Sudoku's Flaw

I enjoy puzzles like Sudoku. I use a method that employs logical thinking and use the marking method. Marking simplifies the need to keep track of what numbers are supposed to go into a certain square. The puzzles themselves are graded by how many numbers are initially in the squares. However, sometimes those puzzles are unsolvable when using this logical method and I count those puzzles as flawed.

Category:

Entertainment

Tags:

• sudoku
• flaw
• logical
• thinking
• methods
• matching
• pips
• unsolvable

[123octopus]

Despite what I said on your other video, I find your way of reasoning somehow interesting, if sometimes flawed. I suggest that you make your own Sudoku puzzles. I have often found that more stars = more guessing. If you could somehow make a five star Sudoku puzzle that is logically solvable, That would be really cool.

[Aeroslin]

The 5 star sudoku puzzles have little to do with guessing as I have completed many of those without resorting to guessing yet stumble on three stars which require a person to guess. The stars represent how many numbers are already put into play before you begin to solve the puzzle.

[lwalpole]

I came to the same conclusion.see my video response. Lloyd

[lwalpole]

Dear Donlass 2,the technique you describe IS guessing.

[puzzlelover11]

i love to solve sudoku puzzles. i go for the hard one coz it's very challenging. besides, sudoku.. i also love crosswords and logic puzzles

[Donlass2]

Sorry to break it to ya dude but I have done even the hardest of all sudoku and not once have I ever had to guess. The technique is of course once you get 2 squares with the same two numbers, thats the only two numbers that can go there and you can eliminate the possiblity of them going anywhere else in the box. This often times leaves me with a square that has only one possible option left.

[kavika13]

As Peter Griffin said, "You know what really grinds my gears?"

When I first got interested in Sudoku, I came to the same conclusion. I can concede that it might be interesting/a little challenging if they designed (since many newspapers hand-craft their puzzles) it to be solvable with a only a LITTLE bit of substitution work, and without having to put in another guess just to prove my first guess. Even so, if I wanted to play chess, I wouldn't be doing Sudoku ;)

[kunegochu]

you dont have to gues if you use the different techniques such as x wing.

[ASD128London]

Why don't you post up an example of an "unsolvable" puzzle and let people see if it can be solved without guessing?

[123octopus]

Thanks! So have you considered making Sudoku puzzles? I think a cube Sudoku would be cool. Not just a six sided Sudoku, but with all of the little squares inside all matching up diagonally & whatnot.