Sudoku help
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Input
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Tap a digit on the top digis row
and then tap a cell when you want
this digit to be placed
To clear a cell tap 'C' form the
top row and then tap the cell
to be cleared
The input is constrained to the
sudoku rules and will be refused
if breaking these rules
To resolve a regular sudoku tap the
label 'Regular
To resolve Diagonal sudoku tap the
label 'Diagonal' (Open Setup window
and check the diagonal option
To save the current puzzle open Setup
window and double tap 'Puzzle Save'
To clear all saved puzzles double
tap the label 'Puzzle Clear'
Tap 'Prev' and 'Next' labels to
see the saved puzzles
Rarely when you run a sudoku may take
a long time about one minute if you don't
to wait double tap the label 'Sudoku Break'
To see an example of this double tap the
label '17 clues example' and run it
If a sudoku have a unique solution
the board frame will be colored green
if not it's will be colored red and
to can see a second soluton by scrolling
tp the left side
To adjust the sudoku board on your phone
if by default it's not so go as follows
tap the label '+ Font' or '- Font' of the
Sudoku Font and use the Delta values
0.1 0.5 1.0 by tap the value it will be
marked by red color
When you done tap the label 'Save' marked
by magenta color
Read sudoku digits from image
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Here how to do it
go to
Google Gemini
click the '+' icon
from the dropped menu select 'Photo'
select a sudoku image than in the
Gemini type the following question:
extract digits as long string of
digits empty cell stand for 0
and Gemini will give you a
string like the following
0000000010000000230040050000001000000000
30600007000580000067000010004000520000000
Now select this string and from
the popup menu choose 'Copy'
go back to the app open Setup
window and double tap the label
'External Paste'
Latest Version
Varies with deviceRequires Android
Category
Free Puzzle GameContent Rating
Everyone
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Flag as inappropriateLast updated on Apr 14, 2026
Minor bug fixes and improvements. Install or update to the newest version to check it out!