18 Sudoku puzzles with answers
Fill every row, column and 3 × 3 box with the numbers 1 to 9. Solve on screen, or print the puzzles and the answer key; the hint names the first square you can fill.
Solve one on screen
Type a number in any empty square. Your numbers stay on this device.
18 puzzles · Sudoku puzzles with answers · answers included
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Easy sudoku
- 1
Easy sudoku 1: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 36 numbers are given.
A 9 by 9 sudoku grid with 36 numbers given.
Solve it on screeneasy
Hint: Start at row 1, column 5: 2 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing: at every step, some empty square has only one number that fits.
- 2
Easy sudoku 2: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 36 numbers are given.
A 9 by 9 sudoku grid with 36 numbers given.
Solve it on screeneasy
Hint: Start at row 3, column 1: 6 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing: at every step, some empty square has only one number that fits.
- 3
Easy sudoku 3: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 36 numbers are given.
A 9 by 9 sudoku grid with 36 numbers given.
Solve it on screeneasy
Hint: Start at row 1, column 3: 5 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing: at every step, some empty square has only one number that fits.
- 4
Easy sudoku 4: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 36 numbers are given.
A 9 by 9 sudoku grid with 36 numbers given.
Solve it on screeneasy
Hint: Start at row 1, column 3: 8 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing: at every step, some empty square has only one number that fits.
- 5
Easy sudoku 5: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 36 numbers are given.
A 9 by 9 sudoku grid with 36 numbers given.
Solve it on screeneasy
Hint: Start at row 1, column 3: 6 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing: at every step, some empty square has only one number that fits.
- 6
Easy sudoku 6: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 36 numbers are given.
A 9 by 9 sudoku grid with 36 numbers given.
Solve it on screeneasy
Hint: Start at row 3, column 4: 4 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing: at every step, some empty square has only one number that fits.
Medium sudoku
- 7
Medium sudoku 1: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 26 numbers are given.
A 9 by 9 sudoku grid with 26 numbers given.
Solve it on screenmedium
Hint: Start at row 2, column 5: 8 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing, but some steps need the other view: a number that fits in only one square of its row, column or box.
- 8
Medium sudoku 2: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 26 numbers are given.
A 9 by 9 sudoku grid with 26 numbers given.
Solve it on screenmedium
Hint: Start at row 1, column 5: 3 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing, but some steps need the other view: a number that fits in only one square of its row, column or box.
- 9
Medium sudoku 3: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 25 numbers are given.
A 9 by 9 sudoku grid with 25 numbers given.
Solve it on screenmedium
Hint: Start at row 2, column 3: 8 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing, but some steps need the other view: a number that fits in only one square of its row, column or box.
- 10
Medium sudoku 4: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 25 numbers are given.
A 9 by 9 sudoku grid with 25 numbers given.
Solve it on screenmedium
Hint: Start at row 1, column 3: it is the only place in its row where 3 fits.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing, but some steps need the other view: a number that fits in only one square of its row, column or box.
- 11
Medium sudoku 5: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 24 numbers are given.
A 9 by 9 sudoku grid with 24 numbers given.
Solve it on screenmedium
Hint: Start at row 7, column 3: 8 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing, but some steps need the other view: a number that fits in only one square of its row, column or box.
- 12
Medium sudoku 6: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 26 numbers are given.
A 9 by 9 sudoku grid with 26 numbers given.
Solve it on screenmedium
Hint: Start at row 2, column 9: 4 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing, but some steps need the other view: a number that fits in only one square of its row, column or box.
Hard sudoku
- 13
Hard sudoku 1: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 25 numbers are given.
A 9 by 9 sudoku grid with 25 numbers given.
Solve it on screenhard
Hint: Start at row 2, column 8: it is the only place in its row where 6 fits.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing. When no square or number is forced, look for a number confined to one line inside a box, or two squares in a unit that share the same two candidates.
- 14
Hard sudoku 2: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 24 numbers are given.
A 9 by 9 sudoku grid with 24 numbers given.
Solve it on screenhard
Hint: Start at row 1, column 4: 9 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing. When no square or number is forced, look for a number confined to one line inside a box, or two squares in a unit that share the same two candidates.
- 15
Hard sudoku 3: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 23 numbers are given.
A 9 by 9 sudoku grid with 23 numbers given.
Solve it on screenhard
Hint: Start at row 3, column 2: it is the only place in its row where 1 fits.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing. When no square or number is forced, look for a number confined to one line inside a box, or two squares in a unit that share the same two candidates.
- 16
Hard sudoku 4: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 26 numbers are given.
A 9 by 9 sudoku grid with 26 numbers given.
Solve it on screenhard
Hint: Start at row 3, column 4: 5 is the only number that fits there.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing. When no square or number is forced, look for a number confined to one line inside a box, or two squares in a unit that share the same two candidates.
- 17
Hard sudoku 5: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 26 numbers are given.
A 9 by 9 sudoku grid with 26 numbers given.
Solve it on screenhard
Hint: Start at row 2, column 5: it is the only place in its column where 5 fits.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing. When no square or number is forced, look for a number confined to one line inside a box, or two squares in a unit that share the same two candidates.
- 18
Hard sudoku 6: fill the grid so every row, column and 3 × 3 box holds the numbers 1 to 9 once. 24 numbers are given.
A 9 by 9 sudoku grid with 24 numbers given.
Solve it on screenhard
Hint: Start at row 9, column 6: it is the only place in its column where 3 fits.
AnswerEvery row, column and box holds 1 to 9 once.
It solves with no guessing. When no square or number is forced, look for a number confined to one line inside a box, or two squares in a unit that share the same two candidates.
Timer and team scores
8 turns × 60 seconds = 8 minutes of play, plus instructions and breaks.
60
Pause whenever the group needs more time.
Team Lime's turn
Team Lime: 0
Team Violet: 0
Team Tangerine: 0
Team Sky: 0
Team Lemon: 0
Team Bubblegum: 0
Use this set with a group
Read a prompt, allow thinking time, then invite an answer or a pass. For a timed round, choose a turn length before starting. A host can keep the printed answers out of view until the round ends.