[iPhone God App] It was found using the ▻Sudoku actually

▻Sudoku is Sudoku with Point System, Runs, and Online Leaderboards. Discover the next evolution of Sudoku with amazing graphics, animations, and ease of use. This is a Sudoku like one you have never experienced before ;)

...Thousands of puzzles, all free. Top class puzzles with selectable level of difficulty :)
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To the classic Sudoku, we added:

=> A smart point system, wherein your score is based on 1) the value of each number multiplied (at the time of its match) by a multiplier that decreases in time and 2) the value of each block, row, column multiplied (at the time of its completion) by the decreasing multiplier

=> Thanks to Game Center, you can now rank and compare Sudoku scores and achievements against friends and strangers

=> ▻Sudoku also counts the runs, that is, each uninterrupted sequence of games won, and adds them to the online leaderboards
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In ▻Sudoku, you win a game when you solve a puzzle with 3 errors or less (we used this threshold to give a bit of slack for mis-tapping :) Also, you have a number of hints to help you play (more at the easy, less at the hard level). To fit any taste, you can choose between a lush tile look or a more classic board look :)
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You gain access to medium level after you win the easy level 2 times consecutively, same for hard level (3 times)
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What our testers are saying:

• "The game is perfect! I am really loving ▻Sudoku. It is very addicting and fun, absolutely the best sudoku I have ever played."
• "Fabulous! You turned me into a ▻Sudoku fan hook, line and sinker :)"
• "The gameplay of ▻Sudoku is great, very smooth."
• "Great app - love it! Well done! Love the start up sounds/music!"