Load a puzzle, play normally, then ask for a nudge when you get stuck.
Load puzzle
Start coaching
Choose a SudoSketch puzzle, or paste an 81 character puzzle string. Use 0 or . for blanks.
Paste puzzle
Coach options
Settings
Puzzle
Help
How to use
Coach, not cheat mode
Load or paste a puzzle, fill in the grid as normal, and use Auto Notes if you want candidates added.
When stuck, press Nudge. The Coach will suggest the next logical step it can see. Press Explanation to walk through the logic one step at a time, with the board highlights changing as you go.
Use Keypad for normal entry, Pencil to write directly into the grid, and Notes to add or remove candidates instead of placing digits.