I have just told by someone that I used the YZ method two times to get the solution is not necessary . He suggested the following setting with a bit bigger Yellow Zone to solve the puzzle. YZ method on The Original Puzzle by Eman : +----------+-----------------+--------------+ | 3 1 8 | 59 259 25 | 4 7 6 | | 5 4 9 | 678 67 68 | 2 3 1 | | 6 7 2 | 13by Koala - Sudoku Xtra Discussion Forum
Eman and Naughty, Just like you, I also prefer pure logic approaches. Please have a look at the method I use to solve the puzzle mentioned by Eman . Do you accept this as a logic approach? As I don't see this method can fit in any named category available, I call it YZ (stands for YELLOW ZONE). The method is as follows: First round YZ method on The Original Puzzle by Eman Set a Yellowby Koala - Sudoku Xtra Discussion Forum
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