...re, the score of each move is now the score of the worst that the opponent can do.
17 KB (2,338 words) - 17:34, 15 January 2022
...f negaMax is only returning an optimal score, then just how is it that you can know which particular move this score is related to? These two questions ar
3 KB (435 words) - 08:40, 27 April 2018
...know that we can achieve at least that, so anything that is clearly worse can be ignored.
...e go to a search [[Depth|depth]] of 3 or greater, because now both players can make choices affecting the game tree. Now we have to maintain both a [[Lowe
37 KB (5,099 words) - 16:20, 1 December 2021
* [http://www.talkchess.com/forum/viewtopic.php?t=48356 LMR at CUT nodes can be arbitrarily bad!] by [[Michel Van den Bergh]], [[CCC]], June 20, 2013 »
15 KB (2,159 words) - 11:21, 31 May 2021
...Usually any given type of [[Neural Networks|neural network]] architecture can be employed in any of those tasks.
...ame but the final result (still) unknown. A form of reinforcement learning can be used for unsupervised learning, where an [https://en.wikipedia.org/wiki/
137 KB (18,484 words) - 00:18, 19 December 2021
...s later, but is conceptually simple, and we will first show how a computer can be programmed for such a strategy.
3 KB (408 words) - 13:52, 7 December 2019
...constituting an analysis of variations, until a position is reached which can be evaluated. The final choice depends on an acceptance value and if a move
7 KB (1,048 words) - 13:54, 7 December 2019
* [https://www.stmintz.com/ccc/index.php?id=93686 Can we use hash table at root?] by Tim, [[CCC]], January 31, 2000 » [[Transpos
5 KB (631 words) - 21:04, 8 November 2021
...o window]] search centered around alpha is conducted to test if a new move can be better. If so, with respect to the null window but not with respect to t
...second high failure, the first high failure remains the best move, and it can still avoid doing any more full searches.
28 KB (3,999 words) - 00:15, 1 February 2022
...cutoff, a [[Best Move|best]] (or good enough) move from a previous search can improve [[Move Ordering|move ordering]], and save search time. This is espe
...ally a 64-bit number, and with current hardware limitations, no hash table can be large enough to accommodate it. Therefor to calculate the address or ind
60 KB (8,162 words) - 21:35, 28 April 2022
...ne becomes unnecessary. This way, also the results from the partial search can be accepted - though in case of a severe drop of the score it is wise to al
13 KB (1,843 words) - 23:44, 4 October 2019
...aluation|static exchange evaluation]] < 0, [[Delta Pruning|delta pruning]] can be used for that purpose.
...t exceeds [[Alpha|alpha]], to see if any [[Tactical Moves|tactical moves]] can increase [[Alpha|alpha]].
25 KB (3,459 words) - 10:30, 15 June 2021
...efining one [[Ply|ply]] to be a number greater than one. Then an extension can be added that does not yet extend the search, but further down the tree may
14 KB (1,884 words) - 21:12, 20 November 2020
...otes too little effort to critical lines. The singular extension heuristic can be seen as a solution to this problem.
...of flattery"; as to why the author(s) of the clone don't openly admit it I can't say. But the specific idea I'm talking about here is attributed to the cl
16 KB (2,280 words) - 17:09, 16 November 2020
...has been my alter-ego when it comes to discussion of chess ideas, and what can be done to allow HiTech to understand this or that.
13 KB (1,716 words) - 17:09, 16 November 2020
...hould we be searching a line that already is equal to or longer than n, we can impossibly increase alpha even if another mate was found. This means we cou
...root, the opponent can impossibly be evaluated > SCORE_MATE - n. Thus beta can be set to this value should it be higher.
5 KB (719 words) - 11:57, 12 May 2018
...hing on his turn, that is, by playing a "No Move" and then seeing if White can enforce an immediate checkmate.
...that sometimes an extension of the game tree by introducing of dummy move can lead to a reduction of the search tree. In positions with material advantag
40 KB (5,641 words) - 18:55, 25 December 2020
...In principle, forward pruning at an expected All-node is not dangerous but can trigger unnecessary re-searches.
7 KB (953 words) - 23:30, 2 November 2019
...and this pruning technique does not make much difference in most cases, it can significantly decrease the search effort when move ordering heuristics fail
7 KB (968 words) - 23:21, 14 December 2019
Some processing power may be saved by testing if '''any''' move can improve over alpha. Then in truly hopeless nodes we don't do move generatio
// The next three lines test if alpha can be improved by greatest
3 KB (418 words) - 10:37, 25 September 2020
