Use resolving approaches: There are lots of Sophisticated solving techniques, like "naked pairs" or "hidden pairs," that will help you get rid of incorrect possibilities and allow it to be simpler to address the puzzle. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​... https://connerltzdf.verybigblog.com/26485368/getting-my-sudoku-hard-hard-sudoku-to-work