New Chess Engines Diary Ranking CEDR

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The new game database (as of August 1, 2026) has been cleaned of very weak engines, outdated versions, and engines released many years ago.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.

All Games CEDR from 01.07.2026 download.

Here is a ranking list TOP 20 chess engines, complete ranking lists on our website: RATING

Rank	Player	Rating	Games	W-D-L	Score %	Opp Avg
1	Stockfish 18 JA	3842.2	1,754	235-1488-31	55.8	3770.9
2	Reckless 0.10.0 15.4.26	3832.2	246	19-218-9	52.0	3807.7
3	Integral 7 dev.322b JA	3820.2	275	107-163-5	68.5	3565.9
4	PlentyChess 8.0.0	3817.0	536	56-471-9	54.4	3764.4
5	Obsidian 16.15 SE	3811.9	2,238	192-1997-49	53.2	3774.2
6	Torch 4	3811.7	170	26-144-0	57.6	3699.4
7	Coda 0.9.0	3808.2	385	61-313-11	56.5	3725.0
8	Pawnocchio 2.0 d.a8f09e7	3799.7	136	11-122-3	52.9	3765.4
9	Alexandria 9.0.0 JA	3794.1	2,170	168-1924-78	52.1	3770.3
10	Dragon 3.3	3792.4	2,329	246-1980-103	53.1	3757.2

11	Stormphrax 8.0.0	3787.3	948	47-867-34	50.7	3780.6
12	Berserk 14 JA	3784.8	697	81-598-18	54.5	3734.4
13	Astra 7.0 JA	3784.7	224	32-191-1	56.9	3704.3
14	Cinder 0.5.0	3784.1	304	8-285-11	49.5	3791.2
15	Viridithas 19.0.1	3780.0	1,666	131-1438-97	51.0	3769.0
16	Raphael 4.3.0	3777.3	186	16-165-5	53.0	3743.6
17	Triumviratus 6.0	3772.4	250	20-223-7	52.6	3744.4
18	Halogen 16.5.0	3769.6	910	80-788-42	52.1	3745.6
19	Hobbes 3.0	3769.3	296	23-262-11	52.0	3748.4
20	Clover 9.1	3767.4	276	43-217-16	54.9	3709.8

Chess Engines Diary