The aim of the puzzle is to enter a symbol or numeral from 1 through 9 in each cell of a grid, most frequently a 9x9 grid made up of 3x3 subgrids (called 'regions'), starting with various symbols or numerals given in some cells (the 'givens'). Each row, column and region must contain only one instance of each symbol or numeral (Source &lt;http://en.wikipedia.org/wiki/Sudokugt;).
Is an t-amas aig an tòimhseachan seo gun cuir thu samhla no àireamh eadar 1 is 9 a-steach anns gach cealla a’ ghrioda. Mar as trice, bidh griod 9x9 ann a tha dèanta de fo-ghriodan 3x3 (ris an canar “roinnean”) is tòisichidh tu le samhlaidhean no àireamhan a chaidh a thoirt dhut ann an cuid a cheallan (an “riatanas”). Chan fhaod ach aon lethbhreac aig gach samhla no àireamh a bhith anns gach ràgh, colbh no roinn (Tùs: &lt;http://en.wikipedia.org/wiki/Sudokugt;).