Enjoy a challenging game of chess with the VIPER portable electronic chess computer. With estimated strength rating of 1750, the VIPER challenges players of all levels. Includes peg style chess pieces, a storage compartment, and snap on travel lid. Comes with large LCD window, 63 levels of play, a book opening library, and 1,000 hour battery life.
MAIN EXCALIBUR VIPER GAME CHARCTERISTICS
- NEW strong 4K program.
- 63 playing levels.
- Large LCD display.
- Problem solving levels up to mate-in-7.
- Check, Stalemate, and Mate announcements.
- Verify position.
- Take back move.
- Hint feature.
- Set-up position.
- Saves game in memory.
- Requires 4 x AAA batteries (not included).
Excerpts taken from Excalibur Viper user manual and box.