| Game Details | ||
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 | Chapter 4. Chess Database |  |
| Game Details | ||
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| | Chapter 4. Chess Database | |
The game details shown next to each board on the game database page shows details relevant to either a particular game, or a sequence of moves entered by the user.
When the game details are for a game, instead of user entered moves, the details for that game are displayed above the move list. This data includes the names and ratings of the players who played the game, the date the game was played, the event and location the game was played in, the result, the opening, and the ECO code the game was tagged with. The opening used to tag the game is based on the latest position in the game that matched a move reached in a recognized opening. Because the opening tagging is position based, rather than move based, the opening tag is transposition aware, and relies on the positions eventually reached, rather than the moves made to reach them.
The move list shows the current list of moves. For a game, this starts out as the full list of moves from the game. If the user is making their own moves, the move list will show those moves. Whether the moves are for a game stored in the database or not, new moves or variations can be added at any point by playing a different move to the next move to be played in the move list. Any move can be clicked on in the move list in order to jump to that position on the board.
Just below the move list is the opening relevant to the current position shown on the board. This is different to the opening a game was tagged with, as it shows the opening the move list would be tagged with if the game finished at the currently selected position. As you move through a move list, the opening will become more specific as the moves continue.
The buttons beneath the move list allow several actions to be taken:
Report Problem
Due to the large variety of public sources that games have been collected from, inconsistencies are inevitable. Exact duplicates are removed from the database, however there may be near duplicate versions of a game that are incorrect and require removal or correction. The Report Problem button allows you to report problems with a particular game, and the resulting reports will be used to improve the quality of the database. If you are unsure on whether a game score is accurate, you may want to post a link to it in the forum , so others can discuss it.
Download PGNThe Download PGN buttons allows you to download the PGN of the game you are viewing. The Download PGN button can also be used to download moves,variations or comments you have entered yourself.
Delete Variation to EndVariations created in the move list can be deleted using the delete variation to end button. When clicked, the currently selected variation is deleted to the end of the line, any sub variations on the deleted moves will also be removed.
Promote VariationThe Promote Variation button takes the sub-variation holding the currently selected move and swaps it with the parent variation, with the old parent variation becoming a sub-variation.
Add Comment to MoveAfter selecting a move in the move list, the add comment button allows you to add a comment to the move. You can select if the comment should appear before or after the move. Once a comment is added, you can edit the comment by clicking on the comment text.
The next and previous game buttons allow you to move though the results of a game search.
Reset BoardThe reset button returns the board and move list to the initial position.
Jump to NoveltyThe jump to novelty button moves to the last position in a game that is shared with other games. This means the next move to be played was a novelty, never seen before in any game in the database. The novelty button can be used in combination with the Games for Position tab, which after the Jump to Novelty button is pressed will show the games in the database that were closest to the current game.
Because games can be loaded directly into the page without causing a page reload, the link at the top of the browser window, may not reflect a link to the current game. To provide a convenient way of saving or book marking links to a game and position, a permanent link is provided beneath the game board. For games this will link to the game and the current position. For moves entered without a game, it will link to a page that will show the current board position, but without the move list.
The material graph shows how the material balance in a game changes over time. This can be used to see key points in the game, both where material has been swapped, or a persistent material advantage has been gained. The graph can be clicked on to move to the relevant point in the move list.
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| Opening Details Page |  | Database Subset Selector |