V. 1.5 - Added added difficulty levels. V. 1.4 - System of points remade. - Notable improvements in the ranking. V. 1.3 - Spanish dictionary optimized (in english is perfect) V. 1.2 - Improved application code. - Fixed problem with the thread of time. - Small design improvements. V. 1.1 - Improvements in the design. - Improvements in dictionaries.