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Rating

During the month of March, our testers conducted tournaments with over 25,000 games played. Thanks to this, the CEDR ranking for April 1, 2025 was calculated based on over 625,000 games!

The list only includes chess engines that have played at least 500 games in our tests.
The game database has been "cleaned" of games that had less than 10 moves.

Chess Engines Diary Rating CEDR – 01.04.2025
generated with Ordo 0.9.9 (anchor Critter 1.6a with 3230)
All 625.428 games, Time:3’+3” Minimum 500 games
Pl Engine Rating Score Games (%)
1 Stockfish 20241208 3766.6 343.00 624 54.97

Stockfish 17 3756.9 6921.00 12796 54.09
2 Obsidian 15.04 SE 3737.0 597.50 1080 55.32
3 Alexandria 8.0.0 JA 3728.7 398.50 738 54.00
4 PlentyChess 4.0.1 3720.9 1069.50 2019 52.97
5 Dragon 3.3 3719.8 5285.00 10240 51.61
6 Integral 7.0.0 JA 3716.6 575.00 1032 55.72
7 Berserk 13 3710.9 4575.50 8171 56.00
8 Caissa 1.21.7 JA 3709.0 349.50 684 51.10
9 Lc0 0.31.0 3705.5 343.50 654 52.52
10 Horsie 1.0.6 JA 3696.4 886.00 1674 52.93
11 Lizard 11.2 3685.5 990.00 1924 51.46
12 Viridithas 16.0.0 3684.2 417.00 758 55.01
13 RubiChess 20240817 3682.6 2324.50 4500 51.66
14 Ethereal 14.25 3679.2 3642.50 6682 54.51
15 Motor 0.8.0 JA 3673.2 1381.00 2816 49.04
16 Clover 8.0.1 3671.0 701.00 1447 48.45
17 Booot 7.4 3666.6 593.00 1194 49.66
18 Stormphrax 6.0.0 3663.6 977.00 1979 49.37
19 Devre 6.39 JA 3661.6 629.00 1230 51.14
20 Seer 2.8.0 JA 3660.7 339.50 730 46.51
21 Rebel EAS 3652.9 730.00 1356 53.83
22 Chess-System-Tal-2 3646.3 3926.00 7591 51.72
23 Uralochka 3.42 dev7 3646.3 835.00 1677 49.79
24 Titan 1.1.0 3645.8 1670.50 3335 50.09
25 Revenge 4.0 3645.0 692.50 1456 47.56
26 Arasan 25.0 3633.3 648.00 1240 52.26
27 Starzix 6.0 3631.6 1269.50 2981 42.59
28 Spaghet BologNNese 3630.7 584.00 1063 54.94
29 Velvet 8.1.0 3630.6 275.00 616 44.64
30 Akimbo 1.1.0 JA 3629.4 406.50 765 53.14
31 RofChade 3.1 3629.4 2142.50 4062 52.74
32 Igel 3.6.0 JA 3625.7 300.50 678 44.32
33 Dragon free 3621.9 934.00 1622 57.58
34 Clarity 7.2.0 3616.0 457.50 808 56.62
35 Koivisto 9.2 3615.6 2609.50 5308 49.16
36 Peacekeeper 3.01 3610.7 783.50 1615 48.51
37 Elixir 3.0 JA 3590.1 422.50 580 72.84
38 Altair 7.1.5 JA 3585.2 351.50 715 49.16
39 Fire 10 3584.6 423.50 939 45.10
40 Quanticade Electra 0.9 3563.2 315.50 553 57.05
41 Slowchess 2.9 3562.5 1811.00 3828 47.31
42 Black Marlin 9.0 3555.8 423.00 952 44.43
43 Alexander 4.0 3555.3 182.50 502 36.35
44 Halogen 12.12.3 JA 3543.4 324.00 798 40.60
45 Minic 3.39 3523.1 453.50 1019 44.50
46 Carp 3.0.1 3521.5 1177.00 2253 52.24
47 Tenax 0.9.5 3508.1 233.00 540 43.15
48 Willow 4.0 3501.2 290.00 671 43.22
49 Texel 1.11 3499.5 481.00 1034 46.52
50 Wasp 7.00 3493.5 489.00 993 49.24
51 Equisetum 1.0 3489.4 317.50 587 54.09
52 Pawn 3.0 3489.2 605.00 1207 50.12
53 Hiarcs 15.5 3485.1 543.50 1014 53.60
54 Rice 8.0.0 3478.4 414.00 904 45.80
55 Marvin 6.2.0 3458.1 439.00 691 63.53
56 Komodo 14.1 3457.1 449.50 995 45.18
57 Nemorino 6.00 3454.4 433.50 899 48.22
58 Pedone 3.1 3451.7 355.00 785 45.22
59 Midnight 9 3446.2 538.00 1039 51.78
60 Smallbrain 7.0 3441.7 282.50 557 50.72
61 Patricia 4.0 3408.9 288.50 876 32.93
62 Stash 35.26 JA 3408.3 383.00 742 51.62
63 Tucano 11.00.1 3408.2 349.50 640 54.61
64 Saturn 1.3 3390.9 326.50 590 55.34
65 Counter 5.5 3387.6 317.00 667 47.53
66 LTChess 9.3 3383.6 389.50 700 55.64
67 Expositor 4WR02 3382.2 354.50 773 45.86
68 Toga IV 1.1 JA 3374.1 378.00 807 46.84
69 Avalanche 2.1.0 3371.3 309.00 787 39.26
70 StockDory Starfish 0.1 3364.0 250.50 575 43.57
71 Xiphos 0.6.1 3361.6 465.50 976 47.69
72 Pedantic 2.1.0 3356.6 436.50 718 60.79
73 Fritz 17 3350.8 659.00 1359 48.49
74 Weiss 2.1 3346.1 316.50 669 47.31
75 Frozenight 6.0.0 3336.3 367.00 652 56.29
76 Zahak 10.0 3331.0 430.50 999 43.09
77 Gogobello 3.0 3327.9 316.50 735 43.06
78 MrBob 1.2.0 3322.4 452.50 723 62.59
79 Nalwald 18 3319.6 551.00 1019 54.07
80 Defenchess 2.3 3311.3 247.50 533 46.44
81 Little Goliath 3.17 3310.7 381.50 989 38.57
82 Odonata 1.0.0 3309.7 243.00 554 43.86
83 Mantissa 3.7.2 3305.0 344.00 626 54.95
84 Kuma 1.2 3298.3 303.50 622 48.79
85 Laser 1.7 3296.7 345.00 688 50.15
86 Combusken 2.0.0 3278.7 370.00 633 58.45
87 Svart 6 3274.8 303.00 720 42.08
88 Deep Shredder 13 3265.9 239.00 578 41.35
89 Andscacs 0.95092 3263.1 279.00 581 48.02
90 Jet 1.2 3260.0 312.00 788 39.59
91 DanaSah 9.1 3255.7 362.00 1031 35.11
92 Demolito 2023-11-04 3246.0 289.50 806 35.92
93 Critter 1.6a 3230.0 4050.50 8954 45.24
94 Flounder 0.5.0.0 3222.5 269.00 501 53.69
95 Roc 2.0.0 3217.4 233.50 547 42.69
96 Nirvanachess 2.5 3216.9 273.00 528 51.70
97 Mittens 0.9 3177.9 328.00 595 55.13
98 Princhess 0.19.0 3175.9 205.00 653 31.39
99 Sting Black Hole 7 3131.7 175.50 570 30.79
100 Wahoo 4.0.0 3130.6 235.00 501 46.91
101 Ippolit 051323 3125.2 256.50 576 44.53
102 Gargantua 1.0 3124.9 420.00 757 55.48
103 Monolith 2 3106.6 322.00 567 56.79
104 Amoeba 3.4 3099.2 305.50 606 50.41
105 GOOB 1.8.9 3087.9 347.50 798 43.55
106 Protej 20230919a 3082.9 196.50 611 32.16
107 4ku 5.1 3079.6 241.00 580 41.55
108 Polaris 1.8.1 3067.0 366.50 727 50.41
109 Lambergar 0.6.0 3061.9 223.00 766 29.11
110 Ice4 v4 3054.8 282.00 548 51.46
111 Mida 2.1 3041.0 139.50 503 27.73
112 Journeyman 2.1 3030.4 326.00 654 49.85
113 Cadie 1.5 3016.0 248.00 507 48.92
114 The Baron 3.45 3009.9 272.00 623 43.66
115 Vengeance 3.1.0 JA 2994.9 141.00 553 25.50
116 Zangdar 2.19.03 2965.1 202.00 525 38.48
117 Smaug 2.2.1 JA 2933.7 178.00 515 34.56
118 Clovis III 2882.7 324.50 818 39.67
119 Delocto 0.61n 2873.2 286.00 515 55.53
120 Rhetoric 1.4.3 2872.0 293.50 603 48.67
121 Knightx 4.2 2870.6 159.50 529 30.15
122 Ivanhoe 66 2867.8 185.50 574 32.32
123 Apotheosis 4.0.1 2856.7 197.50 557 35.46
124 Coiled 1.2 2844.8 136.00 752 18.09
125 CT800 1.46 2838.3 227.50 700 32.50
126 Colossus 2022a 2832.6 346.00 838 41.29
127 MadChess 3.2 beta 2822.9 302.00 727 41.54
128 Blunder 8.0.0 2809.6 112.00 503 22.27
129 Drosophila 1.6 JA 2805.6 238.00 879 27.08
130 Devel 4.0.2.3 2789.3 282.00 625 45.12
131 Lishex 1.1.1 2756.5 194.50 684 28.44
132 Catacomb 1 2708.5 211.50 582 36.34
133 Mayhem 8.5 2708.1 89.50 570 15.70
134 Luna 2.0.0 2690.8 155.00 651 23.81
135 Raven 1.30 2686.6 254.00 667 38.08
136 Hedgehog 2.407 2675.4 107.50 649 16.56
137 Lux 4.0 2675.0 106.00 501 21.16
138 Admete 1.5.0 2641.4 192.00 554 34.66
139 Fornax 4.0 2630.4 290.50 753 38.58
140 FoxSEE 8.2 2617.7 195.50 707 27.65
141 Barbarossa 0.6.0 2605.4 218.50 569 38.40
142 Queen 4.05 2604.6 188.00 546 34.43
143 ShenYu 2.0.1 2601.9 203.00 803 25.28
144 Albatros 1.0.0 2449.2 177.00 534 33.15
145 Axon 0.3 2425.6 151.00 598 25.25
146 Halcyon 1 2408.8 150.00 581 25.82
147 Cdrill 2000 2265.1 174.00 970 17.94
148 Adachess 4.0 2255.8 104.00 778 13.37
149 Freda 0.99 2179.9 66.50 605 10.99
150 Kelp 0.12.0 2113.5 65.50 747 8.77 


Stockfish and derivatives



	
	
	
	
	
	
	

		Stockfish and derivatives Rating CEDR – 01.04.2025
		

	

		generated with Ordo 0.9.9 (anchor Critter 1.6a with 3230)
		

	

		All 625.428 games, Time:3’+3” Minimum 500 games
		

	

		Pl
		Engine
		Rating
		Score
		Games
		(%)
	

	

		1
		Stockfish 20241208
		3766.6
		343.00
		624
		54.97
	

	

		2
		JigSaw 5.9
		3765.0
		1732.00
		2824
		61.33
	

	

		3
		SpecTral PB 071124
		3763.0
		921.00
		1687
		54.59
	

	

		4
		CorChess 20240927
		3762.6
		685.50
		1200
		57.13
	

	

		5
		Killfish 021224
		3762.2
		786.00
		1483
		53.00
	

	

		6
		SF-PRO2 04.12.2024
		3762.0
		341.00
		555
		61.44
	

	

		7
		Polyfish 221009
		3761.9
		315.00
		520
		60.58
	

	

		8
		Sailfish 4.0
		3761.4
		534.00
		1001
		53.35
	

	

		9
		BrainLearn 29
		3761.3
		625.00
		1126
		55.51
	

	

		10
		Dark SisTer 4
		3761.2
		304.00
		503
		60.44
	

	

		11
		Stockfish 20241122 Ivec
		3761.2
		346.50
		592
		58.53
	

	

		12
		HypnoS 160524
		3761.0
		514.50
		936
		54.97
	

	

		13
		Yuliana 5.50
		3760.7
		1852.00
		3267
		56.69
	

	

		14
		Tactical Titan
		3760.0
		1057.00
		2010
		52.59
	

	

		15
		ShashChess 37
		3759.8
		1788.00
		3328
		53.73
	

	

		16
		Kookaburra 3.10
		3759.7
		341.50
		618
		55.26
	

	

		17
		Rems Sep24
		3759.5
		541.00
		917
		59.00
	

	

		18
		Perelandra 2.0
		3759.3
		378.50
		648
		58.41
	

	

		19
		YuliGM 19
		3759.3
		1185.00
		2158
		54.91
	

	

		20
		Deep Blue 20240518
		3759.2
		1407.50
		2689
		52.34
	

	

		21
		Artemis 4TR
		3758.9
		994.00
		1811
		54.89
	

	

		22
		Marauders 3.9
		3758.6
		722.50
		1282
		56.36
	

	

		23
		Raid 3.6 TR
		3758.5
		4136.50
		7711
		53.64
	

	

		24
		TROY 042025
		3758.4
		773.50
		1408
		54.94
	

	

		25
		Contact 12
		3758.3
		489.50
		832
		58.83
	

	

		26
		Steel Fighter III
		3758.1
		770.00
		1300
		59.23
	

	

		27
		Fidelio 17
		3757.6
		640.50
		1156
		55.41
	

	

		28
		Yuliirma 4.0
		3757.4
		2104.50
		3832
		54.92
	

	

		29
		Private19sf
		3757.0
		1661.00
		3011
		55.16
	

	

		30
		Nebula-vortex 1.0
		3756.8
		330.50
		534
		61.89
	

	

		31
		Promenade
		3756.8
		410.00
		770
		53.25
	

	

		32
		MagicKnight
		3756.3
		690.50
		1225
		56.37
	

	

		33
		AbbyStein 1.5
		3755.1
		582.00
		857
		67.91
	

	

		34
		Crystal 8 JA
		3754.9
		606.00
		1065
		56.90
	

	

		35
		Proteus Piranha 220904
		3753.9
		920.50
		1520
		60.56
	

	

		36
		SOLIDOR AI
		3753.7
		493.50
		946
		52.17
	

	

		37
		Cool Iris 14
		3752.9
		652.00
		1178
		55.35
	

	

		38
		Beast 15 MPV
		3752.9
		1050.00
		1776
		59.12
	

	

		39
		RapTora 3.0
		3752.3
		1018.50
		1839
		55.38
	

	

		40
		Patzer AI X-2560
		3750.9
		326.00
		628
		51.91
	

	

		41
		Incognito 5
		3750.6
		895.00
		1581
		56.61
	

	

		42
		AbbyStein 2.8
		3750.5
		1979.00
		3593
		55.08
	

	

		43
		Fisherov chess monk
		3750.3
		494.50
		812
		60.90
	

	

		44
		Sun 15 MPV
		3749.4
		356.00
		646
		55.11
	

	

		45
		Eman 9.90
		3749.2
		641.00
		1091
		58.75
	

	

		46
		Green Way
		3748.7
		385.00
		638
		60.34
	

	

		47
		AI 28.0
		3747.7
		617.50
		1060
		58.25
	

	

		48
		Vanilla 14c
		3747.3
		334.50
		509
		65.72
	

	

		49
		Deep Ripper -1
		3747.0
		323.00
		535
		60.37
	

	

		50
		Leptir 230124
		3746.9
		496.00
		816
		60.78
	

	

		51
		Hazard 4.1
		3746.6
		504.00
		944
		53.39
	

	

		52
		XTD 010723
		3745.3
		651.50
		1336
		48.76
	

	

		53
		Sawfish 1.0
		3744.8
		2649.50
		4474
		59.22
	

	

		54
		Kayra 1.7
		3743.3
		664.00
		1231
		53.94
	

	

		55
		SugaR AI SE
		3741.9
		456.50
		799
		57.13
	

	

		56
		BigBallz 010922
		3739.8
		351.00
		549
		63.93
	

	

		57
		Teal Oracle
		3739.7
		457.50
		823
		55.59
	






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