tag:blogger.com,1999:blog-8283950071005526162.post3419726763351373486..comments2023-12-09T13:25:54.553+01:00Comments on Para's Puzzle Site: Daily League Sudoku #6: Quad Second SudokuParahttp://www.blogger.com/profile/02367804879917808922noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-8283950071005526162.post-83510711397153983542013-03-13T08:47:34.277+01:002013-03-13T08:47:34.277+01:00In that situation only 9511 would be a valid digit...In that situation only 9511 would be a valid digit combination. With 9951 5 would be the third highest digit. When 2 equal for first, the next digit is third.Parahttps://www.blogger.com/profile/02367804879917808922noreply@blogger.comtag:blogger.com,1999:blog-8283950071005526162.post-71767983950089895392013-03-13T02:04:15.730+01:002013-03-13T02:04:15.730+01:00I don't think I completely understand the quad...I don't think I completely understand the quad rule. If four such squares contain only the three values 1, 5, and 9, then of course the 5 appears only once, but does 9?Anonymousnoreply@blogger.com