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Actually stockfish crushed leela in recent TCEC. It seems that the new neural network of stockfish had a huge effect on the performances. Something like a 130 E

Actually stockfish crushed leela in recent TCEC. It seems that the new neural network of stockfish had a huge effect on the performances. Something like a 130 ELO improvement.

strenholme 6y ago
I can not find a recent tournament where Stockfish has crushed Leela in head-to-head play. This is their most recent ongoing head-to-head: https://www.chess.com/events/2021-tcec-20-superfinal https://www.chess.com/events/2021-tcec-20-superfinal Current result: 9 draws, one win with Stockfish as White, and one win with Leela as White. Drawn. There is also this one from a couple of years ago: https://www.chess.com/news/view/computer-chess-championship-9-stockfish-lc0 https://www.chess.com/news/view/computer-chess-championship-... “Lc0 defeated Stockfish in their head-to-head match, four wins to three”. Stockfish did got more wins against the other computers, so won the round-robin, but in head-to-head games Leela was ahead of Stockfish.
- testcross 6y ago
  https://en.wikipedia.org/wiki/TCEC_Season_19 https://en.wikipedia.org/wiki/TCEC_Season_19 stockfish finished +9 over 100 games. I don't have any stock in those 2 engines, so I don't care which one is better than the other. At the end as a poor chess player it won't change anything :) It's actually interesting to compare how those two software are evolving and how they got here. Stockfish is much older. And it took it a lot of hand tuning to reach its current level. It is (or was) full of carefully tested heuristic to give a direction to the computation. It would be very difficult to build an engine like stockfish in a short span. Leela got there very very quickly. Even if it was not able to win in October, the fact that it got competitive and forced the field to adopt drastic changes in such a short period of time is impressive. It seems to be a good example of how sometimes no using the "best" solution could still be a win. Getting good results after a few months against something that required 10 years of work.
  - strenholme 6y ago
    Thank you for getting back to me with a source. I agree Stockfish had a significant edge over Leela in that contest from a year ago. Right now, Stockfish is winning in the current TETC, but only by one point (one more win than Leela). https://www.chess.com/events/2021-tcec-20-superfinal https://www.chess.com/events/2021-tcec-20-superfinal Stockfish 12 27.5 - Leela 26.5

Actually stockfish crushed leela in recent TCEC. It seems that the new neural network of stockfish had a huge effect on the performances. Something like a 130 ELO improvement.

strenholme 6y ago

I can not find a recent tournament where Stockfish has crushed Leela in head-to-head play. This is their most recent ongoing head-to-head: https://www.chess.com/events/2021-tcec-20-superfinal https://www.chess.com/events/2021-tcec-20-superfinal Current result: 9 draws, one win with Stockfish as White, and one win with Leela as White. Drawn. There is also this one from a couple of years ago: https://www.chess.com/news/view/computer-chess-championship-9-stockfish-lc0 https://www.chess.com/news/view/computer-chess-championship-... “Lc0 defeated Stockfish in their head-to-head match, four wins to three”. Stockfish did got more wins against the other computers, so won the round-robin, but in head-to-head games Leela was ahead of Stockfish.

testcross 6y ago
https://en.wikipedia.org/wiki/TCEC_Season_19 https://en.wikipedia.org/wiki/TCEC_Season_19 stockfish finished +9 over 100 games. I don't have any stock in those 2 engines, so I don't care which one is better than the other. At the end as a poor chess player it won't change anything :) It's actually interesting to compare how those two software are evolving and how they got here. Stockfish is much older. And it took it a lot of hand tuning to reach its current level. It is (or was) full of carefully tested heuristic to give a direction to the computation. It would be very difficult to build an engine like stockfish in a short span. Leela got there very very quickly. Even if it was not able to win in October, the fact that it got competitive and forced the field to adopt drastic changes in such a short period of time is impressive. It seems to be a good example of how sometimes no using the "best" solution could still be a win. Getting good results after a few months against something that required 10 years of work.
- strenholme 6y ago
  Thank you for getting back to me with a source. I agree Stockfish had a significant edge over Leela in that contest from a year ago. Right now, Stockfish is winning in the current TETC, but only by one point (one more win than Leela). https://www.chess.com/events/2021-tcec-20-superfinal https://www.chess.com/events/2021-tcec-20-superfinal Stockfish 12 27.5 - Leela 26.5