Comments on: Sudoku http://joe.zawodny.com/index.php/2009/07/12/sudoku/ Observations Tue, 27 Jul 2010 20:02:30 -0700 http://wordpress.org/?v=2.8.4 hourly 1 By: fatima http://joe.zawodny.com/index.php/2009/07/12/sudoku/comment-page-1/#comment-351 fatima Wed, 02 Sep 2009 09:22:33 +0000 http://joe.zawodny.com/?p=443#comment-351 thanks! thanks!

]]> By: JMZ http://joe.zawodny.com/index.php/2009/07/12/sudoku/comment-page-1/#comment-343 JMZ Fri, 14 Aug 2009 22:27:23 +0000 http://joe.zawodny.com/?p=443#comment-343 I draw no distinction between left, right, top, or bottom adjacents. I occasionally note adjacents that span two 3x3 blocks. The situation you describe (multiple squares spanning two or three 3x3 blocks) I ignore. There is no point in trying to define such a complicated notation for that situation. As you solve the puzzle, it will eventually simplify into one of the notations I've already discussed. Not every number (1-9) in every 3x3 block can be "noted" unless the puzzle is trivial. Have fun. I draw no distinction between left, right, top, or bottom adjacents. I occasionally note adjacents that span two 3×3 blocks. The situation you describe (multiple squares spanning two or three 3×3 blocks) I ignore. There is no point in trying to define such a complicated notation for that situation. As you solve the puzzle, it will eventually simplify into one of the notations I’ve already discussed. Not every number (1-9) in every 3×3 block can be “noted” unless the puzzle is trivial.

Have fun.

]]> By: fatima http://joe.zawodny.com/index.php/2009/07/12/sudoku/comment-page-1/#comment-342 fatima Fri, 14 Aug 2009 18:19:49 +0000 http://joe.zawodny.com/?p=443#comment-342 hello, i like your notation through shapes. it's what i use too. i find the system of penciling in possible numbers too cumbersome. using shapes came naturally to me and i only discovered the numbers system recently when i tried to get some help with some shapes that have been plaguing me for a while. maybe you can help ... i have to coin two new terms to explain my predicament: using your idea of adjacents i add to it leftward adjacents and rightward adjacents. Leftward adjacents would be two blocks which include the center block of any row in a 3x3 square and the block immediately to the left of that block. Rightward adjacents are then simply the same configuration with the exception that the two blocks are the center block of the row of the 3x3square and the block immediately to the right of it. (the adjacent you have in your description above is a rightward adjacent. if the twos were moved one block to the left they would be leftward adjacents. hope this makes sense) now here's my problem ... i frequently come across a situation where in row of three 3x3squares i find that one number can go into the ends of a line in one square, into leftward adjacents of a line in another square and into rightward adjacents of a line in a third square. i think there may be a logical way to solve this and determine where the number would fall in each of these 3x3squaress, but i can't figure it out. any thoughts? hello,
i like your notation through shapes. it’s what i use too. i find the system of penciling in possible numbers too cumbersome. using shapes came naturally to me and i only discovered the numbers system recently when i tried to get some help with some shapes that have been plaguing me for a while. maybe you can help …

i have to coin two new terms to explain my predicament: using your idea of adjacents i add to it leftward adjacents and rightward adjacents. Leftward adjacents would be two blocks which include the center block of any row in a 3×3 square and the block immediately to the left of that block. Rightward adjacents are then simply the same configuration with the exception that the two blocks are the center block of the row of the 3×3square and the block immediately to the right of it. (the adjacent you have in your description above is a rightward adjacent. if the twos were moved one block to the left they would be leftward adjacents. hope this makes sense)

now here’s my problem … i frequently come across a situation where in row of three 3×3squares i find that one number can go into the ends of a line in one square, into leftward adjacents of a line in another square and into rightward adjacents of a line in a third square.

i think there may be a logical way to solve this and determine where the number would fall in each of these 3×3squaress, but i can’t figure it out.
any thoughts?

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