## BSC

Sudoku puzzles, off-site games and other resources on the Internet

### Re: Watch Amazing Blindfold Sudoku Solving Video

hmmmm
Last edited by basscom4life on Wed Apr 27, 2016 10:48 pm, edited 1 time in total.
basscom4life

Posts: 16
Joined: 07 October 2015

### Re: Watch Amazing Blindfold Sudoku Solving Video

Continued self promotion without participating in the forum (ie ignoring the questions asked), and appearing to lie about your identity (presumably you are the man in the video, as you originally stated and then edited out) is likely to result in you account being banned.

Posts: 85
Joined: 17 April 2010
Location: Silver Spring, MD, USA

### Re: Watch Amazing Blindfold Sudoku Solving Video

Here is something of medium difficulty:
Code: Select all
`1.736.2.......9...9..1..5.......8.1.6.1...9.2.4.9.......2..3..5...4.......8.714.6`

And if you want a real challenge, try the Easter Monster:
Code: Select all
`1.......2.9.4...5...6...7...5.9.3.......7.......85..4.7.....6...3...9.8...2.....1`

But a video like the previous one doesn't prove anything. As presented in the video, the puzzle could easily have been solved with a program in advance and the solution memorized.

JasonLion
2017 Supporter

Posts: 641
Joined: 25 October 2007
Location: Silver Spring, MD, USA

### Re: Watch Amazing Blindfold Sudoku Solving Video

i dont understand ur codes, why not use the previous format
basscom4life

Posts: 16
Joined: 07 October 2015

### Re: Watch Amazing Blindfold Sudoku Solving Video

basscom4life wrote:i dont understand ur codes, why not use the previous format

The format simply gives the clues for each of the cells from 1 through 81, numbered from left to right, top to bottom. Dots represent cells with no clue given. Here's the first of the puzzles Jason posted:

Code: Select all
` *-----------* |1.7|36.|2..| |...|..9|...| |9..|1..|5..| |---+---+---| |...|..8|.1.| |6.1|...|9.2| |.4.|9..|...| |---+---+---| |..2|..3|..5| |...|4..|...| |..8|.71|4.6| *-----------*`
Steve

SteveG48
2019 Supporter

Posts: 3084
Joined: 08 November 2013
Location: Orlando, Florida

### Re: Watch Amazing Blindfold Sudoku Solving Video

I have solved ur puzzle, however it will take me about 10 minutes to complete it with eyes closed.
Last edited by basscom4life on Wed Apr 27, 2016 10:50 pm, edited 1 time in total.
basscom4life

Posts: 16
Joined: 07 October 2015

### Re: Watch Amazing Blindfold Sudoku Solving Video

When you post a reply, below the area where you type in your reply, there are two tabs (Options and Upload attachment). If you pick the second tab (Upload attachment) it will allow you to attach a picture. However, the maximum size (in bytes) of the picture is fairly limited. In most cases you will need to reduce the image file size before uploading.

JasonLion
2017 Supporter

Posts: 641
Joined: 25 October 2007
Location: Silver Spring, MD, USA

### Re: Watch Amazing Blindfold Sudoku Solving Video

1. A new Sudoku solving technique allows for sudoku puzzles to be solved even without looking at the game board as demonstrated in this video.....

2. Give the guy some credit, he's doing the solving in his brain.

3. There are many ways to solve a sudoku puzzle, this is very likely a new technique. i love what he does and i will like to learn his technique.

Now that basscom4life has told us he is the solver, all this is clearly flim flam. It's not the puzzle being solved blindfolded in the video but the solution being recalled.

For the puzzle shown this isn't difficult
123 879 654
456 213 987
789 546 321

564 321 798
897 654 132
231 987 465

978 465 213
312 798 546
645 132 879
Note that the same triplets of digits occupy the rows in the boxes and likewise in the columns. It is a version of the 'Most Canonical' Sudoku grid where the digits follow a 'rope' pattern in Braid Analysis terminology. When 'braid' patterns exist two digits repeat together in one diagonal direction and the third digit repeats in the other diagonal direction. By memorising these patterns across and down the grid the contents of any cell can be worked out mentally.

Braid Analysis alone will only solve the simplest of puzzles though so it's not a complete solving technique.
David P Bird
2010 Supporter

Posts: 1043
Joined: 16 September 2008
Location: Middle England

### Re: Watch Amazing Blindfold Sudoku Solving Video

@Bird, i clearly understand your analysis but i bet you even the smartest and sharpest memories cannot randomly provide those solutions by memorizing those patterns and recalling them in about 10 minutes like i have done. I challenge you to give it a try.
Last edited by basscom4life on Wed Apr 27, 2016 10:55 pm, edited 1 time in total.
basscom4life

Posts: 16
Joined: 07 October 2015

### Re: Watch Amazing Blindfold Sudoku Solving Video

magic code 1_001.png
Last edited by basscom4life on Wed Apr 27, 2016 10:55 pm, edited 1 time in total.
basscom4life

Posts: 16
Joined: 07 October 2015

### Re: Watch Amazing Blindfold Sudoku Solving Video

magic code 3_001.png

Another example here
basscom4life

Posts: 16
Joined: 07 October 2015

### Re: Watch Amazing Blindfold Sudoku Solving Video

basscom4life wrote:
magic code 1_001.png

If i can write a code from a sudoku puzzle grid and use that code to solve it, isnt that a solving technique?

If you can write the code without first solving the puzzle, yes. Otherwise it's just a technique to recall the solution you already have. Also, if you say that you're solving the puzzle blindfolded, then you would have to derive the codes blindfolded after first memorizing the clues.
Steve

SteveG48
2019 Supporter

Posts: 3084
Joined: 08 November 2013
Location: Orlando, Florida

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