24Guru (24 Calculator) is a powerful program for the game of 24 points: 1.It's one of the most powerful programs of its kind. Solution engine of 24Guru has adjusted and passed cross-verification against all theoretically possible solutions. It has been perfect now; 2.You can check all solutions for any questions, only irrelevant solution(s) will be listed; 3.Support training, test and comments on multiple solutions for one question by the setting of "Difficulty Level"; 4.Support standard rule (addition, subtraction, multiplication and division) as well as advanced rule (standard rule + power and root); 5.You can choose to use J(11), Q(12), K(13) as an option; 6.You can view complete list of all solutions for all possible 24 questions in a whole under different rules; 7.Training plan and training game with instructions and variety of options; 8.World Cup in 4 levels - a formal test. Player with good score in World Cup can join World Ranking in respective levels; 9.Personal collection management - Trouble Maker and My Favorite; 10.3 UI languages - English, Simplified Chinese and Traditional Chinese.