Researchers make Colour Sudoku

December 18th, 2007 - 2:03 pm ICT by admin  

London, December 18 (ANI): A doctoral student at the University of Warwick has invented a colourful and easier Sudoku, as part of his research on how to make computers more creative.

Antony Harfield has named his invention Colour Sudoku. He has revealed that he created it while working on how to use computers to show the complicated alternatives on offer to help solve a complicated problem.

He says that his invention has become popular among many people who are very much into Sudoku.

“This was the application that people got most excited about,” the Telegraph quoted him as saying.

The researcher has assigned a colour to each digit, keeping in mind that the human eye is quick to absorb information about colour and patterns.

“It can speed things up,” Harfield says.

Squares containing a digit have also been assigned a colour according to the digit’s colour. However, the clever part comes with the colours assigned to empty squares.

“If you look at the whole grid, the darker areas have fewer combinations, so to focus on them is a good strategy,” Harfield says.

He says that squares have been coloured according to which digits are possible for that square taking account of all current entries in the square’s row, column and region. Therefore, an empty square’s colour is the combination of the colours assigned to each possible digit, he adds.

Harfield says that a player can also get additional clues by using the computer to vary the colour assigned to the each digit, and by watching the unfolding changes in the pattern of colours. Appearance of a black square will indicate a mistake.

The researcher believes that the interaction between the shifting colours and the logical deductions of the Sudoku puzzle solver is a way of exploring a radical approach to computing called Empirical Modelling, used for artificial intelligence, computer graphics, and educational technology. (ANI)

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