24Guru (24 Calculator) is a powerful program for the game of 24 points: 1.3 UI languages - English, Simplified Chinese and Traditional Chinese; 2.It's one of the most powerful softwares of its kind. Solution engine of 24Guru has adjusted and passed cross-verification against all theoretically possible solutions. It has been perfect now; 3.You can check all solutions for any questions, only irrelevant solution(s) will be listed; 4.Support training, test and comments on multiple solutions for one question by the setting of "Difficulty Level"; 5.Support standard rule (addition, subtraction, multiplication and division) as well as advanced rule (standard rule + power and root); 6.You can choose to use J(11), Q(12), K(13) as an option; 7.You can view complete list of all solutions for all possible 24 questions in a whole under different rules; 8.Training plan and training game with instructions and variety of options; 9.World Cup in 4 levels - a formal test. Player with good score in World Cup can join World Ranking in respective levels; 10.Personal collection management - Trouble Maker and My Favorite.