This is a 7 years old news, cool nonetheless. https://arstechnica.com/information-technology/2015/05/prime-minister-of-singapore-shares-his-c-code-for-sudoku-s

This is a 7 years old news, cool nonetheless. https://arstechnica.com/information-technology/2015/05/prime-minister-of-singapore-shares-his-c-code-for-sudoku-solver/ https://arstechnica.com/information-technology/2015/05/prime...