Version 2.1
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- Some minor bugs fixed
- Changed the WWW page for the Continental World Ranking

Version 2.0
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- Added 9 new levels with different difficulty.
- Added option of saving the current position.
- The board can be rotated using the arrows on the corners.
- Improved graphics.
- Option of sent your best times to a World Ranking in Internet.
- Mixed in one program the English and Spanish versions.

Version 1.0
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- First version published in Internet.
