#ONLINE COLOR SUDOKU TRIAL#
Give the SudokuDragon a free 23 day trial by visiting our download page. Together with the square annotations coloring is a useful feature. You can use coloring just to remember particular interesting squares. As either orange or turquoise must be correct and not both must be correct that proves it! If the orange squares are correct then Bf can not take a 5 but nor can it if the turquoise squares are correct. When solving printed Sudoku, use different colors. Having marked the alternate pairs it is evident that square Bf (lime green) can not take a 5 as it is in the same column as a turquoise square and the same row as an orange square. We would like to give you some tips to help you solve medium Sudoku. In addition there is another pair Bd (blue) and Fd (red) in column d. This square is in turn paired with turquoise square If. Next Hg is paired to orange square Ii as a pair in region Gg. Only one of these two squares can be the '5' in column g. Starting with orange square Bg this is paired to turquoise square Hg. Alternate pairs have been marked with different square colors. In this example puzzle screenshot, coloring has been used to identify squares that can take a 5. The colors are added from the right mouse menu or the Edit menu or, using the keyboard SHIFT+Function key. There is a command to quickly clear coloring from all squares in one go.
Sudoku Dragon offers color marking that lets you easily put a temporary mark on a square. The original Colour Sudoku model was proposed by Meurig Beynon and created by Antony Harfield as an extension to a Sudoku model created by Karl King in connection with his masters thesis Uncovering Empirical Modelling.To keep track of squares on paper and pencil is easy, you can mark a square and rub it out when no longer needed. This version of Colour Sudoku (which is intended for demonstration purposes and only implements a small subset of the interactions supported by the EM version) was developed by Antony Harfield in connection with his doctoral thesis EM as a new paradigm for educational technology. Another strategy for solving is experimenting with the colour assigned to the digit.Ĭolour Sudoku is a by-product of research into computing support for education carried out by the Empirical Modelling Research Group at the University of Warwick. The colours that are assigned to the digits can be changed from the panel on the right-hand side.
To remove a digit, move the mouse pointer over a square and press the spacebar on the keyboard.Ĭolour sudoku adds another dimension to solving by assigning a colour to each digit.To insert a digit into a square, move the mouse pointer over a square and use the keyboard to type a number into the square.The aim of Sudoku is to fill the grid with the digits 1 to 9 in such a way that each digit occurs exactly once in each row, column and region: The Colour Sudoku application requires the Adobe Flash Player version 9 or newer. Provide alternate content for browsers that do not support scripting // or for those that have scripting disabled. Staff Resources (Restricted permissions).Artificial Intelligence and Human-Centred Computing.Student Handbook (Restricted permissions).Student Support Appointment Booking Form.Computer Science with Business Studies (Restricted permissions).