CCC 6: The Winter Classic (preview)

Winter propels fish to move under water and chess players to move online!? Stockfish has been taking a deep dive this winter and chess fans are circling around to watch.

In the most recent CCC event, Battle of the Leelas, Stockfish finished in 4th place(?!) behind a new wave of Neural Net (NN) chess programs, all built upon Lc0. This freshly coded batch of Lc0 spin-offs, each with provocative names like Leelenstein and Antifish, are taking over computer chess and in the lead is Antifish, a modified version of Lc0 crafted by a college freshman, and trained specifically to beat Stockfish.

CCC 6 is the premier of three new engines: Allie, Schooner and Rofchade.

Format of CCC 6: The Winter Classic

Qualifiers

• 16 engines
• top 8 qualify to playoffs
• Stockfish, Lc0, Komodo & Houdini get automatic buy to Playoffs
• escalation pairings
• 3 rounds (each pair plays one another 6 times)
• no book
• time control: 5' + 2"

Playoffs

• 12 engines (top 8 qualifies plus Stockfish, Lc0, Komodo & Houdini)
• two 2 qualify to finals
• 3 rounds
• short opening book
• time control: 10' + 10"

Finals

• 2 engines
• first engine to lead by 6 games, after game 40, is the CCC 6 champion
• max 200 games
• short opening book
• time control: 10' + 10"

Participants

Antifish (net AntiFish_1.0_Mark_289_20500_Steps.pb)
Leelenstien (net 20x256SE-jj-4-swa-1860000.pb)
Lc0 dev (latest T40)
Ethereal (90 threads, 16 GB)
Fire (64 threads, 16 GB)
Fizbo 2 (56 threads, 16 GB)
Andscacs (90 threads, 16 GB)
Laser (90 threads, 16 GB)
Xiphos (90 threads, 16 GB)
Arasan (90 threads, 16 GB)
Shredder (90 threads, 16 GB)
Komodo MC 2273 (46 threads)
Schooner (32 threads)
Rofchade 2.011C (90 threads, 16 GB)
Texel 1.08a13 (90 threads, 16 GB)
Allie 0.1 (Lc0 net 11248)

PGN's, Links & Our moderators rock!

DOWNLOAD PGNs
CCC 6 qualifiers: https://cccfiles.chess.com/archive/tournament-18531.pgn

Battle of the Leelas: https://cccfiles.chess.com/archive/tournament-18342.pgn

Links

Watch and chat at www.chess.com/ccc

Watch and chat on www.twitch.tv/computerchess (includes AI-generated background music)

Our moderators rock!

Huge thanks to our team of moderators who keep the event running by answering questions and banning people: the_real_greco, khagrin2, qg3twoexclamationmarks, daviecar, navratil25, lordjavaxx, coolchess123, gd_barnes, gary_internet