The New Sudoku Players' Forum

[urhegyi]

I did some experiments with a modified form of windoku which has four extra regions and also 5 hidden regions. Some time ago I discovered that this variant can be solved as JS and also as JSB. When you omit the normal 9 regions it complicates solving but leads to the same solution. After optimalisation of the generating process I found an example where both JS and JSB rating are still human solvable and very interesting to compare both solvepaths.
As a JS:

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..8...6..25..6..18.6.....7..........4.......9..........8.....9.52..4..61..1...4.. 122211333122211444122211444555666444555666333777666333777889998777889998555889998 ED=6.6/1.2/1.2

The simpler JSB:

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..8...6..25..6..18.6.....7..........4.......9..........8.....9.52..4..61..1...4.. 122211333122211444122211444555666444555666333777666333777889998777889998555889998 ED=3.4/1.2/1.2

a few more examples:

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.......632......7..96.....48.........6.........1..6.......2...8......19........4. 122211333122211444122211444555666444555666333777666333777889998777889998555889998 ED=4.2/1.2/1.2
21..7....54.......3..5.19..........4..5..42..6..8.....8...9....7....36..4.....8.. 122211333122211444122211444555666444555666333777666333777889998777889998555889998 ED=4.2/1.2/1.2
....32.....3.164.....4.........4.6....7...94.54.......1.....8...36.9............3 122211333122211444122211444555666444555666333777666333777889998777889998555889998 ED=6.5/1.2/1.2