The New Sudoku Players' Forum

[urhegyi]

It was hard to find a human solvable example with the extra regions containing no clues.
But finally...
example1

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example2

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[urhegyi]

A windoku-X with all extra regions containing no clues.

[urhegyi]

A few human solvable windoku-x with no clues in extra regions:

Code: Select all

.83..296.........1........32.........................53........9.........214..57. ED=2.9/2.8/2.6
.83..296.........1........32.........................53........6.........412..75. ED=3.4/2.8/2.6
.83..296.........1........32.........................53........9.........217..54. ED=2.9/2.8/2.6
.83..296.........1........32.........................53........6.........712..45. ED=3.4/2.8/2.6
.53..829.........5........68.........................81........5.........927..65. ED=6.6/1.5/1.5
.53..829.........5........68.........................84........5.........927..65. ED=6.6/1.5/1.5
.53..824.........5........68.........................81........5.........427..65. ED=6.6/1.5/1.5
.53..824.........5........68.........................89........5.........427..65. ED=6.6/1.5/1.5