Friday 24 February 2017

Friday Puzzles #294

This one is fairly tricky too.  Enjoy!
   #335 Diagonal Sudoku – rated hard
All puzzles © Tom Collyer 2009-17.


  1. 15:34. I like these sudokus wherein a lot of --->if then scenarios need to be employed and thinking a few steps ahead to see a contradiction.The potential for learning and improving as a solver doing these is huge . Thoroughly engrossing and well done !

  2. Hi, thanks for the comment.

    I should say that whilst this puzzle is hard, it doesn't require any trial and error, or even "colouring" techniques that sometimes feel a bit like trial and error. The steps are hard to spot, but you shouldn't need anything more than box/line reduction and spotting the odd triple here and there.


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