HoDoKu Solving Technique Index: Example for "Unique Rectangle Type 2"
Original sudoku:
.6.5..2.11.........239....664...........27.9..52....8........6...1..59..5...7.1..
Use the following line if you want to load the sudoku in HoDoKu:
:0601:8:+46+95..2+711+8+5+7+6+2+4+3+9+7239..+8+5664+7+8+5+9+3+1+2+3+1+8+427+69+5+952..+6+78+4..+4.+9.+56...1+6.59..5+9+6.7.1..::899:
The following representation can be pasted in most Sudoku programs:
.-----------.---------------.------------. | 4 6 9 | 5 38 38 | 2 7 1 | | 1 8 5 | 7 6 2 | 4 3 9 | | 7 2 3 | 9 14 14 | 8 5 6 | :-----------+---------------+------------: | 6 4 7 | 8 5 9 | 3 1 2 | | 3 1 8 | 4 2 7 | 6 9 5 | | 9 5 2 | 13 13 6 | 7 8 4 | :-----------+---------------+------------: | 28 37 4 | 123 9 138 | 5 6 378 | | 28 37 1 | 6 348 5 | 9 24 378 | | 5 9 6 | 23 7 348 | 1 24 38 | '-----------'---------------'------------'
Representation of the step:
.------------.---------------.-------------. | 4 6 9 | 5 38 38 | 2 7 1 | | 1 8 5 | 7 6 2 | 4 3 9 | | 7 2 3 | 9 14 14 | 8 5 6 | :------------+---------------+-------------: | 6 4 7 | 8 5 9 | 3 1 2 | | 3 1 8 | 4 2 7 | 6 9 5 | | 9 5 2 | 13 13 6 | 7 8 4 | :------------+---------------+-------------: | 28 *37 4 | 123 9 138 | 5 6 *378 | | 28 *37 1 | 6 348 5 | 9 24 *378 | | 5 9 6 | 23 7 348 | 1 24 3-8 | '------------'---------------'-------------' Uniqueness Test 2: 3/7 in r7c29,r8c29 => r9c9<>8
Copyright © 2008-12 by Bernhard Hobiger
All material on this page is licensed under the GNU FDLv1.3.