Sudoku Champs Practice Test - U10 & U12 has started Discuss
Sudoku Champs Practice Test - U15 & U18 has started Discuss
Article on World's Toughest Sudoku7 posts • Page 1 of 1 • 1
@ 2010-08-23 5:57 PM (#1306 - in reply to #1284) (#1306) Top

rakesh_rai




Posts: 774
500100100202020
Country : India

rakesh_rai posted @ 2010-08-23 5:57 PM

@ 2010-08-24 12:34 PM (#1310 - in reply to #1306) (#1310) Top

vopani



Posts: 739
50010010020
Country : India

vopani posted @ 2010-08-24 12:34 PM

Thanks guys...
@ 2010-08-25 1:31 PM (#1326 - in reply to #1284) (#1326) Top

Ours brun




Posts: 148
1002020
Country : France

Ours brun posted @ 2010-08-25 1:31 PM

Well, this puzzle was claimed to be "the toughest" several years ago ; things have changed now and there are lots of harder puzzles available. Anyway, finding a logical way to solve this one is a real challenge. Using guesswork, french player Yannick Meyapin solved it in 15/20 minutes during a competition.

Here is a puzzle which is theoretically even more challenging, with or without guesses :

. . . | . . . | . 3 9
. . . | . . 1 | . . 5
. . 3 | . 5 . | 8 . .
------+-------+------
. . 8 | . 9 . | . . 6
. 7 . | . . 2 | . . .
1 . . | 4 . . | . . .
------+-------+------
. . 9 | . 8 . | . 5 .
. 2 . | . . . | 6 . .
4 . . | 7 . . | . . .

(Golden Nugget, one of tarek's puzzles)
@ 2010-09-02 11:35 PM (#1445 - in reply to #1284) (#1445) Top

peridream



Posts: 1

Country : India

peridream posted @ 2010-09-02 11:35 PM

Well......I am not a very good sudoku solver....but dnt know how i solved this sudoku in around 13 minutes....used couple of guesses and it worked for me...LOL
Article on World's Toughest Sudoku7 posts • Page 1 of 1 • 1
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