Solver App for Android
Sudoku Solver
for Android
Updated 28 Jan 2026
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Sumoku or 'Latin Square' Killer Solver
Click to edit candidates or enter a solution: Show Candidates

1 2 3 4 5 6 7 8 9
Auto Clear Show Cage Parity
Clues+Solved: 0/81
New Rating system discussed here
Help on Killer Definitions used in this solver for transporting puzzles
Quick help: Using this Solver

You can pick examples from the list above. Click on Take Step to step through the solution. Unknown squares are filled with 'candidates' - possible solutions.
Any cells that are reduced to one possible candidate are solved.

You can enter a new Sumoku puzzle using the new 'designer' - click on "Enter new Sumoku". Once you fill in the clues and set up the cages correctly it can be solved.

Unlike the other solvers you can only edit the main board when solving. The small board only displays the clues.
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Version 2.53.1

Coordinate system: Letter/Number rYcX

See the Strategy Home Page for strategy guides
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Check for Solved Squares   
Show Possibles  
 1: Hidden Singles  
 2: Pairs Naked+Hidden  
 3: Innies and Outies (1 cell)  
 4: Killer Combinations (easy)  
 5: Pointing Pairs  
 6: Box/Line Reduction  
 7: Triples Naked+Hidden 
 8: Captured Candidates  
Tough Strategies
 9: X-Wing  
10: Chute Remote Pairs  
11: Y-Wing  
12: W-Wing  
14: Rule of Parity  
15: Cage Splitting  
16: Innies/Outies (2+ cells)  
17: Cage/Unit Overlap  
18: Killer Combo's (hard)  
19: Cage Compare  
20: Simple Colouring  
21: Quads Naked+Hidden  
22: Swordfish  
23: XYZ Wing  
Diabolical Strategies
24: X-Cycles  
25: XY-Chain  
26: 3D Medusa  
27: Jellyfish  
28: WXYZ Wing  
29: Aligned Pair Exclusion  
Extreme Strategies
30: Grouped X-Cycles  
31: Finned X-Wing  
32: Finned Swordfish  
33: Altern. Inference Chains 
34: Almost Locked Sets  
35: Death Blossom  
36: Sue-de-Coq  
37: Digit Forcing Chains  
38: Nishio Forcing Chains 
39: Cell Forcing Chains  
40: Unit Forcing Chains  
41: Quad Forcing Chains  

How to play Sumoku

Sumoku is a hybrid between Killer Sudoku and KenKen.
Like KenKen there are no 3x3 boxes (a third constraint).
Like Killer Sudoku the cages are always summed (addition).

You need to place the numbers 1 to 9 on all the cell so that 1 to 9 is unique in every row and column like a Latin Square. However, you will have few, if any, completed cells in Sumoku. Instead, groups of cells form blocks or 'cages' - and the clue is the sum of the solutions to those squares. Each 'cage' is shown by a color or dashed line. A clue of '3' in a two-cell cage means those cells will contain 1 and 2 - but it won't be obvious which way round at the start of the puzzle.

This puzzles follows the Killer Cage Convention which says duplicate values are not permitted in a cage.

Combinations are key to this puzzle at the outset, but all Sudoku strategies still apply. Killer specific strategies have been highlighted in cyan in the strategy list.

I'd love to hear your feedback.







New: Version 1.01 (February 28th 2026)
Sumoku Solver released
Solver created on 28-Feb-2026.
This page was last modified on 28-Feb-2026.
All code and design is copyright and for personal use only and may not be reproduced elsewhere.
Copyright Andrew Stuart @ Syndicated Puzzles, 2005-2026, Privacy
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