Computer Chess
Choose your opponent
This site allows you to play against 641 different chess engine opponents in your browser.
All engines are open-source engines taken from the CCRL (Computer Chess Rating List).
641 engine opponents
151 unique engines
0 games in progress
Showing strongest versions of engines, sorted by rating.
Strongest versions · Sort by release date · Complete list · Complete list by date · Engines rated below 2000
| Rank | Name | Rating | Release date |
|---|---|---|---|
| #1 | Stockfish 17.1 64-bit 8CPU | 3817 | 2024-03-30 |
| #2 | Obsidian 14.0 64-bit 8CPU | 3788 | 2024-10-22 |
| #3 | Berserk 13 64-bit 8CPU | 3785 | 2024-03-31 |
| #4 | Alexandria 7.1.0 64-bit 8CPU | 3779 | 2024-10-26 |
| #5 | Caissa 1.21 64-bit 8CPU | 3772 | 2024-10-27 |
| #6 | PlentyChess 2.1.0 64-bit 8CPU | 3770 | 2024-07-02 |
| #7 | Lizard 11.2 64-bit 8CPU | 3769 | 2025-01-08 |
| #9 | Starzix 6.0 64-bit 8CPU | 3764 | 2024-10-24 |
| #10 | RubiChess 20240817 64-bit 8CPU | 3763 | 2024-08-17 |
| #11 | Viridithas 15.0.0 64-bit 8CPU | 3756 | 2024-10-13 |
| #12 | Clover 8.0 64-bit 8CPU | 3754 | 2024-09-02 |
| #13 | Stormphrax 6.0.0 64-bit 8CPU | 3744 | 2024-10-29 |
| #14 | Velvet 8.1.0 64-bit 8CPU | 3741 | 2024-10-28 |
| #16 | Igel 3.6.0 64-bit 8CPU | 3737 | 2024-12-28 |
| #18 | Seer 2.8.0 64-bit 8CPU | 3731 | 2023-12-31 |
| #21 | Koivisto 9.0 64-bit 8CPU | 3716 | 2023-01-15 |
| #22 | Peacekeeper 3.01 64-bit 8CPU | 3706 | 2024-06-14 |
| #26 | Altair 7.0.0 64-bit 8CPU | 3670 | 2024-02-17 |
| #27 | Black Marlin 9.0 64-bit 8CPU | 3659 | 2024-02-28 |
| #28 | akimbo 1.0.0 64-bit 8CPU | 3649 | 2022-11-21 |
| #30 | Quanticade Chimera 1.2 64-bit | 3623 | 2025-01-06 |
| #32 | Smallbrain 7.0 64-bit 8CPU | 3605 | 2023-01-29 |
| #34-35 | Equisetum 1.0 64-bit | 3578 | 2024-03-15 |
| #37 | Ethereal 12.75 64-bit 8CPU | 3573 | 2020-10-09 |
| #40 | Renegade 1.1.0 64-bit | 3562 | 2024-06-26 |
| #40 | Quanticade Electra 0.9 64-bit | 3557 | 2024-10-26 |
| #41-42 | Halogen 12 64-bit | 3543 | 2022-10-25 |
| #41-42 | Willow 4.0 64-bit | 3543 | 2024-02-04 |
| #43 | Rice 8.0.0 64-bit | 3542 | 2024-03-18 |
| #44-45 | Carp 3.0.1 64-bit | 3538 | 2023-09-24 |
| #44-45 | pawn 3.0 64-bit | 3538 | 2024-01-12 |
| #46 | Superultra 2.0 64-bit | 3537 | 2024-02-02 |
| #48 | Reckless 0.7.0 64-bit | 3503 | 2024-08-23 |
| #50 | Winter 4.0 64-bit | 3494 | 2024-06-29 |
| #51 | Xiphos 0.6 64-bit 8CPU | 3491 | 2019-11-07 |
| #52 | Midnight 9 64-bit | 3489 | 2024-01-21 |
| #54 | Marvin 6.3.0 64-bit | 3470 | 2024-05-25 |
| #55-56 | Quanticade Aurora 0.8 64-bit | 3468 | 2024-08-23 |
| #55-56 | Zahak 10.0 64-bit 8CPU | 3468 | 2022-05-08 |
| #58 | Combusken 2.0.0 64-bit 8CPU | 3466 | 2022-01-15 |
| #58 | Devre 4.0 64-bit | 3463 | 2022-08-23 |
| #60 | BlackCore 6.0 64-bit | 3455 | 2023-03-02 |
| #61 | Weiss 2.0 64-bit 8CPU | 3454 | 2021-08-04 |
| #61 | Clarity 4.0.0 64-bit | 3453 | 2023-12-31 |
| #62 | Molybdenum 4.1 64-bit | 3448 | 2024-11-05 |
| #62 | Laser 1.7 64-bit 8CPU | 3445 | 2019-02-07 |
| #66 | Pedantic 2.1.0 64-bit | 3418 | 2024-09-30 |
| #69 | Avalanche 2.1.0 64-bit | 3405 | 2023-09-24 |
| #72 | Defenchess 2.2 64-bit 4CPU | 3386 | 2019-08-23 |
| #73 | Counter 5.5 64-bit | 3381 | 2024-01-12 |
| #75 | Frozenight 6.0.0 64-bit | 3377 | 2023-01-19 |
| #78 | Nalwald 19 64-bit | 3356 | 2024-07-11 |
| #78 | Zangdar 2.31 64-bit | 3335 | 2024-11-15 |
| #80 | Odonata 1.0 64-bit | 3325 | 2024-07-22 |
| #85-86 | Princhess 0.19.0 64-bit | 3300 | 2024-09-29 |
| #88 | Leorik 3.0 64-bit | 3282 | 2024-02-05 |
| #88 | RukChess 3.0.15 64-bit | 3274 | 2022-09-06 |
| #89 | Svart 6 64-bit | 3269 | 2023-08-25 |
| #89 | Minic 3.06 64-bit | 3264 | 2021-05-02 |
| #89 | Drofa 4.0.0 64-bit | 3246 | 2023-05-25 |
| #91 | Vajolet2 2.8 64-bit 4CPU | 3244 | 2019-11-01 |
| #93 | Cadie 2.0 64-bit | 3223 | 2024-10-28 |
| #96 | Lambergar 1.0 64-bit | 3213 | 2025-01-14 |
| #99 | Arcanum 2.4 64-bit | 3201 | 2024-11-30 |
| #101 | Priessnitz 2.0 64-bit | 3194 | 2024-11-03 |
| #102 | Jet 1.2 64-bit | 3167 | 2024-03-22 |
| #102 | Toga III 0.2 64-bit | 3165 | 2021-01-10 |
| #105-106 | Lynx 1.8.0 64-bit | 3156 | 2024-12-20 |
| #105-106 | Mr Bob 1.1.0 64-bit | 3145 | 2021-11-30 |
| #105-106 | Mantissa 3.3.0 64-bit | 3144 | 2022-01-10 |
| #108 | Monolith 2 64-bit 4CPU | 3142 | 2018-11-06 |
| #108 | Patricia 2.0 64-bit | 3139 | 2024-04-03 |
| #109 | Amoeba 3.1 64-bit 4CPU | 3126 | 2020-01-16 |
| #110 | Illumina 2.0 64-bit | 3122 | 2024-11-24 |
| #111 | FabChess 1.15 64-bit 4CPU | 3119 | 2020-05-22 |
| #112 | MIDA 2.3 64-bit | 3117 | 2023-12-14 |
| #113 | bitbit 1.2 64-bit | 3104 | 2024-04-29 |
| #114 | Bit-Genie 9 64-bit | 3098 | 2021-08-21 |
| #115 | Wahoo 4.0.0 64-bit | 3096 | 2023-08-31 |
| #116 | Simbelmyne 1.9.0 64-bit | 3091 | 2024-07-08 |
| #121 | monty 1.0.0 64-bit | 3070 | 2024-05-28 |
| #124-125 | Polaris 1.8.1 64-bit | 3053 | 2023-06-25 |
| #129 | Inanis 1.5.0 64-bit | 3001 | 2024-11-01 |
| #132 | Pingu 4.0.0 64-bit | 2991 | 2024-08-11 |
| #133 | Puffin 5.0 64-bit | 2988 | 2024-11-25 |
| #135 | Seawall 20240926 64-bit | 2954 | 2024-09-26 |
| #137 | Jackal 1.0.0 64-bit | 2948 | 2024-12-04 |
| #148 | Weiawaga 5.0 64-bit | 2877 | 2022-04-23 |
| #150 | Dumb 2.1 64-bit | 2826 | 2024-04-13 |
| #153 | Belette 3.0.0 64-bit | 2811 | 2024-03-28 |
| #156-157 | Yakka 1.1 64-bit | 2793 | 2024-09-16 |
| #158 | Mess 0.3.0 64-bit | 2779 | 2023-05-31 |
| #159 | Javelin 3.0.0 64-bit | 2774 | 2024-07-16 |
| #163-164 | Aramis 1.4.0 64-bit | 2759 | 2024-09-02 |
| #165 | K2 0.99 | 2754 | 2021-01-01 |
| #178-179 | Lux 4.2 64-bit | 2688 | 2024-04-04 |
| #180 | Bread 1.2.0 64-bit | 2685 | 2025-01-04 |
| #181 | Supernova 2.4 64-bit | 2679 | 2021-09-14 |
| #182 | Blunder 8.0.0 64-bit | 2651 | 2022-06-30 |
| #189 | Euwe 2.0.0 64-bit | 2638 | 2024-12-07 |
| #190-191 | WyldChess 1.51 64-bit | 2605 | 2017-07-03 |
| #199 | Raven 1.30 64-bit | 2561 | 2023-01-09 |
| #200 | Luna 2.0.0 64-bit | 2557 | 2023-09-24 |
| #208 | Fatalii 0.8.0 64-bit | 2507 | 2024-10-17 |
| #215 | FoxSEE 8.2 64-bit | 2475 | 2022-07-15 |
| #219 | Cosette 5.1 64-bit | 2440 | 2021-06-07 |
| #221 | MinimalChess 0.6 64-bit | 2436 | 2021-08-29 |
| #222-223 | Anka 0.6.3 64-bit | 2424 | 2021-12-07 |
| #222-223 | Loki 3.0.0 64-bit | 2424 | 2021-04-13 |
| #224-225 | Kimbo 1.0.0 64-bit | 2423 | 2022-11-21 |
| #230 | SoFCheck 0.9 beta 64-bit | 2381 | 2022-02-06 |
| #234 | Teki 1 64-bit | 2363 | 2018-03-08 |
| #235 | Oxidation 0.7.1 64-bit | 2357 | 2024-05-07 |
| #252 | Kingfisher 1.0 64-bit | 2236 | 2018-10-24 |
| #253 | GOOB 1.0.0 64-bit | 2229 | 2022-05-04 |
| #254 | Stellar 1.3.0 64-bit | 2215 | 2024-03-11 |
| #255 | Napoleon 1.8 64-bit | 2204 | 2017-06-28 |
| #256 | Camel 1.6.0 64-bit | 2198 | 2024-06-08 |
| #257 | MORA 1.1.0 64-bit | 2189 | 2019-11-17 |
| #263 | Zagreus 5.0 64-bit | 2168 | 2024-03-18 |
| #266-267 | Shuffle 5.2.0 64-bit | 2164 | 2024-02-03 |
| #266-267 | chessplusplus 1.2.0 64-bit | 2164 | 2023-11-02 |
| #270-271 | KhepriChess 4.0.0 64-bit | 2144 | 2023-06-01 |
| #274 | Horowitz 2.2.0 64-bit | 2113 | 2022-06-03 |
| #275 | Trinket 3.0.0 64-bit | 2107 | 2022-10-05 |
| #279-280 | Halcyon 1 64-bit | 2099 | 2023-07-25 |
| #285 | Infrared 2.0.1 64-bit | 2077 | 2022-09-19 |
| #286 | Eggnog 5 64-bit | 2074 | 2022-10-18 |
| #294 | BBC 1.1 64-bit | 2019 | 2020-09-29 |
| #306 | Captain 4.0 64-bit | 1960 | 2023-03-12 |
| #307 | Cadabra 2.0.0 64-bit | 1959 | 2023-06-07 |
| #326 | Thrawn 1.1 64-bit | 1894 | 2023-12-28 |
| #330 | Snowy 0.2 64-bit | 1879 | 2018-01-12 |
| #331-333 | Lunarr 2.0.1 64-bit | 1878 | 2024-01-17 |
| #335 | Freda 0.99 64-bit | 1863 | 2023-09-15 |
| #337 | Amelia 0.15 64-bit | 1859 | 2024-10-06 |
| #344 | Neuromancer 1.5 64-bit | 1827 | 2024-09-20 |
| #349 | Rustic Alpha 3.0.0 64-bit | 1794 | 2023-03-28 |
| #351 | Tofiks 1.3.0 64-bit | 1788 | 2023-10-22 |
| #358 | Leandor 1.2 64-bit | 1735 | 2022-02-17 |
| #369 | Apollo 1.2.1 64-bit | 1669 | 2018-06-09 |
| #370 | Chers 0.8.0 64-bit | 1663 | 2023-11-08 |
| #375 | Lumac0 14.0 64-bit | 1593 | 2022-09-06 |
| #378 | Shallow Blue 2.0.0 64-bit | 1575 | 2019-01-16 |
| #386 | FracTal 1.0 64-bit | 1511 | 2020-06-19 |
| #388 | Magog 1.0 64-bit | 1495 | 2024-06-26 |
| #405 | DoctorB 1.2.1 64-bit | 1328 | 2021-06-10 |
| #411 | Radiance 3.4 64-bit | 1306 | 2024-12-25 |
| #434 | Mufasa 0.2.1 64-bit | 1098 | 2024-07-31 |
| #438 | Catto 0.12.6 64-bit | 1016 | 2024-07-28 |
| #448 | Delimiter 0.1.1 64-bit | 688 | 2021-06-13 |
Limitations:
Engines have been tested but reliability cannot be guaranteed · maximum 5 seconds computer move time · 32MB hash table · pawns auto-promote to queens.