03 April 2023

TCEC S24 DivP Finishing; Stockfish Wins CCC20 Blitz Final

In the previous fortnightly post, TCEC S24 DivP, CCC20 Blitz Final : Both Underway (March 2023), the intrepid sponsors of the chess world's leading engine vs. engine competitions, the TCEC and the CCC, were both conducting important contests. Here's a summary of that post:-

TCEC: With two rounds completed in the eight round Premier Division (DivP), KomodoDragon, LCZero, and Stockfish are significantly ahead of the other five engines. • CCC: Lc0 beat Dragon by 32 points in the 500-game 'Challenger Match', and is currently trailing Stockfish by 16 points after a sixth of the 500-game 'Final Match' has been played.

The TCEC is still running S24 DivP, but the CCC is moving on. Here's the current status of both platforms:-

TCEC: DivP is a few games away from its finish. Stockfish is a point ahead of LCZero, which has a big lead over KomodoDragon. That means Stockfish will meet LCZero in the final match (aka Superfinal, aka Sufi), right? No, wrong.

That's the way TCEC organized its flagship league event through S23; see TCEC S23 Sufi, CCC19 Rapid : Nearing the Finish (November 2022), for the previous season. For this season the organizers have organized the new 'DivP Playoff':-

!divpplayoff • The top 4 of DivP face each other to determine who goes to SuFi 24.

Ethereal is currently in fourth place, a point ahead of Berserk. The two engines are scheduled to meet in one of the last games of DivP, so anything is possible.

CCC: In the previous post, 'S24 DivP, CCC20 Blitz Final', I also calculated,

Lc0 is currently trailing Stockfish by 16 points after a sixth of the 500-game 'Final Match' has been played. This extrapolates to a difference of nearly 100 points when the match will have finished.

The final score was Stockfish over Lc0 by 293.0-207.0, making Stockfish the winner of the 'CCC20 Blitz Final'. The site is currently conducting another OpenBench event...

!now • OpenBench Interlude #8 -- All engines except Laser [Crashing :( ] and 4ku [Too weak :( ]

...then plans...

!next • CCC20 Rapid: Newcomers

In previous posts, I've mentioned OpenBench several times in passing. It's high time I devoted an off-week post to the concept. Maybe next week...

[For further information from the various stakeholders in the engine-to-engine events, see the tab 'TCEC/CCC Links' at the top of this page. • NB: Leela = LC0 = LCzero; Dragon = KomodoDragon]

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