Loading My Moves: . Learned: Games: . Theory: . Notn. List Book Login Logout. As some here know, when playing Daily games, one is allowed to use opening books as well as database moves when playing your. The database can be searched via many criteria, including chess players, chess opening, player ratings, game result, and the year the chess game was played.
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With our Chess Opening Explorer you can browse our entire chess database move by move. The Opening Explorer is the best tool if you want to study chess. This opening database can then be used as long as the opponent plays a new move from the database, so usually more common opening. Enter opening moves on the chess board below to see the name of that chess opening and to get statistics from human Grandmaster games for those moves.
There are three ways to store an opening database: Opening lines Last positions All positions The first two options are probably easier to implement. They are usually stored as text files, such as files of PGN format for openings lines or EDP format for last positions. The most advantage is that by using text form they are readable, understandable and editable by human without any special software. However, the main disadvantage is that they may take too much space as well as time for searching since an item may take from 50 bytes for FEN strings to hundreds of bytes for PGN text. If we store openings "continuously" all possible opening positions both data size and searching time become too huge and become unacceptable for playing. In practice, those opening books are usually very small with some lines or positions only, they cannot be used for real game playing but for testing.
All entries for a given color depending on which folder you're in, White or Black should be marked not just with a move, but with an indication of how deep Stockfish searched. Then I switched over to Lichesse, which has worked out a lot of moves already in a cloud- they go by depth.
Since I've mainly used them, most of my entries are marked by depth. The minimum depth I use is 22, so you will see next to a move the depth like d Depth seems to get calculated faster the further into the game you go- I'm guessing because there are less pieces, so less moves to consider.
Some folders and files are marked with GP. For those who read God: A Golden Path is a path that Stockfish believes is best moves for both sides. I have a short one for Sicilian Defense only for black as I only play 1. And if you find a way out from this jungle , I will be the first candidate for president in your fan club. One may glean complexity or required search depths where equal engine 'binds up' and master humans could maybe reconcile the discrepency with pet lines and such many far into theory as to be middlegame positions.
I think that sounds like an interesting idea, but if I understand you right, it's not something I would want to put my time into ;-. I'm glad to know that I'm not the only person who thinks that the Stockfish openings have some real potential: You can make a book file,. I think it's pretty simple, just enter the moves in Fritz, and when you're done, I think you can turn it into an opening book. I'm going to try and do this as well, I want to see if anyone is working on this seriously like making a book using only Stockfish and then maybe using Stockfish 9 to test it against another computer running Stockfish 9 Testers use different computers I think, probably to keep the playing strength as high as possible for each side with a different oppening book and run a tournament of many long games against each other to see if there is a benefit or not in engine vs engine matches.
Of course this could also be used for human players as well, were just not as good at memorizing tons of lines 20 moves into the game where an engine just uses it while it's playing-- the cheater! It's true we can't memorize lines like a computer can. However, here at chess.
I think it's made me a better player in general as well, as there are many situations that keep on coming up and I've generally found that Stockfish responds to almost every situation quite well. I -have- made a few exceptions in my database- there are some moves where I think Stockfish's choice, even at great depth, is suboptimal and so I have written "exception" in moves of this sort. In one case, I remember where, after Stockfish put in a given move, the evaluation actually seemed to go down with certain moves afterwards, so in effect Stockfish was kind of downplaying its own move: Also, if Masters tend to do badly with a move that Stockfish approves of, it has sometimes gotten me put in an "exception" and go with the move that Masters do better with.
Engine made you a better player? Because there are fools that might believe you let's see how good Stockfish made you. Now those who don't know you , don't know what you are doing. You resign in perfectly playable positions so that you keep your rating low and play with low rated opponents the definition of sandbagging. After your opponent got out of theory you had no idea what to do.
You failed to achieve any kind of piece cooperation , you blundered a pawn and he was clearly better until he blundered horribly. Your opponent was an rated. You can't win an player if he doesn't blunder. You showed no creativity and no understanding at all. Even your ultimate goal , to play well the opening , failed miserably.
And you play how long? Or more? With that pace , I guess it might be in around 5 years. Impressive man , very impressive! Stockfish training seems to be the future of chess! Wait , I think that was happening back in the days of Ruy Lopez 16th century when there was no books and monks were the best players in the world. It doesn't matter , time for geniuses like you , is relative.
If I had the money, I'd consider suing you for libel. I don't "resign in perfectly playable positions" to "keep [my] rating low and play with low rated opponents". I resign because I don't feel comfortable in the position. I'm not going to bother with the rest. It seems you're far too concerned with your own fevered imagination to pay heed to reality. The database can be searched via many criteria, including chess players, chess opening, player ratings, game result, and the year the chess game was played.
Chess opening statistics can been viewed on the display to the right of the board. To search the chess database, either enter your criteria into the quick search box or use the advanced search by clicking on the advanced search label. To see the chess games in the database for the current position, click on the "Games for Position" tab.
By default, the database only shows chess games where both players were rated over , you can change the database subset using the database selector at the top of the page. There is also a non-searchable HTML only game list , but most users will want to use the main game database page. Chess T empo. Premium Membership Users. Forum Home Recent Posts. Please Enter Problem Details. Too Short - Extra Moves.
Nf3 Too Long - Finish Move e. White Player - Correct Name: See below for online sources of such games Another possibility is that you supplement the games with some hand tuned lines from various opening books or manuals like Modern Chess Openings, Encyclopaedia of Chess Opening etc, although I advice you to be careful of any copyright infringements.
A interesting idea in my opinion is to include games played either by the program itself or by other Chess programs. If the original opening book is small, the former might give you a insight into the style of the chess program once out of book. In fact, you might be able to simulate book learning crudely, by constantly, using the games generated by the program to add lines or build a entirely new book include only moves [either by using a database program to filter those out or through the book generator options] that have done well.
Including games by other programs might cover opening lines commonly used by Chess programs but could lead to some "computer-like" moves being added. Where do I find games for download on the net? There are a lot of online sites where you can download, search for games, here are some. Good place to search online for games filtered by year, player, opening etc.. Search by opening, player, results, position etc. Quality of games might be uneven but the quantity cannot be ignored.
Lusen's opening book - A high quality Chessbase opening book. For more information. But more interesting, I think is the pgn files uploaded by various contributors.
The original This collection of games has been further refined by others by adding more games to the collect. Given that these collection of games are already optimised [typically with extract] for building opening books they can serve as a good base of games for you to build on.
If you have collected the games from various sources, it's time to combine them all together. You can download some of them here. If you have some game files in other commercial database formats you must eventually convert them to PGN for the book building process. Again you might need some converters from here. Chessbase light may be a good choice but it limits you to 8, games. Still it handles files in the CBH format which you need if you want to build Goliath books. After filtering how many games should you have?
If you need or want a big opening book, you will need a extremely big opening database of games, perhaps in excess of games. Remember, not all the games will be taken into the opening book, when the book is generated. Extract is a good utility to use for the above work. One requirement that must absolutely be met is that the PGN file used for generation is "clean". In other words it must be stripped of all annotations, variations and NAGs [Note: Some book builders like those belonging to Yace, Crafty, Zchess etc can actually use these symbols like!
This can be done by extract as well. For example, when trying to build from Other book builders like Bringer, displayed error signs but were able to continue.