TCEC S19 DivP Chugging Along; CCC15 Halted

In our fortnightly look at the two top engine vs. engine competitions, this post might turn out to be one of the shortest in the series. First let's summarize the situation from two weeks ago, as reported in TCEC S19 DivP Started; CCC15 in Brackets (August 2020):-

TCEC: Fire and ScorpioNN qualified from League 1 (L1) into the Premier Division (DivP), which will run for almost three weeks. The top two engines will qualify into the final match. • CCC: CCC15 uses a straightforward bracket structure starting with a preliminary round-robin equivalent to 12-game mini-matches. Stockfish won the preliminary event ('Round 1') by a significant margin. The 'Round 2' matches are underway.

Now let's skip ahead to today's post and review the current situation.

TCEC: DivP has reached the fifth of eight all-play-all rounds. Stockfish and LCZero have the same score, giving them a comfortable lead over the next group of engines. The schedule seems to have slipped since my previous report, but the event should finish before the next report in two weeks.

CCC: Because of technical problems, the CCC15 'Round 2' matches were halted about half way through. The explanation is:-

!next • CCC's GPU server is out of service. It went offline after reporting a host of issues: GPU fan issues, CPU VCC issues, bad DIMM, temperature issues with the CPU and GPU. [...] We don't know details of when it will be back in service.

The site is currently running a series of CPU-only exhibition events.

[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]