Introduce futility pruning for captures #2651
Closed
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
|
Thanks ! |
MichaelB7
pushed a commit
to MichaelB7/Stockfish
that referenced
this pull request
Apr 30, 2020
The idea is somewhat similar to futility pruning for quiet moves - if a late enough capture doesn't give check and the static eval is much lower than alpha we can almost safely assume that this capture wouldn't be a good move. passed STC https://tests.stockfishchess.org/tests/view/5ea8544b53a4548a0348ee5b LLR: 2.95 (-2.94,2.94) {-0.50,1.50} Total: 236040 W: 44420 L: 43894 D: 147726 Ptnml(0-2): 3830, 27202, 55496, 27596, 3896 passed LTC https://tests.stockfishchess.org/tests/view/5ea87c842141237a731f0c7d LLR: 2.95 (-2.94,2.94) {0.25,1.75} Total: 81336 W: 10429 L: 10028 D: 60879 Ptnml(0-2): 589, 7356, 24404, 7703, 616 closes official-stockfish#2651 bench 4405247
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
passed STC
https://tests.stockfishchess.org/tests/view/5ea8544b53a4548a0348ee5b
LLR: 2.95 (-2.94,2.94) {-0.50,1.50}
Total: 236040 W: 44420 L: 43894 D: 147726
Ptnml(0-2): 3830, 27202, 55496, 27596, 3896
passed LTC
https://tests.stockfishchess.org/tests/view/5ea87c842141237a731f0c7d
LLR: 2.95 (-2.94,2.94) {0.25,1.75}
Total: 81336 W: 10429 L: 10028 D: 60879
Ptnml(0-2): 589, 7356, 24404, 7703, 616
Idea is somewhat similar to futility pruning for quiet moves - if late enough capture doesn't give check and static eval is much lower than alpha we can almost safely assume that this capture wouldn't be a good move.
bench 4405247