Killer Sudoku 1
As with a regular Sudoku, the digits 1-9 appear once and only once in each row, column and square. Instead of
being told some initial digits, you are told what the sum of various digits is. In this example the top three left
squares, surrounded by dotted lines total 15.
Each square, column and row will total 45.
Some combinations have only one possibility
e.g. 3 must be made from 1 and 2, but you don’t know which order.
e.g. 24 in 3 digits must be made from a 7, 8 and 9.
The clues will only allow you to find all the digits, but if you are stuck you can ask for hints.
Asking for a digit costs you 5 points e.g. “What is D2?”
Asking if a certain digit is correct only costs 2 points e.g. “Is D2 a 5?”
When your team has finished Killer Sudoku 1, Kakuro 1 and Ken Ken 1, you may get the harder puzzles.
A
B
C
7
13
D
9
11
2
4
19
15
4
8
3
5
2
13
3
1
2
5
2
3
7
17
10
7
3
7
15
14
3
2
4
1
15
5
18
12
10
4
2
9
I
9
3
5
1
6
4
8
6
9
14
8
H
14
7
16
1
G
1
5
3
12
F
18
6
4
E
1
8
9
13
8
5
7
6
4
9
6
5
4
6
7
6
8
5
3
6
4
7
1
2
4
9
9
1
4
13
8
4
3
21
11
6
2
9
5
9
7
2
6
3
2
5
14
8
9
1
7
4
3
7
13
8
6
1
9
9
9
8
Ken Ken 1
The digits 1-7 appear once and only once in each row and column. Instead of being told some initial digits, you
are told a mathematical operation than can be applied to the digits, and what the answer is. In this example the
top two squares on the left have difference of 2. They do not have to be in order, e.g. 6, 4 is just as valid an
answer as 4, 6.
Some combinations have only one possibility
e.g. 42 multiplied from 2 digits must be made from 6 and a 7, but you don’t know which order.
e.g. 6 subtracted from 2 digits must be made from 1 and a 7, but you don’t know which order.
The clues will only allow you to find all the digits, but if you are stuck you can ask for hints.
Asking for a digit costs you 5 points e.g. “What is D2?”
Asking if a certain digit is correct only costs 2 points e.g. “Is D2 a 5?”
When your team has finished Killer Sudoku 1, Kakuro 1 and Ken Ken 1, you may get the harder puzzles.
A
B
C
D
E
F
G
1
2
3
4
5
6
7
Kakuro 1
A number in the top right of a square, means the digits to the right add to that number. A number in the bottom
left of a square means the digits below add to that number.
Each sum is made up of unique digits. E.g. 16 can be 7 + 9 or 9 + 7 but NOT 8 + 8.
Some sums have only one possibility
e.g. 3 must be made from 1 and 2, but you don’t know which order.
e.g. 24 in 3 digits must be made from a 7, 8 and 9.
Digits need to be placed in the non-shaded squares. If you pass a shaded square, then the next unshaded square
is not part of that sum. Digits can be repeated in a row or column, as long as they are not from the same sum.
The clues will only allow you to find all the digits, but if you are stuck you can ask for hints.
Asking for a digit costs you 5 points e.g. “What is D2?”
Asking if a certain digit is correct only costs 2 points e.g. “Is D2 a 5?”
When your team has finished Killer Sudoku 1, Kakuro 1 and Ken Ken 1, you may get the harder puzzles.
A
B
7
C
10
D
E
F
16
G
3
23
H
I
J
1
12
11
20
23
19
7
2
11
3
7
11
4
10
20
30
3
4
16
22
11
14
12
5
18
6
9
16
21
7
14
10
17
17
29
16
17
6
4
8
23
9
16
11
10