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Rating


New Chess Engines Diary Ranking CEDR - 01.09.2026

Here is the latest CEDR chess engine ranking. We would like to highlight a few new updates:
  • Starting this month, we are using a new tool to calculate ratings – Chess Rating Studio Pro.
  • The new game database (as of August 1, 2026) has been cleaned of very weak engines, outdated versions, and engines released many years ago. However, the legacy database containing over 900,000 games is still available for download.
  • Due to the smaller number of games in the new database, we have reduced the minimum threshold for ranking calculations to 100 games.
  • The anchor engine remains Critter 1.6a, set at 3250.
All 85.078 games CEDR 01.09.2026 download .


Chess Engines Diary Ranking CEDR - 01.09.2026

Pl Engines Rating Games W-D-L Points
1 Stockfish 20260810 Ivec 3880.4 168 70-98-0 119.0
2 Wreckless 0.2.0 3864.7 411 199-212-0 305.0
3 Reckless 0.10.0 dev-7300f044 3846.6 812 129-666-17 462.0
4 Torch-4 1.01 3827.8 241 51-186-4 144.0
5 PlentyChess 8.0.0 3827.1 741 84-645-12 406.5
6 Coda 0.9.4 3818.3 485 91-385-9 283.5
7 Integral 7 8bab JA 3816.4 509 53-455-1 280.5
8 Obsidian 16.15 SE 3814.8 2,434 225-2154-55 1302.0
9 Halogen 16.7.2 3812.2 108 21-76-1 59.0
10 Pawnocchio 2.0 3808.0 180 4-170-6 89.0
           
11 Cinder 0.6.1 3806.8 431 103-320-8 263.0
12 Triumviratus 6.0 3804.8 1,008 161-820-27 571.0
13 Stormphrax 8.0.0 3799.8 1,713 116-1540-57 886.0
14 Alexandria 9.0.0 JA 3799.3 2,929 241-2579-109 1530.5
15 Hobbes 3.0 JA 3798.9 164 37-119-8 96.5
16 Raphael 4.3.0 3797.5 186 16-165-5 98.5
17 Viridithas 20.0.0 3793.7 1,824 123-1626-75 936.0
18 Caissa 1.26 3792.6 196 62-128-6 126.0
19 Dragon 3.3 3788.6 2,823 335-2358-130 1514.0
20 Berserk 14 JA 3783.9 902 106-757-39 484.5
           
21 Astra 7.0 JA 3770.7 342 44-285-13 186.5
22 RubiChess 20260308 3766.9 142 5-130-7 70.0
23 Clover 9.1 3766.5 394 55-314-25 212.0
24 Devre 7.0 JA 3765.9 474 107-344-23 279.0
25 Horsie 1.1.0 JA 3765.3 306 21-262-23 152.0
26 Starzix 6.1 3763.7 142 8-122-12 69.0
27 Lc0 0.32.1 3757.8 376 43-304-29 195.0
28 Quanticade Phoenix 4.0 3757.6 1,443 81-1282-80 722.0
29 Minke 7.0.0 3756.6 128 41-81-6 81.5
30 Allie 0.8-dev 3751.9 112 14-84-14 56.0
           
31 Motor 0.9.0 3749.7 1,658 138-1399-121 837.5
32 Renegade 1.3.1 3744.8 582 46-480-56 286.0
33 Lizard 11.2 3742.7 810 65-691-54 410.5
34 PZChessBot 7.1 3742.2 330 48-260-22 178.0
35 Tarnished 6.0 3739.2 652 49-548-55 323.0
36 Uralochka 3.42a 3733.0 395 72-300-23 222.0
37 Fritz 21 3731.2 1,615 97-1372-146 783.0
38 Icarus 1.1.1 JA 3728.4 360 120-198-42 219.0
39 Velvet 9.0.0 dev7 JA 3717.9 451 78-342-31 249.0
40 Prune 4.0.1 JA 3715.7 158 36-109-13 90.5
           
41 Booot 7.4 3710.5 904 113-708-83 467.0
42 Igel 3.7.0 3709.6 200 49-135-16 116.5
43 Titan 1.1.0 JA 3707.4 438 39-367-32 222.5
44 Seer 2.8.0 JA 3704.4 592 34-505-53 286.5
45 Hypersion 3.2 3703.6 244 44-160-40 124.0
46 Tcheran 13.0 3702.7 873 297-465-111 529.5
47 Arasan 25.4 JA 3697.2 119 14-95-10 61.5
48 Rebel-EAS 2.0 3696.8 400 57-316-27 215.0
49 Zangdar 7 JA 3696.6 178 53-96-29 101.0
50 Akimbo 1.1.0 JA 3688.3 424 33-367-24 216.5
           
51 Revenge 4.0 3687.4 715 78-561-76 358.5
52 Gaia 4.2.5 3681.1 134 7-108-19 61.0
53 Chess System Tal 2.07 E1019 3678.8 675 72-500-103 322.0
54 RofChade 3.1 3674.3 798 97-616-85 405.0
55 Clarity 8.0.0 3674.0 330 59-234-37 176.0
56 Koivisto 9.2 JA 3670.2 468 33-375-60 220.5
57 Spaghet BologNNese 1.0 3666.6 422 55-327-40 218.5
58 Equisetum 1.30 JA 3664.2 377 49-290-38 194.0
59 Dragon free 3660.4 605 90-452-63 316.0
60 Peacekeeper 3.01 3656.4 206 27-157-22 105.5
           
61 Cataphract 1.5 JA 3652.1 122 26-76-20 64.0
62 Altair 7.2.1 JA 3645.9 571 117-386-68 310.0
63 Heimdall 1.5.0 3644.5 347 35-240-72 155.0
64 Ruthorin 1.9.9 3642.6 197 93-76-28 131.0
65 Zigqueen 6.0.0 3632.7 156 72-68-16 106.0
66 Elixir 3.0 JA 3631.9 261 47-192-22 143.0
67 Fire 10 3630.9 530 84-363-83 265.5
68 Simpler 2.0.0 3614.0 112 2-79-31 41.5
69 Bread 4.0.0 3613.2 621 138-328-155 302.0
70 Deep Shredder 14 3608.9 134 6-92-36 52.0
           
71 Texel 1.13a4 JA 3602.6 638 118-392-128 314.0
72 Rose 1.0.0 JA 3600.2 252 113-85-54 155.5
73 SlowChess 2.9 3595.0 706 81-490-135 326.0
74 Tenax 1.0 3594.6 450 84-299-67 233.5
75 Ursus 1.1.0 3587.1 156 71-60-25 101.0
76 Monty 20260512 3573.9 188 25-118-45 84.0
77 Lunar 0.4.0 3572.4 103 49-49-5 73.5
78 Pawn 4.0.4 JA 3570.2 572 96-344-132 268.0
79 Turbulence 0.0.8 JA 3566.1 173 109-42-22 130.0
80 Ynode 0234 3564.0 240 77-134-29 144.0
           
81 Superultra 2.1 JA 3558.3 598 126-373-99 312.5
82 MORS 0.1.0 3556.4 133 31-63-39 62.5
83 Quirky 3.0 3553.0 110 5-70-35 40.0
84 Avalanche 4.0.0 3551.2 188 7-109-72 61.5
85 Sirius 9.0 3550.7 428 103-263-62 234.5
86 Minic 3.46 JA 3549.3 250 38-142-70 109.0
87 Petrel 4.0 JA 3545.2 164 62-80-22 102.0
88 Winter 5.0 JA 3540.4 116 34-65-17 66.5
89 Sykora 4.0 3538.1 156 58-75-23 95.5
90 Lambergar 1.5 3534.2 251 42-149-60 116.5
           
91 Clockwork 20260806 3526.6 186 93-55-38 120.5
92 Wasp 7.16 3525.3 170 17-95-58 64.5
93 Tucano 12.17 JA 3524.8 396 62-256-78 190.0
94 Willow 4.0.0 3524.3 421 58-284-79 200.0
95 Rodent V 1.1 3517.6 318 113-121-84 173.5
96 Patricia 5.0 3514.0 530 145-231-154 260.5
97 Gargantua 2.1 3511.7 100 37-42-21 58.0
98 JustBot 0.3.0 3509.3 114 72-31-11 87.5
99 Weiawaga 6.0.0 3508.5 104 40-52-12 66.0
100 Rice 8.0.0 3504.9 503 79-333-91 245.5
           
101 Thrawn 3.1 3503.1 130 77-42-11 98.0
102 Bagatur.cpp 1.0 3503.1 408 161-155-92 238.5
103 Marvin 6.3.0 3501.6 150 25-98-27 74.0
104 Expositor 5 JA 3495.0 240 52-139-49 121.5
105 Panda 2.0 JA 3493.1 188 30-67-91 63.5
106 Stallion GB Edition 3491.4 137 46-62-29 77.0
107 Stash 37.10 JA 3482.8 384 70-189-125 164.5
108 Sapling 1.2.7 3478.6 269 50-131-88 115.5
109 Arcanum 2.8 3478.3 200 59-102-39 110.0
110 Askaig 20260704 3477.8 132 81-29-22 95.5
           
111 Midnight 9 JA 3476.0 311 44-195-72 141.5
112 Leorik 3.2 3468.4 183 36-115-32 93.5
113 Weiss 2.1 JA 3464.8 420 81-262-77 212.0
114 Cheng4 0.48 3452.8 332 42-227-63 155.5
115 Cwtch 6 3451.0 220 14-121-85 74.5
116 Myrddin 0.96 JA 3441.8 120 44-58-18 73.0
117 Illumina 3.0 JA 3431.8 339 52-176-111 140.0
118 Chessnix 1.4 3431.7 121 38-57-26 66.5
119 Perseus 1.1 JA 3418.1 100 28-55-17 55.5
120 Jackal 2.0.0 3417.5 196 52-60-84 82.0
           
121 Bitbit 1.7 3414.9 236 80-73-83 116.5
122 Schneckbert 3.0 JA 3408.9 140 80-38-22 99.0
123 Counter 5.5 3408.5 415 61-259-95 190.5
124 Pea 9.1 3401.5 228 57-82-89 98.0
125 Pedantic 2.1.0 3398.0 280 48-174-58 135.0
126 Caligula 7.0 3397.3 107 24-58-25 53.0
127 MrBob 1.3.0 JA 3397.0 312 69-141-102 139.5
128 Sable 3.0.0 3396.5 186 82-45-59 104.5
129 Nalwald ab11891 JA 3390.9 124 21-78-25 60.0
130 NARC Next 4.1 JA 3387.8 197 59-59-79 88.5
           
131 Onyx 2.0 3385.4 267 107-61-99 137.5
132 Frozenight 7.0.0 JA 3381.3 256 54-125-77 116.5
133 Xiphos 0.6.1 3369.7 132 28-75-29 65.5
134 EveAnn 5.1 3367.5 105 19-56-30 47.0
135 Odonata 1.1.0 3364.8 190 41-95-54 88.5
136 Tunguska 2.1 3364.1 208 65-95-48 112.5
138 RukChess 4.2.0 JA 3363.8 170 42-80-48 82.0
139 Zahak 10 JA 3362.6 232 52-97-83 100.5
140 Theoria 0.3.1 3357.2 120 14-36-70 32.0
           
141 Anduril 0.1 JA 3343.9 184 32-94-58 79.0
142 Potential-unlocked JA 3342.8 146 48-41-57 68.5
143 Princhess 0.22.0 JA 3342.7 320 71-75-174 108.5
144 Lynx 1.11.0 3334.3 168 26-94-48 73.0
145 Sturddle 2.5.0 3319.3 215 45-94-76 92.0
146 Maelstrom 3.3.0 3319.1 252 78-93-81 124.5
147 Maestro 1.2.1 JA 3316.2 120 31-53-36 57.5
148 Gyatso 1.5.0 3304.9 146 47-35-64 64.5
149 Drofa 4.1.1 JA 3303.6 236 47-113-76 103.5
150 MittensCEDR 08.2026.v2 3300.1 145 30-39-76 49.5
           
151 Laser 1.8 JA 3295.8 439 60-165-214 142.5
152 Lozza 10 3291.5 194 56-77-61 94.5
153 Kociolek 2.1 JA 3287.1 160 38-70-52 73.0
154 DanaSah 9.1 JA 3282.4 243 55-97-91 103.5
155 Monolith 3 3271.0 217 48-96-73 96.0
156 Svart 6 JA 3266.2 211 41-107-63 94.5
157 Vajolet2 3.1.0 3265.0 148 17-85-46 59.5
158 Jet 1.2 3264.6 278 25-175-78 112.5
159 Yakka 1.5 3259.9 173 51-75-47 88.5
160 Critter 1.6a 3250.0 2,596 431-746-1419 804.0
           
161 Dual 0.4.2 3241.2 204 25-48-131 49.0
162 Dog 4.10 3234.3 137 43-55-39 70.5
163 Cadie 2.1 JA 3219.0 174 34-80-60 74.0
164 DanaSah 9.1 3214.5 177 25-57-95 53.5
165 Rusty Rival 1.0.53 3214.4 320 99-59-162 128.5
166 Flounder 0.5.0.2 3212.6 186 38-82-66 79.0
167 Orion 1.1 3209.8 176 45-73-58 81.5
168 Fizbo 2 JA 3207.5 194 44-74-76 81.0
169 Beef 0.3.6 JA 3206.1 100 32-25-43 44.5
170 Ember 1.2.0 JA 3205.6 228 47-45-136 69.5
           
171 Gecko 0.40.1 3203.0 103 35-34-34 52.0
172 Demolito 2025-12-16 3198.7 151 30-59-62 59.5
173 Admete 1.9.0 JA 3191.7 313 55-56-202 83.0
174 ChessBrainVB 4.10 3190.0 133 49-38-46 68.0
175 Noggin 2.1 3169.4 153 62-44-47 84.0
176 Priessnitz 2.0.1 JA 3161.3 167 27-67-73 60.5
177 Ceibo 1.10 3149.9 278 62-57-159 90.5
178 Akkad 0.52b JA 3145.6 165 46-24-95 58.0
179 Invictus r391 JA 3143.6 155 39-45-71 61.5
180 Throne 0.2 3141.7 162 42-59-61 71.5
           
181 Kobra 2.1 3140.2 167 64-38-65 83.0
182 Aku 2025.7.9 3119.8 135 7-61-67 37.5
183 GOOB 2.1 3084.5 133 14-16-103 22.0
184 Wize 1.0 JA 3074.3 123 24-55-44 51.5
185 Chess-3 4.0 3059.0 215 51-54-110 78.0
186 Revolver 2.0 JA 3049.4 156 43-29-84 57.5
187 4ku 5.1 3048.6 164 52-31-81 67.5
188 Spaghet BologNNese 1.1.3 JA 3035.2 134 0-5-129 2,5
189 Bobcat 8.0 JA 3016.3 152 40-44-68 62.0
190 Eleanor 4.1 JA 3009.5 151 61-6-84 64.0
           
191 Truncator 1.0 2996.2 131 25-42-64 46.0
192 Sentinel 2.0 JA 2995.9 161 46-36-79 64.0
193 Pluto 1.0.1 2984.5 169 43-48-78 67.0
194 Tomcat 1.0 JA 2978.7 208 32-53-123 58.5
195 Byte-knight 4.0.0 2961.3 174 46-43-85 67.5
196 Seawall 20250322 JA 2932.2 123 21-35-67 38.5
197 Cheese 3.3.0 JA 2930.2 296 49-49-198 73.5
198 Ratsu 2.1.0 2918.4 186 39-23-124 50.5
199 KnightX 4.92 2868.7 118 22-30-66 37.0
200 MadChess 3.3 2857.1 180 30-35-115 47.5
           
201 Lux 5.0 2849.6 222 48-32-142 64.0
202 Colossus Chess 2026a 2833.2 145 11-9-125 15,5
203 VeryChess 0.6.0 2803.7 130 5-3-122 6,5
204 Scoria 4.4.9 JA 2803.5 243 21-15-207 28,5
205 Dorky 5.0 2796.7 168 17-10-141 22.0
206 Fatalii 0.10.1 2764.8 204 31-26-147 44.0
207 Chal 1.4.1 2734.7 125 21-21-83 31,5
208 Drosophila 1.6 JA 2734.6 202 31-22-149 42.0
209 Cepimetheus 15.0.0 2659.7 165 21-5-139 23,5
210 BikJump 3.1 2484.3 101 08.02.1991 9.0
           
211 Luminex 5.15.0 2472.3 275 22-9-244 26,5
212 Apollo 1.2.1 JA 2193.0 156 1-3-152 2,5
213 Tuna2 JA 2034.6 186 1-0-185 1.0

Stockfish and derivatives - new Chess Engines Diary Ranking CEDR - 08.09.2026

Pl Engines Rating Games W-D-L Score % Points
1 CorChess 20260810 3893.4 173 77-96-0 72.3 125.0
2 Stockfish 20260810 Ivec 3880.4 168 70-98-0 70.8 119.0
3 Raid 7.3 3879.1 202 76-125-1 68.6 138.5
4 Artemis 37TR_PrO 3865.2 100 33-67-0 66.5 66.5
5 SF-POLY 120726 3865.2 100 33-67-0 66.5 66.5
6 Strato III 3861.8 707 255-450-2 67.9 480.0
7 Sky II 3861.4 284 17-261-6 51.9 147.5
8 DarkSeid 12.3 ME 3861.0 501 40-461-0 54.0 270.5
9 Horizon 3856.9 268 65-203-0 62.1 166.5
10 Revolution 6.10-310726 3853.8 460 102-354-4 60.7 279.0
11 Dark SisTer 15.6 3852.6 140 5-134-1 51.4 72.0
12 Killfish PB 260126 3851.3 206 17-188-1 53.9 111.0
13 DarkZoryn 2.0 3849.3 187 47-140-0 62.6 117.0
14 Cool Iris 18 3848.6 684 167-511-6 61.8 422.5
15 Hlamnick 210826 3848.5 225 37-186-2 57.8 130.0
16 Stockfish 18 3847.3 2500 244-2234-22 54.4 1361.0
17 Yuliirma 5.0 3846.5 816 121-695-0 57.4 468.5
18 Yuliana 7.0 3846.3 894 175-719-0 59.8 534.5
19 YuliGM Pro 20 3845.5 1130 246-864-20 60.0 678.0
20 TACTICAL 090626 3843.3 183 18-162-3 54.1 99.0
             
21 DON dev-20260302 3840.0 160 9-145-6 50.9 81.5
22 Nextfish 230726 3837.0 420 41-372-7 54.0 227.0
23 Esox III 3836.9 168 3-162-3 50.0 84.0
24 AbbyStein 2.8 3835.7 382 54-324-4 56.5 216.0
25 Kookaburra 3.11 3835.2 1,006 35-950-21 50.7 510.0
26 ShashChess 41.1 3835.2 418 17-395-6 51.3 214.5
27 Brainlearn 31 3833.5 1,167 57-1084-26 51.3 599.0
28 JigSaw 8.1 3829.2 96 6-86-4 51.0 49.0
29 YuliGM 2026 3819.7 542 42-471-29 51.2 277.5
30 Fisherov chess monk 1.2 3819.1 907 215-684-8 61.4 557.0 


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