The New Sudoku Players' Forum

[jzk222]

I do pretty well on many, but this is a 'tough' one and I'd like to know the strategy to continue to solve this puzzle, not just getting the answer - which I can look up in the back of this book. Here's where I'm stuck...

926 / 814 / 573
357 / XX6 / 814
814 / X3X / XX9
X49/ 1X8 / 73X
X3X / XXX / X8X
X85 / 6X3/ 94X
493 / X8X / XX7
568 / XXX / 39X
X7X / 369 / 458

[emm]

It’s hard to know exactly how far you’ve got, jzk, but do you have a triple 25, 27, 257 in box 5? Then look for hidden singles.

If these terms are not familiar - click here .