Video : How do modern chess engines work ?

[Dirt]

Spokesperson answered that Stockfish need modern 4-core PC to beat top humans.

I don't think that's what he said. He said a modern 4-core computer was enough to beat a human, but he didn't say it was necessary.

[Henk]

I don't understand worst move observation.

Counter example: If I do many bad moves but my opponent plays one or a few moves which are slightly worse then mine then I have the biggest chance of losing the game.

[yurikvelo]

Ok, more precise question:

what is lowest kn/sec (benchmarked at starting position) for Stockfish-7 to beat any of TOP-5 human in standard WCC Final conditions (either modern 12-game, or "Capablanca London rules" - up to 6 wins)

- no syzygy
- no opening book
- ponder = on
- human can train against frozen code

[Henk]

Ok, more precise question:

what is lowest kn/sec (benchmarked at starting position) for Stockfish-7 to beat any of TOP-5 human in standard WCC Final conditions (either modern 12-game, or "Capablanca London rules" - up to 6 wins)

- no syzygy
- no opening book
- ponder = on
- human can train against frozen code

Don't understand. Is Stockfish-7 based on Worst Move observation ?

[Henk]

Ok, more precise question:

what is lowest kn/sec (benchmarked at starting position) for Stockfish-7 to beat any of TOP-5 human in standard WCC Final conditions (either modern 12-game, or "Capablanca London rules" - up to 6 wins)

- no syzygy
- no opening book
- ponder = on
- human can train against frozen code

If there is 300 ELO difference and doubling speed means 60 ELO then Power(2, 5) = 32

So (current speed Stockfish7) / 32

[yurikvelo]

If there is 300 ELO difference and doubling speed means 60 ELO then Power(2, 5) = 32

So (current speed Stockfish7) / 32

At what hardware is 300 elo difference?

Engine ratings are hardware-independent, it is software difference on the same hardware. It is not calibrated against human ratings.

[hgm]

A 166MHz Pentium 2?