Sudoku2 app - Expert level

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Sudoku2 app - Expert level

Postby Bmn187 » Thu Jan 08, 2015 12:44 am

Hi everyone,

I've been having difficulties with fully solving puzzles in the expert level of the Sudoku2 app. I've googled advanced techniques but cant't spot any of them in the app's puzzles. What techniques am I not seeing here? Any help would be appreciated, especially if someone created visuals for the attaxhed pic too.

Thanks!
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Re: Sudoku2 app - Expert level

Postby JasonLion » Thu Jan 08, 2015 1:16 pm

There is a naked pair available in column six. After that I see an XY-Chain, and then singles to the end.
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Re: Sudoku2 app - Expert level

Postby Bmn187 » Thu Jan 08, 2015 4:37 pm

Ahhh thank you! It is the xy-chain technique I've been overlooking.
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