Rank Name Elo + - games score oppo. draws 1 Stockfish 3764 25 25 267 63% 3673 53% 2 LCZero 3715 25 25 279 54% 3688 53% 3 Obsidian 3692 33 33 152 56% 3651 59% 4 Integral 3677 25 25 258 61% 3605 62% 5 PlentyChess 3664 25 25 262 58% 3608 61% 6 Berserk 3658 33 33 151 50% 3660 64% 7 Reckless 3656 33 33 148 59% 3591 61% 8 Caissa 3646 37 37 116 54% 3615 66% 9 Ceres 3642 40 40 104 55% 3608 60% 10 KomodoDragon 3640 37 37 115 49% 3648 61% 11 Stormphrax 3639 31 31 166 56% 3598 64% 12 Torch 3639 55 55 61 68% 3497 61% 13 Halogen 3617 50 50 64 64% 3521 59% 14 Stockfish_15_300M 3613 12 12 1112 56% 3575 70% 15 RubiChess 3611 40 40 102 53% 3590 53% 16 Pawnocchio 3611 48 48 76 60% 3542 51% 17 Ethereal 3605 37 37 120 45% 3643 58% 18 Ginkgo 3600 36 36 127 54% 3573 54% 19 Viridithas 3592 38 38 110 50% 3594 61% 20 Seer 3592 41 41 98 50% 3592 57% 21 Booot 3589 35 35 132 55% 3559 62% 22 Stockfish_15_1G 3588 45 45 83 42% 3647 54% 23 Quanticade 3577 48 48 80 63% 3481 50% 24 Horsie 3576 36 36 135 53% 3549 49% 25 Starzix 3576 38 38 108 51% 3569 63% 26 rofChade 3575 42 42 94 46% 3601 59% 27 Uralochka 3575 41 41 100 51% 3568 54% 28 Clover 3572 35 35 132 56% 3529 58% 29 Stockfish_15_100M 3571 7 7 3185 54% 3544 68% 30 Stoofvlees 3543 41 41 96 44% 3581 57% 31 Cinder 3533 55 55 54 52% 3523 56% 32 Revenge 3529 46 46 75 41% 3588 59% 33 Stockfish_13_CCRL 3522 9 9 2048 51% 3517 69% 34 StockfishClassical 3522 69 69 34 53% 3502 59% 35 Igel 3521 41 41 94 44% 3562 62% 36 Velvet 3519 42 42 94 45% 3558 53% 37 Stockfish_15_30M_4th 3517 6 6 5120 51% 3508 69% 38 BlackMarlin 3512 45 45 82 49% 3520 54% 39 Heimdall 3509 49 49 70 51% 3499 49% 40 Arasan 3507 33 33 146 45% 3539 58% 41 Renegade 3502 36 36 128 48% 3514 57% 42 Stockfish_15_30M 3498 7 7 3176 49% 3506 66% 43 Tarnished 3491 47 47 74 47% 3518 58% 44 Texel 3478 85 85 22 48% 3490 59% 45 Monty 3468 54 54 68 57% 3380 35% 46 Altair 3458 53 53 60 47% 3481 50% 47 LCZeroCPU 3448 62 62 46 47% 3470 54% 48 Tucano 3447 40 40 104 46% 3471 52% 49 Minic 3442 41 41 104 50% 3444 51% 50 ScorpioNN 3442 52 52 62 43% 3484 53% 51 DeepSjeng 3441 45 45 82 46% 3471 55% 52 Winter 3435 58 58 54 55% 3397 43% 53 Serendipity 3433 57 57 52 35% 3530 50% 54 Sirius 3432 39 39 116 50% 3433 49% 55 Stockfish_15_10M 3426 7 7 3142 46% 3456 63% 56 Wasp 3415 62 62 42 36% 3510 52% 57 Stash 3414 55 55 56 39% 3486 50% 58 Patricia 3409 41 41 104 48% 3421 44% 59 Weiss 3404 84 84 24 48% 3414 46% 60 Stockfish_15_3M 3349 9 9 2086 51% 3342 59% 61 Lynx 3301 49 49 72 43% 3349 50% 62 Bagatur 3283 70 70 42 24% 3468 43% 63 ice4 3281 37 37 148 60% 3105 45% 64 Stockfish_15_1M 3253 9 9 2086 52% 3242 56% 65 c4ke 3247 37 37 154 56% 3101 47% 66 ChessFighter 3244 47 47 86 38% 3333 47% 67 Princhess 3228 48 48 80 33% 3351 45% 68 Stockfish_15_300k 3130 9 9 2076 52% 3113 49% 69 4ku 3125 73 73 50 68% 2747 24% 70 Cheese 3099 89 89 30 22% 3332 30% 71 LESS_STRO4K 3075 54 54 72 63% 3003 39% 72 STRO4K 3062 60 60 76 47% 2947 25% 73 Stockfish_15_100k 2969 10 10 2070 54% 2939 39% 74 4k.c 2847 50 50 105 31% 2910 24% 75 Stockfish_15_30k 2742 10 10 2058 51% 2733 29% 76 Stockfish_15_10k 2492 12 12 2057 55% 2433 18% 77 molly 2447 176 176 50 18% 2837 0% 78 Stockfish_15_3k 2121 15 15 2052 50% 2109 9% 79 Stockfish_15_1k 1726 21 21 1031 7% 2117 7% 80 pygone 1546 173 173 59 2% 2803 0% Note that all CCRL engines use 4 threads and 1GiB hash. Other engines usually use 512 threads and 256GiB hash. Parameters advantage and drawelo are calculated automatically from the same games before rating calculation. Time now: 2025-12-29T20:06:22 UTC Events included: TCEC offline rating calibration TCEC Season 28 - Swiss 8 TCEC Season 28 - Cup 15 Testing TCEC Cup 15 Round32 TCEC Cup 15 Round16 TCEC Cup 15 Quarterfinal TCEC Cup 15 Semifinal TCEC Cup 15 Bronze TCEC Cup 15 Final TCEC Season 28 - EL Testing TCEC Season 28 - Entrance League TCEC Season 28 - Entrance League Tiebreak 1 TCEC Season 28 - Entrance League Tiebreak 2 TCEC Season 28 - LCZeroCPU Testing TCEC Season 28 - SFclass and LCZcpu vs S28EL Gauntlet Bonus TCEC Season 28 - L2 Testing TCEC Season 28 - League 2 TCEC Season 28 - L1 Testing TCEC Season 28 - League 1 TCEC Season 28 - DivP Testing TCEC Season 28 - Division P TCEC Season 28 - Sufi Testing TCEC Season 28 - Superfinal TCEC Season 29 - 4K Testing TCEC Season 29 - 4K VI TCEC Season 29 - 4K MiniFinal Testing TCEC Season 29 - 4K VI MiniFinal TCEC Season 29 - 4K ELF II TCEC Season 29 - Playoff and Swiss 9 Testing 1 TCEC Season 29 - Playoff and Swiss 9 Testing 2 TCEC Season 29 - Category 3 Playoff TCEC Season 29 - Category 2 Playoff Testing TCEC Season 29 - Category 2 Playoff TCEC Season 29 - Category 1 Playoff Testing TCEC Season 29 - Category 1 Playoff TCEC Season 29 - Swiss 9 Testing TCEC Season 29 - Swiss 9 bayeselo input: readpgn all/TCEC_Season_24_Calibration.pgn readpgn players/Stripped_TCEC_Season_28.pgn readpgn players/TCEC_Season_29.pgn elo advantage 98.9011 drawelo 250.999 mm scale 0.6229378936520471 offset 3522 Stockfish_13_CCRL ratings