TCEC S23 Paused; 'CCC19 Blitz Main' Underway

Another fortnight has passed since our previous report on the planet's top-two, ongoing, engine vs. engine competitions: TCEC S23 L1, CCC19 Blitz - Both Underway (September 2022). Here's a summary of that report:-

TCEC: S23 L2 finished with four engines promoting. The 12-engine L1 is in the second of its four round robins. • CCC: Dragon edged Lc0 by three points in the 'CCC18 Rapid Challenger' match. Later the site started a series of 'CCC19 Blitz' events. Between CCC18 and CCC19, the CCC launched an eight-engine 'Chess 324 Bonus' event.

In the two intervening weeks, both sites have progressed. The following is the latest on TCEC S23 and CCC19.

TCEC: S23 L1 finished with Ethereal and Berserk promoting into the Premier Division (DivP). Before DivP starts, the site is running 'S23 - Viewer Submitted Openings Bonus 22', with the terse !next explanation 'VSOB22 until replacement GPU'. For the previous discussion of VSOB on this blog, see Stockfish Wins TCEC DFRC1, Leads CCC18 Rapid Final (August 2022). VSOB appears to be the stand-by filler when the regular schedule of TCEC events is paused.

CCC: In the previous post, 'CCC19 Blitz Underway', I also wrote, 'It's not clear what direction [the CCC] intends to take with the new season, so I'll say no more for this current post.' The site is currently running 'CCC19 Blitz: Main' with 10 engines. This was preceded by three other 'CCC19 Blitz' events: 'Newcomers' (6 engines), 'Qualifier #1' (8), and 'Qualifier #2' (8). 'Where it stops, nobody knows!'.

The site's !next command says, 'Main Event: Stockfish, Leela, Dragon, Ethereal, Slowchess, Berserk, +4 top engines from Qualifier #2.' The CCC's Club and Discord sites are both silent.

[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]