![]() ![]() The last move I want to include is e4d5, not e4e5 like mentioned. Do someone know how I can use stockfish to do this or is it not possible without using an external library like "python-chess"? I want to use stockfish only as long as its possible ^^ĮDIT: I was very silly. But the "perft" command only displays: a7a6: 1ĭ8d6 and d8d7 are possible moves for black's queen but I also want d8d5 (capture the pawn on d5). for my position it is possible for the black queen to capture the pawn (d5). Position startpos moves e2e4 b8c6 d2d4 d7d5 e4e5īut the problem is that stockfish only display legal moves without captures. I want to use stockfish commands to get a list of all possible moves for a specific position. Please continue to give us your feedback and suggestions on how we can help make /r/chess better for everyone. Use the message the moderators link if your posts or comments don't appear, or for help with any administrative matters. Twitter/Facebook posts must contain a direct link to the tweet/post, and include the author's nameĬhess Spoiler format for problem answers etc., ![]() Instructions for /r/chess PGN addon ( Chrome, Firefox)ĭon’t engage in abusive, discriminatory, or bigoted behavior.ĭon't ask for advice about ongoing games.ĭo not use /r/chess exclusively to promote your own content. Ideally, you could provide some code for python-chess with which I'm using right now.News Puzzles Games Strategy Twitch Other Resources So has anybody experience with Stockfish and can guide me in the correct direction on how to optimize the search for the best possible move. could drastically improve the search results for the optimal move. As usual, downloads will be freely available at /download. ![]() This lets me to believe that just given Stockfish the search depth is not the best way. Today, we have the pleasure to announce Stockfish 14.1. One Move At A Time Sophisticated chess programs since at least CHESS 4.5 have adopted the opposite strategy: generate a few moves at a time, search them, and if a cutoff can be caused, there will be no need to generate the rest of the moves. ![]() Most often Stockfish achieves a draw and can win sometimes with white. Because when using Stockfish 11 with depth 20 it can barely win against the computer of level 10 which is rumored to have a rating of around 2600. The post is about how to write a simple computer chess program within one day with only a few lines of code. I want to look deeper into how to achieve the optimal move. I also found this stack overflow article: Is the depth of a chess engine its strength? but most of the links there are dead. For a test of a given but not already generated move, the moving piece on its valid origin square of the board must have a valid. Unfortunately that paper is from 2013 and no specific engine is named, but it can be assumed that results are nowadays a little higher. A Pseudo-Legal Move is legal in the sense that it is consistent with the current board representation it is assigned to, and it must be member of all pseudo legal generated moves for that position and side to move. In the initial position at at depth of 1 there are 20 possible moves. In chess, this is done by counting the number of moves your move generator creates and comparing it to numbers confirmed by other engines. In this paper ( ) they analyze the correlation between search depth and rating of the engine the essential result is basically: Once you have your move generator mostly working, you want to test it to see if there are any edge cases you are missing. Of course the quality of the move depends on the search depth. Stockfish 11 is stated to have an approximated rating of about 3550. At the moment I set the depth of the search operation for the optimal move with (depth=engine_depth) I use python-chess to integrate the Stockfish engine in my simulation. I welcome any real performance benchmarks or results. From the starting chess position, with a. Ive downloaded Stockfish to compare the results. It is an interesting result, but has little bearing on real performance. Im making a chess program in Unity and Ive made a perft function to find the bugs in my move generator. I use the stockfish engine to generate the optimal moves in an simulated chess game. Assuming your move generator is 300 faster than stockfishs, that equates to no more than two ELO since stockfishes move generator accounts for no more than 5 of its total CPU time. ![]()
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