This Chess App focuses on the Sicilian Defence / Defense Opening.

It contains over 190 different variations of the Sicilian Defence / Defense and allows the user to learn and practice each of the variations.

In addition the app includes over 250 Master Games - each game an example of the Sicilian Opening.

This app includes an Opening Preparation feature that allows the user to create their own custom variation of the Sicilian Defence / Defense complete with notes section.

New Game Engine added via the "Play" button (once you choose a Variation from the Openings section).

New Game Engine plays the variation you selected and then continues to play against you.

New Game Engine can play as Black or White Player.