Chess324 Top 15 Round-Robin - several new engines added

[Graham Banks]

Stockfish 19 RC added to this Chess324 Top 15 round-robin. An improvement of +27 Elo under these conditions.

https://e4e6.com/324/

Is that a developmental version?

[Modern Times]

It is the Stockfish 19 release candidate which has a code freeze. Provided there are no issues discovered, it will be released unchanged (apart from the name string) as the official Stockfish 19. I'll re-run the actual release if there are any changes.

[Modern Times]

It looks like a couple of small code fixes have been necessary on the release candidate. I'll re-run it anyway once it is released officially. it only takes two days for an engine run.

https://github.com/official-stockfish/S ... /pull/7106

[Modern Times]

Just to note that I did run the official Stockfish 19 release as soon as it was released and this replaced the release candidate. I don't think there were any functional changes, but I was committed to doing it anyway.

[Modern Times]

Integral storms back into this Chess324 Top 15 round-robin with Integral v8 at 7th place

https://e4e6.com/324/

[Modern Times]

Caissa 2.0 replaces v1.26 in this Chess324 Top15 round-robin. It jumps from 15th place to 11th place thanks to an approx. +36 Elo gain under these conditions,

https://e4e6.com/324/

[Modern Times]

Alexandria 9.1 replaces v 9.0 in this Chess324 Top15 round-robin. It moves from 14th place to 10th place thanks to an approx +22 Elo improvement under these conditions

https://e4e6.com/324/

(This is Top 15 free engines plus Torch becuase many find that an interesting benchmark. So that is 16 engines, however it is 17 currently because the bottom two engines are within error margins, tied in fact)