Classic Sudoku‪!‬ 4+

Simon and Mark have done it again, and this time have brought even more to the party than with their sandwich sudoku app (which still receives excellent updates each and every month as promised). The dual notes capability (which can be turned on in the options) gives a comprehensive capability to pencil marks and notation that far surpass any other app. Each of the 5 early puzzles I've completed have all felt unique and challenging, without being absolute gimmes. The guest puzzles from the master of Thomas Snyder are beautifully designed and very enjoyable to solve as well.

Unlike other sudoku apps that generate random puzzles with an algorithm, these puzzles are clearly handcrafted with care, each giving a certain amount of designed logic that cannot be found with computer made sudoku. For those who love handcrafted puzzles from Nikoli or GMPuzzles, this is the app for you.

While no advanced logic has been required as of yet, I fully expect the difficulty to ramp up significantly as they have done in the sandwich app, and I can't wait to see those puzzles!

Updated review: I have completed level 26 with 98 stars and I'm even more impressed with this app. The puzzles are all beautifully designed and some are absolutely exquisite. I am learning so much and can see that these will have replay value.
I do have one request: I have fat fingers and sometimes accidentally touch a known value next to the cell I intended to choose. It would be great if known cells could be locked once the values has been inserted.
Kudos to the team who created this app!

Initial review: I’ve been watching Simon’s videos for about a month and was so excited to hear this app was coming. I still have to remember to use the back arrow when I’ve made a mistake so I don’t erase my previous pencil marks, but other than that this app is all I hoped for and more. I’ve completed only five of the puzzles so far and I already feel I’ve learned so much. Thank you for this fun and challenging game and learning tool!

I love this app! Each puzzle is great in its own right and the options available to solve the puzzles are better or on par with anything else I have found. If there was one thing I would add to a wish list is the capacity to review the puzzle after I’m finished. As in the timer stops and I can go back on the history of actions to see what my process was. Specially to compare against the hints if I didn’t use them to see if I used what was hinted or if I came up with something else. But that is minor compared to everything else that this app gets right. If you love Sudoku definitely get this app!