Difference between revisions of "Null Move Pruning Test Results"
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| − | '''[[Main Page|Home]] * [[ | + | '''[[Main Page|Home]] * [[Engine Testing]] * Null Move Pruning Test Results'''<br/> |
| − | '''[[Main Page|Home]] * [[ | + | '''[[Main Page|Home]] * [[Search]] * [[Selectivity]] * [[Pruning]] * [[Null Move Pruning]] * Test Results'''<br/> |
Here you can find some experimental [[Engine Testing#TestResults|test results]] on [[Null Move Pruning]] by varying [[Depth Reduction R|R]] on [[Depth]] and other features. | Here you can find some experimental [[Engine Testing#TestResults|test results]] on [[Null Move Pruning]] by varying [[Depth Reduction R|R]] on [[Depth]] and other features. | ||
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* [http://www.talkchess.com/forum/viewtopic.php?t=32152 my first cluster test result with R] by [[Daniel Shawul]], [[CCC]], January 29, 2010 | * [http://www.talkchess.com/forum/viewtopic.php?t=32152 my first cluster test result with R] by [[Daniel Shawul]], [[CCC]], January 29, 2010 | ||
* [http://www.open-chess.org/viewtopic.php?f=3&t=435 value of LMR and null-move] by [[Robert Hyatt]], [[Computer Chess Forums|OpenChess Forum]], July 12, 2010 | * [http://www.open-chess.org/viewtopic.php?f=3&t=435 value of LMR and null-move] by [[Robert Hyatt]], [[Computer Chess Forums|OpenChess Forum]], July 12, 2010 | ||
| − | * [http://www.talkchess.com/forum/viewtopic.php?p=367283 Extended Null-Move Reductions] by [[Alvaro Cardoso]], [[CCC]], August 20, 2010 | + | * [http://www.talkchess.com/forum/viewtopic.php?p=367283 Extended Null-Move Reductions] by [[Alvaro Cardoso]], [[CCC]], August 20, 2010 » [[Null Move Reductions]] |
'''[[Null Move Pruning|Up one level]]''' | '''[[Null Move Pruning|Up one level]]''' | ||
Latest revision as of 21:27, 17 January 2019
Home * Engine Testing * Null Move Pruning Test Results
Home * Search * Selectivity * Pruning * Null Move Pruning * Test Results
Here you can find some experimental test results on Null Move Pruning by varying R on Depth and other features.
Increasing R With Depth
Mark Lefler
One scheme tested by Mark Lefler on 25 October 2007 is as follows:
R=3; if (side to move has 2 or more pieces) and (depth>7) then R=4;
In a 100 game 1/1 match between Now with and without this change, the change was worth just over 50 Elo. I am now testing against other programs. Followup testing showed only about a 20 Elo gain, with about 100 games against a variety of opponents. Within the error of testing.
See also
Forum Posts
- verified null move by Robert Hyatt, CCC, June 21, 2009
- my first cluster test result with R by Daniel Shawul, CCC, January 29, 2010
- value of LMR and null-move by Robert Hyatt, OpenChess Forum, July 12, 2010
- Extended Null-Move Reductions by Alvaro Cardoso, CCC, August 20, 2010 » Null Move Reductions
