It would be nice to have a strategy for disentangling any tangled ropes...
Four small numbers give the clue to the contents of the four surrounding cells.
The puzzle can be solved by finding the values of the unknown digits (all indicated by asterisks) in the squares of the $9\times9$ grid.
This Sudoku combines all four arithmetic operations.
What's the largest volume of box you can make from a square of paper?
Two sudokus in one. Challenge yourself to make the necessary connections.
Each of the main diagonals of this sudoku must contain the numbers 1 to 9 and each rectangle width the numbers 1 to 4.
Can you use your powers of logic and deduction to work out the missing information in these sporty situations?
Can you do a little mathematical detective work to figure out which number has been wiped out?
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a rhombus.
