Rank Name Elo + - games score oppo. draws 1 Stockfish 3765 26 26 257 63% 3676 53% 2 LCZero 3716 25 25 269 53% 3690 53% 3 Obsidian 3690 34 34 142 56% 3652 59% 4 Integral 3680 26 26 248 61% 3605 61% 5 PlentyChess 3668 25 25 252 58% 3611 60% 6 Berserk 3664 34 34 141 50% 3664 63% 7 Reckless 3654 34 34 138 60% 3587 60% 8 Caissa 3647 39 39 106 54% 3617 65% 9 Stormphrax 3643 32 32 156 57% 3598 63% 10 KomodoDragon 3640 39 39 105 48% 3656 61% 11 Ceres 3639 42 42 94 55% 3601 62% 12 Torch 3631 61 61 51 71% 3470 59% 13 Halogen 3631 55 55 54 67% 3517 59% 14 Ethereal 3621 39 39 109 45% 3653 56% 15 Stockfish_15_300M 3613 12 12 1112 56% 3575 70% 16 Pawnocchio 3608 51 51 66 61% 3535 52% 17 RubiChess 3605 42 42 92 52% 3593 55% 18 Ginkgo 3604 38 38 117 54% 3572 54% 19 Booot 3599 36 36 122 55% 3564 63% 20 Seer 3595 42 42 90 50% 3595 58% 21 Stockfish_15_1G 3589 45 45 83 42% 3647 54% 22 Viridithas 3587 40 40 102 48% 3598 61% 23 Horsie 3585 37 37 125 54% 3552 49% 24 Uralochka 3581 43 43 90 51% 3572 56% 25 Starzix 3579 38 38 108 51% 3572 63% 26 Stockfish_15_100M 3571 7 7 3185 54% 3544 68% 27 rofChade 3570 44 44 84 45% 3607 58% 28 Clover 3569 37 37 122 57% 3523 57% 29 Quanticade 3565 51 51 70 64% 3457 49% 30 Stoofvlees 3546 43 43 86 42% 3596 59% 31 Revenge 3530 46 46 75 41% 3588 59% 32 Cinder 3527 55 55 54 52% 3517 56% 33 StockfishClassical 3526 69 69 34 53% 3506 59% 34 BlackMarlin 3524 48 48 72 49% 3528 51% 35 Igel 3522 43 43 86 42% 3571 62% 36 Stockfish_13_CCRL 3522 9 9 2048 51% 3517 69% 37 Velvet 3521 45 45 84 44% 3564 55% 38 Stockfish_15_30M_4th 3517 6 6 5120 51% 3508 69% 39 Renegade 3510 37 37 116 48% 3522 57% 40 Arasan 3510 35 35 136 45% 3543 58% 41 Heimdall 3505 53 53 60 52% 3493 50% 42 Stockfish_15_30M 3498 7 7 3176 49% 3506 66% 43 Tarnished 3495 50 50 64 47% 3521 59% 44 Texel 3481 85 85 22 48% 3492 59% 45 Altair 3461 53 53 60 47% 3484 50% 46 Monty 3455 60 60 57 60% 3345 32% 47 LCZeroCPU 3451 62 62 46 47% 3473 54% 48 Tucano 3451 40 40 104 46% 3474 52% 49 DeepSjeng 3447 48 48 72 44% 3490 57% 50 ScorpioNN 3446 52 52 62 43% 3488 53% 51 Minic 3445 43 43 96 50% 3444 50% 52 Winter 3442 66 66 42 56% 3395 40% 53 Sirius 3434 40 40 108 49% 3438 50% 54 Serendipity 3427 57 57 52 35% 3524 50% 55 Stockfish_15_10M 3426 7 7 3142 46% 3456 63% 56 Wasp 3418 62 62 42 36% 3513 52% 57 Stash 3417 55 55 56 39% 3489 50% 58 Patricia 3412 44 44 94 47% 3428 44% 59 Weiss 3407 84 84 24 48% 3417 46% 60 Stockfish_15_3M 3349 9 9 2086 51% 3341 59% 61 Lynx 3293 52 52 64 42% 3347 50% 62 ice4 3287 39 39 138 62% 3085 45% 63 Bagatur 3286 70 70 42 24% 3471 43% 64 Stockfish_15_1M 3253 9 9 2086 52% 3241 56% 65 c4ke 3252 38 38 144 58% 3087 47% 66 ChessFighter 3238 50 50 76 39% 3326 46% 67 Princhess 3221 52 52 70 34% 3338 44% 68 Stockfish_15_300k 3129 9 9 2076 52% 3113 49% 69 4ku 3129 73 73 50 68% 2750 24% 70 Cheese 3098 89 89 30 22% 3331 30% 71 LESS_STRO4K 3076 54 54 72 63% 3004 39% 72 STRO4K 3064 60 60 76 47% 2949 25% 73 Stockfish_15_100k 2969 10 10 2070 54% 2939 39% 74 4k.c 2848 50 50 105 31% 2912 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 2449 176 176 50 18% 2840 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% 2806 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: 2025-12-20T03:53:17 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