techbeat writes "A strain of Escherichia coli bacteria can now solve logic puzzles – with some help from a group of students at the University of Tokyo, Japan, reports New Scientist. The team began with 16 types of E. coli, each colony assigned a distinct genetic identity depending on which square it occupied within a four-by-four sudoku grid.The bacteria can also express one of four colors to represent the numerical value of their square. As with any sudoku puzzle, a small number of the grid squares are given a value from the beginning by encouraging the bacteria in these squares to differentiate and take on one of the four colors. The Tokyo team's sudoku-solving bacteria competed in the International Genetically Engineered Machine competition at the Massachusetts Institute of Technology last week."
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