I'd like to see a standardized method for specifying the additional houses in a sudoku variant, akin to the puzzle specification, such as
..........6....2..9..8.7..4.3..2.........1.7........98....6......1......7.8....1.
to specfy
Code:
example
x x x | x x x | x x x
x 6 x | x x x | 2 x x
9 x x | 8 x 7 | x x 4
------+-------+-------
x 3 x | x 2 x | x x x
x x x | x x 1 | x 7 x
x x x | x x x | x 9 8
------+-------+-------
x x x | x 6 x | x x x
x x 1 | x x x | x x x
7 x 8 | x x x | x 1 x
I would propose something akin to that notation, say
1.......2.1.....2...1...2.....1.2.......3.......2.1.....2...1...2.....1.2.......1
which specifies
Code:
houses-for-diagnol
1 x x | x x x | x x 2
x 1 x | x x x | x 2 x
x x 1 | x x x | 2 x x
------+-------+-------
x x x | 1 x 2 | x x x
x x x | x 3 x | x x x
x x x | 2 x 1 | x x x
------+-------+-------
x x 2 | x x x | 1 x x
x 2 x | x x x | x 1 x
2 x x | x x x | x x 1
for the sudoku-X. We still need to specify that the main diagnol is both cells marked 1 and 3 and the main anti-diagnol is cells marked 2 and 3.
another, example, a simple "Windoku" can be given as:
..........111.222..111.222..111.222...........333.444..333.444..333.444..........
which maps out as
Code:
houses-for-Windoku
x x x | x x x | x x x
x 1 1 | 1 x 2 | 2 2 x
x 1 1 | 1 x 2 | 2 2 x
------+-------+-------
x 1 1 | 1 x 2 | 2 2 x
x x x | x x x | x x x
x 3 3 | 3 x 4 | 4 4 x
------+-------+-------
x 3 3 | 3 x 4 | 4 4 x
x 3 3 | 3 x 4 | 4 4 x
x x x | x x x | x x x