The colour of the last player to move in an opening line, in other words, the piece colour of the player, that chose this particular line.

The minimum number of games that must have been played in the opening for it to appear in the search results.

The name of the opening(s) to search for. Multiple opening names can be entered by separating them with a semi-colon. You don't need to enter for the full name of the opening for it to match, for example entering Dragon will match the standard Sicilian dragon, as well as the accelerated dragon.

The ECO code of the openings you wish to see. Multiple ECO codes can be entered by separating them with semi-colons. ECO ranges can also be entered in the format B50-B56. Multiple ranges can also be entered such as B50-B56;B60-B70.

The name of the opening.

The colour of the pieces played by the last player to move in the opening line.

The total number of games that used this opening.

The ECO classification for this opening.

The date this opening was most recently played.

The performance rating for this opening. This is the performance rating of all the games this rating was played in.

The average rating of players who choose to play this opening.

The total % of games in which the player who choose this opening won.

The total % of games in which this opening was played that led to a draw.

The total % of games in which the player who choose this opening lost (i.e. their opponent won).

The moves which define this opening.