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Removal of SlowMover Option #4917

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@FauziAkram FauziAkram commented Dec 12, 2023

Removing the SlowMover for simplicity.

The SlowMover option allows users to modify the timeLeft variant, impacting the engine's time management. However, this feature, while theoretically flexible, doesn't offer substantial benefits. Instead, it introduces the risk of non-experienced users altering values without a clear understanding of the effects, potentially leading to a weaker engine.

I believe that the vast majority of SF users don't use it anyway, and based on tests conducted by me several months ago suggest that changing would only lose Elo.

Examples:
https://tests.stockfishchess.org/tests/view/651f309bac57711436726bba
https://tests.stockfishchess.org/tests/view/651fea29ac57711436727d85
https://tests.stockfishchess.org/tests/view/65257c343125598fc7eb68a1
https://tests.stockfishchess.org/tests/view/652296c83125598fc7eb2ad7
Tune: https://tests.stockfishchess.org/tests/view/652a70313125598fc7ebd706 (keeping the value at 100, zz2)

Non-Functional
Bench: 1283323

@Disservin Disservin added no-bench-change to be merged Will be merged shortly labels Dec 13, 2023
@Disservin Disservin closed this in 536d692 Dec 14, 2023
rn5f107s2 pushed a commit to rn5f107s2/Stockfish that referenced this pull request Jan 14, 2024
The SlowMover option allows users to modify the timeLeft variant, impacting the
engine's time management. However, this feature, while theoretically flexible,
doesn't offer substantial benefits. Instead, it introduces the risk of
non-experienced users altering values without a clear understanding of the
effects, potentially leading to a weaker engine.

The vast majority of SF users don't use it anyway, and based on tests conducted
by fauzi several months ago suggest that changing it would only lose Elo.

Examples:
https://tests.stockfishchess.org/tests/view/651f309bac57711436726bba
https://tests.stockfishchess.org/tests/view/651fea29ac57711436727d85
https://tests.stockfishchess.org/tests/view/65257c343125598fc7eb68a1
https://tests.stockfishchess.org/tests/view/652296c83125598fc7eb2ad7
Tune:
https://tests.stockfishchess.org/tests/view/652a70313125598fc7ebd706
(keeping the value at 100, zz2)

closes official-stockfish#4917

No functional change
windfishballad pushed a commit to windfishballad/Stockfish that referenced this pull request Jan 23, 2024
The SlowMover option allows users to modify the timeLeft variant, impacting the
engine's time management. However, this feature, while theoretically flexible,
doesn't offer substantial benefits. Instead, it introduces the risk of
non-experienced users altering values without a clear understanding of the
effects, potentially leading to a weaker engine.

The vast majority of SF users don't use it anyway, and based on tests conducted
by fauzi several months ago suggest that changing it would only lose Elo.

Examples:
https://tests.stockfishchess.org/tests/view/651f309bac57711436726bba
https://tests.stockfishchess.org/tests/view/651fea29ac57711436727d85
https://tests.stockfishchess.org/tests/view/65257c343125598fc7eb68a1
https://tests.stockfishchess.org/tests/view/652296c83125598fc7eb2ad7
Tune:
https://tests.stockfishchess.org/tests/view/652a70313125598fc7ebd706
(keeping the value at 100, zz2)

closes official-stockfish#4917

No functional change
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