 +10 -10 46.4% +22.2 4538
16 Renegade 1.2.0 3912 +11 -11 61.0% -72.8 3437
17 Velvet 8.1.0 3892 +10 -10 48.9% +6.4 3688
18 Tarnished v4.0 (Consort) 3883 +14 -14 50.9% -5.5 1500
19 Revenge 4.0 3877 +11 -11 54.6% -30.2 3039
20 Halogen 15.0.1 3843 +15 -15 48.4% +9.1 1500
21 Peacekeeper 3.01 3821 +9 -9 39.2% +70.7 4577
22 Heimdall 1.4.0 3819 +14 -14 52.2% -16.0 1650
23 RofChade 3.1 3809 +8 -8 39.6% +68.8 7648
24 Altair 7.0.0 3776 +9 -9 45.3% +31.3 4447
25 Akimbo 1.0.0 3768 +10 -10 48.4% +9.3 3717
26 Deep Sjeng 36a30 3752 +9 -9 44.7% +35.1 4853
27 Black Marlin 9.0 3745 +10 -10 42.9% +48.3 3763
28 Sirius 9.0 3735 +12 -12 46.9% +22.0 2449
29 SlowChess Blitz 2.9 3718 +6 -6 44.9% +36.8 13607
30 Wasp 7.00 3712 +11 -11 51.8% -12.1 2778
31 Calvin 6.1.1 3710 +13 -13 48.7% +9.9 1902
32 Minic 3.41 3694 +10 -10 47.1% +17.4 3619
33 Devre 6.0 3683 +13 -13 47.3% +19.6 1858
34 Winter 4.0 3677 +12 -12 57.0% -50.6 2426
35 pawn 4.0 3675 +14 -14 54.7% -34.3 1795
36 Equisetum 1.0 3658 +10 -10 44.9% +37.1 3623
37 Marvin 6.3.0 3628 +10 -10 46.3% +26.0 3345
38 Patricia 5.0 3625 +15 -15 47.5% +17.2 1603
39 Cheng 4.48 3592 +11 -11 49.4% +5.7 3201
40 Smallbrain 7.0 3585 +8 -8 49.3% +4.8 5494
41 Stash 37.0 3562 +13 -13 56.3% -46.3 1932
42 Frozenight 6.0.0 3537 +9 -9 49.5% +2.8 4413
43 Princhess 0.21.0 3503 +17 -17 33.4% +122.0 1194
44 Scorpio 3.0.15.11 3468 +11 -11 52.5% -22.3 2992
45 Lc0 0.30.0 CPU-dnnl 791556 3467 +17 -17 50.5% -6.0 936
46 Hiarcs 15.3.1 3466 +13 -13 43.8% +51.4 1961
47 Nalwald 19 3445 +11 -11 61.6% -93.8 2828
48 Defenchess 2.3 3421 +7 -7 44.2% +44.2 7672
49 Lynx 1.11 3419 +14 -14 51.9% -16.1 1650
50 Weiss 2.0 3401 +6 -6 39.2% +83.3 10325
51 Houdini 4 3400 +9 -9 60.1% -91.8 5550
52-53 Schooner 2.2 3388 +6 -6 39.6% +78.5 12485
52-53 Shredder 13 3388 +5 -5 40.7% +69.1 20623
54 Nemorino 6.00 3364 +7 -7 40.9% +69.5 9590
55 Chiron 5 3349 +7 -7 41.6% +65.4 8692
56 Drofa 4.1.0 3340 +14 -14 43.0% +52.3 1748
57 Demolito 2021-10-04 3314 +8 -8 41.7% +65.0 6108
58 Critter 1.6a 3300 +5 -5 44.6% +42.5 22776
59 Bagatur 5.1c 3295 +18 -18 44.8% +42.1 1000
60 Senpai 2.0 3221 +7 -7 47.0% +23.4 9128
61 Vajolet2 2.8 3220 +7 -7 45.7% +32.9 8930
62 DanaSah 9.0 3196 +12 -12 49.3% +3.9 2474
63 Fire 3.0 3180 +9 -9 35.7% +127.2 6000
64 Rybka 4.1 3166 +5 -5 41.4% +71.4 16012
65 Monolith 2 3127 +7 -7 49.6% +2.6 8162
66 monty v1.0.0 3119 +16 -16 43.4% +53.2 1450
67 Naum 4.6 3085 +6 -6 46.0% +33.7 11944
68 Stoofvlees IIb5 3078 +11 -11 52.6% -20.9 3413
69 Rodent IV v0.26 3047 +9 -9 46.7% +25.4 4672
70 Cheers 1.0.0 3046 +13 -13 55.5% -43.2 2105
71 Cheese 3.3.0 2980 +11 -11 49.8% +1.1 3193
72 Polaris 1.8.1 2968 +12 -12 52.2% -22.7 3183
73 Spike 1.4 Leiden 2938 +6 -6 38.6% +92.9 10968
74 The Baron 3.45.1 2925 +13 -13 50.0% +1.8 2502
75 Bobcat 8.0 2919 +8 -8 45.5% +34.4 6677
76 EXchess 7.92b 2895 +10 -10 43.0% +56.8 3906
77 Daydreamer 2.0.0-pre2 2856 +12 -12 54.1% -35.7 3330
78 Cyclone xTreme Fear 2825 +8 -8 47.4% +20.2 7430
79 Tornado 8.0 2804 +15 -15 53.1% -25.4 1520
80 Arminius 2018-12-23 2787 +11 -11 48.6% +12.1 3720
81 GNU Chess 5.60 2769 +10 -10 45.7% +33.6 4224
82 Jacky Chess 24.04 2764 +15 -15 37.0% +105.1 1650
83-84 Colossus 2025b 2752 +19 -19 51.4% -11.4 1100
83-84 Octochess 5190 2752 +10 -10 51.1% -8.5 4230
85 Loop for Chess960 2749 +8 -8 53.2% -28.6 8620
86 Dumb 2.3 2747 +18 -18 52.4% -19.4 1200
87 Bright 0.5c 2721 +12 -12 46.0% +34.7 2947
88 Frenzee 3.5.19 2702 +10 -10 54.4% -37.3 4678
89 Karballo 1.8 2701 +14 -14 52.2% -17.7 1970
90 Fridolin 4.00 2670 +11 -11 43.8% +53.1 3442
91 Coiled 1.1 (no NNUE) 2622 +12 -12 40.2% +84.5 3138
92 Fatalii 0.9.0 2593 +19 -19 70.6% -176.1 1199
93 Nebula 2.0 2592 +9 -9 46.3% +31.6 5380
94 Maverick 1.5 2590 +11 -11 47.1% +27.2 3669
95 Alfil 13.1 2578 +14 -14 47.9% +16.9 2020
96 Movei 00.8.438 2553 +8 -8 46.5% +29.1 8520
97 Pharaon 3.5.1 2531 +8 -8 46.0% +31.8 8970
98-99 Galjoen 0.40.1 2523 +14 -14 44.5% +47.3 2064
98-99 Hermann 2.8 2523 +10 -10 49.0% +9.9 4810
100 Amyan 1.72 2510 +10 -10 48.5% +12.3 4920
101 Jonny 2.83 2507 +10 -10 48.2% +14.9 5620
102 Hamsters 0.7.1 2500 +9 -9 48.5% +11.5 5810
103 Ufim 8.02 2468 +9 -9 44.9% +43.1 8168
104 Tantabus 2.0 64-bit 2466 +13 -13 48.1% +14.1 2495
105 Myrddin 0.89g 2396 +15 -15 47.7% +11.3 1932
106 LittleThought 1.052 2383 +10 -10 45.2% +36.6 5304
107 TJchess 1.3 2330 +20 -20 44.1% +50.9 1052
108 Teki 2 2308 +13 -13 48.0% +13.8 2746
109 Hussar 0.4 2307 +11 -11 41.9% +67.0 4151
110 Patzer 3.80 2276 +11 -11 41.5% +72.9 4249
111 Aice 0.99.2 2232 +10 -10 39.3% +88.7 6172
112 Ayito 0.2.994 2218 +10 -10 38.6% +98.5 5846
113 Betsy Fischer 2199 +12 -12 37.9% +104.2 3550
114 Robocide 0.4 2172 +14 -14 54.6% -44.6 3080
115 Camel 1.6.0 2160 +23 -23 71.5% -186.4 1045
116 Chispa 4.0.3 2141 +14 -14 42.4% +66.1 2660
117 Homer 1.02 2093 +14 -14 50.7% -13.5 2600
118 Juggernaut 1.01 2036 +18 -18 48.7% +10.5 1649
119 Mayhem 8.2 2024 +21 -21 61.7% -99.7 1193
120 RamJet 0.14 2000 +16 -16 51.9% -20.7 2538
121 Taktix 2.23x 1873 +16 -16 36.4% +121.4 2482
122 BigLion 2.23x 1857 +16 -16 34.8% +144.2 2764
123 Sapeli 2.0 1853 +17 -17 36.6% +115.2 2180
124 KhepriChess 3.0.0 1849 +25 -25 30.5% +171.4 748
125 Roce 0.0390 1723 +25 -25 36.6% +116.9 740Code: Select all
CCRL-Chess324 Rating List - All engines, best versions only
126407 games played by 69 programs, run by 25 testers
Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: 1'+ 0.6" on Ryzen 5 3500u.
Computed on October 5, 2025 with Bayeselo based on 126'407 games
Tested by CCRL team, 2005-2025, http://www.computerchess.org.uk/ccrl/Chess324/
Rank Engine Elo + - Score AvOp Games
1 Torch v4 3853 +6 -6 64.1% -94.8 4120
2 Reckless 0.8.0 3847 +9 -9 60.9% -71.7 2100
3 Stockfish 17.1 3845 +6 -6 72.9% -164.5 5721
4 PlentyChess 7.0.0 3805 +9 -9 54.5% -29.9 1950
5 Obsidian 16 3793 +7 -7 53.6% -25.4 3448
6 Caissa 1.23 3770 +9 -9 47.7% +14.6 1949
7 Alexandria 8.1.2 3764 +9 -9 53.6% -24.6 2100
8 Viridithas 18.0.0 3763 +8 -8 48.1% +13.0 2400
9 Clover 9.1 3760 +9 -9 46.2% +25.3 1950
10 Berserk 13 3759 +5 -5 61.3% -79.2 7069
11 Integral v7 3750 +9 -9 45.5% +31.0 2249
12 Stormphrax 7.0.0 3740 +9 -9 44.4% +38.3 2196
13 Dragon 3.3 by Komodo 3736 +5 -5 58.0% -56.7 6996
14 pawnocchio 1.8.1 3696 +9 -9 39.7% +69.9 2098
15 RubiChess 20240817 3688 +6 -6 57.0% -48.6 5200
16 Ethereal 14.25 FRC 3681 +6 -6 55.9% -41.4 5201
17 Starzix 6.0 3666 +6 -6 54.4% -31.5 4550
18 Motor 0.8.0 3657 +6 -6 53.1% -21.7 4250
19 Quanticade Orion 2.0 3650 +9 -9 45.1% +33.9 2005
20 Koivisto 9.2 3632 +6 -6 49.5% +3.5 4950
21 Revenge 4.0 3631 +6 -6 50.1% -1.3 3850
22 Lizard 11.0 3625 +6 -6 48.4% +10.5 4600
23 Velvet 8.1.0 3618 +6 -6 47.3% +17.3 4000
24-25 CS Tal 2.00 EAS 3608 +6 -6 45.9% +27.3 4700
24-25 Seer 2.8.0 3608 +6 -6 45.7% +28.7 4800
26 Titan 1.1 3600 +6 -6 44.8% +34.0 4950
27 Uralochka 3.41a 3597 +6 -6 44.6% +35.6 4850
28 Clarity 7.2.0 3573 +6 -6 41.1% +60.1 4850
29 Rebel 16.3 3572 +6 -6 41.0% +61.1 4850
30 rofChade 3.1 3559 +6 -6 39.2% +74.4 4850
31 Ginkgo Santiago 1.0 3557 +7 -7 39.6% +72.3 3950
32 Peacekeeper 3.0.1 3554 +6 -6 38.1% +80.1 4750
33 Heimdall 1.4.2 3542 +11 -11 46.4% +25.9 1500
34 Altair 7.0.0 3522 +6 -6 34.0% +112.6 4650
35 Black Marlin 9.0 3514 +7 -7 33.7% +116.4 3950
36 Akimbo 1.0.0 3506 +6 -6 31.5% +131.3 4300
37 Igel 3.5.0 3502 +6 -6 30.7% +136.2 4600
38 Deep Sjeng 3.6 a30 3494 +7 -7 30.2% +140.4 3800
39 Renegade 1.1.0 3490 +7 -7 29.8% +144.5 3800
40 Minic 3.41 3444 +7 -7 23.5% +194.3 3700
41 Wasp 7.00 3431 +7 -7 22.3% +207.7 3700
Created in 2005-2013 by CCRL team
Last games added on October 5, 2025DFRC 40/2 testing (thanks to Basti and Matt):
Code: Select all
CCRL DFRC Rating List - All engines, best versions only
5773 games played by 26 programs, run by 3 testers
Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: 30 seconds + 0.3 second
Computed on November 30, 2025 with Bayeselo based on 5'773 games
Tested by CCRL team, 2005-2025, http://ccrl.chessdom.com/ccrl/DFRC/
Rank Engine ELO + - Score AvOp Games
1 Stockfish 17.1 3797 +17 -17 68.6% -156.8 890
2 Torch v3 3786 +17 -17 64.6% -120.1 1097
3 Stormphrax 7.0.7 3744 +16 -16 60.7% -91.0 901
4 Berserk 20250321 3733 +21 -21 66.2% -137.4 552
5 Caissa 1.22 3710 +18 -18 56.1% -56.0 788
6 Viridithas 18.0.0-dev 3680 +18 -18 58.6% -75.7 672
7-8 Dragon 3.3 by Komodo 3669 +16 -16 50.6% -13.9 914
7-8 Horsie 1.1 3669 +18 -18 56.3% -58.3 680
9 PlentyChess 6.0.2 3668 +21 -21 57.2% -67.0 552
10 pawnocchio 1.7.2-dev 3651 +21 -21 55.3% -48.6 552
11 Calvin 6.1.1 3500 +21 -21 34.2% +115.0 552
12 Heimdall 1.4.0-beta-301171 3481 +21 -21 32.0% +135.6 552
13 Prelude dev (7e63da3) 3323 +26 -26 14.9% +306.8 552
14 Stash 37.0 3255 +26 -26 9.3% +391.6 680