STutor vs Sudoku Institute

STutor (for SUDOKU TUTOR) is a no-nonsense sudoku solving APP that can display three level of hints while you are solving a puzzle. There are no AD's; no "in-APP-purchases". Just a program to help you advance your Sudoku solving skills. STUTOR solves puzzles using 5 strategies following a logical sequence of methods. The sequence and methods are described in five (5) HELP screens. STUTOR is most appreciated when it displays clues for solving those pesky Friday/Saturday more advanced puzzles. No more disappointing unsolved puzzles. Puzzles are entered manually in a Sudoku grid or by entering (or pasting) an 81 character string. Puzzles can be saved, recalled, changed, deleted, and reordered in the Archive. Upon pressing any of the bottom buttons (except clr), STUTOR will validate and solve the puzzle. Any subsequent user entries will be compared with the solution. A valid entry is entered into the puzzle. If the entry does not correspond to the solution, all the "possibles" or minis are displayed for that cell. If minis are already displayed, the entered number is removed from the minis. Swiping more that two cells in a row will display minis in the row. Ditto for a column or a group. Swiping through more than two rows, columns or groups will display all minis. The "hint" button toggles between a text only hint and one that also displays a clue on the puzzle. The STEP button displays all hint details and alters the puzzle accordingly.

The fun of playing Sudoku is logical reasoning. In the current Sudoku APPs, the biggest problem is that it can’t show the solving techniques and explaining them. When players get in trouble, they can either guessing, or let the APP to help fill a baffling number. Players still confused, and can not grow. Sudoku Institute solved the problem completely. Sudoku is one of the best puzzle games in human history, and there are plenty of fans around the world. The vision of Sudoku Institute is helping players to experience the magical world of Sudoku, and boarded the peak. Sudoku Institute is game, but also tutorials. ——— TECHNIQUES There are the world's most professional solving techniques in Sudoku Institute, each skill has a detailed animated tutorials and explanation. They include Last Value, Hidden Single in box, Hidden Single in line, Pointing, Claiming, Naked/Hidden Pair, Triplet, Quad, X-Wing, Swordfish, Jellyfish, Skyscraper, Two Strings Kite, Turbot Fish, X-Chain, Group X-Chain, XY-Chain. ——— TRAINING There are 9 training puzzles for each technique. From easy to difficult, gradually deepened. ——— ANSWERING SYSTEM Sudoku Institute has created a powerful real-time answering system, she can show the details of the problem-solving steps dynamically. ——— SOLVER The Solver can solve sudoku puzzles that players input. Whenever players have doubts about a puzzle, they can get an answer from the Solver. ——— ENDLESS CHALLENGE Sudoku Institute provides three challenge levels for "Normal", "Difficult" and "Legend", which contains endless Sudoku puzzles. In the challenge levels, you can challenge your winning streak, gains and rewards.