4×4 Calcudoku
Fill every row and column with each digit from 1 to 4 once, and make the digits in each dashed cage reach the clue in its corner: a number and a sign, as in 12× or 3−.
How to play
- Put each digit from 1 to the grid’s size once in every row and every column.
- Each cage has a clue, a number and a sign. 12× means the digits multiply to 12; 7+ means they add to 7.
- − and ÷ are only used on two-cell cages, and the order of the two digits does not matter.
- A cage with no sign may use any of the four. A cage may repeat a digit when its cells share no row or column.
4×4 easy
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
4×4 medium
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
4×4 hard
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50