Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/games/lib/sudoku/boards/easy-2005-04-26.su
..2816..9 .6..7...2 .7.9...6. .4.2....1 2.......5 9....3.7. .9...8.2. 8...2..4. 6..5971.. 432816759 569374812 178952463 347285691 216749385 985163274 791438526 853621947 624597138
