The Sudoku craze has been sweeping the nation this year and HLB Jackson Fox are keen supporters. So much so that we've devised our very own sudoku puzzle for you to practice with using the letters that make up our name.

Sudoku (Japanese), sometimes spelled Su Doku, is a placement puzzle, also known as Number Place in the United States.

What to do
The aim of the puzzle is to enter a number (or letters) from 1 through 9 in each cell of a grid (or, in our case, letters from the diagram above) , most frequently a 9x9 grid made up of 3x3 subgrids (called "regions"), starting with various numbers given in some cells (the "givens").

Each row, column and 9x9 square region must contain only one instance of each number or letter. Completing the puzzle requires patience and modest logical ability... First published in the United States, Sudoku initially became popular in Japan in 1986 and attained international popularity in 2005. If you want the solution, just click 'reveal solution'