85
6
54
1
187
118
8
1
145
44
22
6
7
9
2
11
216
8
44
11
11
16
114
8
66
7
3
55
179
22
6
5
12
44
1
2
77
8
3
2
7
8
13
179
11
4
4
43
55
157
8
116
12
128
22
9
16
113
136
167
9
6
2
3
11
9
DifficultyEasy
Mistakes0/3
Time00:00
Progress57%

Killer Sudoku — A Numbers Puzzle with a Twist

Killer Sudoku adds cage sums to classic Sudoku rules. Groups of cells (cages) must sum to a given total. No number can repeat within a cage. The classic row, column, and 3×3 box rules still apply.

Select Killer mode and choose Easy, Medium, Hard, or Expert difficulty. This variant adds a layer of arithmetic reasoning on top of standard Sudoku logic.

Learn the fundamentals in our Sudoku rules guide and explore solving techniques for all skill levels.