Can you use small coloured cubes to make a 3 by 3 by 3 cube so that each face of the bigger cube contains one of each colour?
The items in the shopping basket add and multiply to give the same amount. What could their prices be?
Ben, Jack and Emma passed counters to each other and ended with the same number of counters. How many did they start with?
This second Sudoku article discusses "Corresponding Sudokus" which are pairs of Sudokus with terms that can be matched using a substitution rule.
This sudoku requires you to have "double vision" - two Sudoku's for the price of one
Solve the equations to identify the clue numbers in this Sudoku problem.
The challenge is to find the values of the variables if you are to solve this Sudoku.
You are given the Lowest Common Multiples of sets of digits. Find the digits and then solve the Sudoku.
In this Sudoku, there are three coloured "islands" in the 9×9 grid. Within each "island" EVERY group of nine cells that form a 3×3 square must contain the numbers 1 through 9.
