Sudoku Grandmaster

The 4th Philippine Sudoku Super Challenge finals was held at the end of last month. The winner of the Grandmaster category was Sarah Jane Cua, a 15-year-old high school student at

the Pangasinan Universal Institute. The first prize was 60,000 pesos, which converts to about 1,285 USD.

Sarah have been competing in many other sudoku events and have also won the 2008 Brand’s Asia-Pacific Sudoku Championships in Singapore.

That´s a good start of the sudoku year for her. Congrats and god luck in future events!

Sudoku master

Sudoku cheater disqualified.

Yes, it is actually final now that the 3rd place holder of the 2009 Philadelphia Inquirer National Sudoku Championship have been disqualified.

After investigations Eugene Varshavsky of Lawrenceville, N.J was found guilty of cheating. He had to return the $3,000 prize money, which is now awarded to Chris Narrikkattu of New York City.

I think we are likely to see rule changes for the next Sudoku Championship and I hope same situation doesn´t comes up again.

Sudooku cheater?

It appears that the thrid place holder of the 2009 Sudoku National Championships will be retested as the officials of the tournament suspect him of cheating. Officials think electronic devices might have been used as tools for cheating during the tournament.

A chess player thinks that the suspected cheater might be the same person that also was suspected of cheating during the Chess World Open in 2006. Apparently he recognizes the player which at the time also played in a hooded sweater.

I hope everything turns out to the better on this story.

Sudoku tournament cheating?

According to The Philadelphia Inquirer, officials at the recent 2009 Sudoku Nationals are investigating suspicions of cheating.
They suspect the third-place holder of cheating. Flags were raised when the contestor could not complete an “easy” sudoku puzzle in the initial stage of the competition. The suspect was playing with a hooded sweater and perhaps the officials suspect that he had help from the outside. It seem like headphones were allowed in the tournament.
Lets hope it is all a misunderstanding.

You can read the full Sudoku article here.

2009 Sudoku Nationals Results

We can announce that the winner of the U.S Sudoku Championship was Tammy McLeod of Los Angeles, California. Mc Leod solved the advanced puzzle in a time of 7 mintues and 41 seconds and took home the cash prize of $10,000. As the winner of the tournament she also earned a spot in the U.S World Sudoku Team.

Winner in the beginner divsion was Natan Tsyrulnik of Shelton, Connecticut, and took home $1,000. Davis Borucki of Columbia, South Carolina, took the first spot in the intermediate division was also a happy winner to the $3,000 awarded.

See the video from the event:

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2009 Sudoku National Championship

Philadelphia_skylineIt is time again for the 2009 Sudoku National Championships. It will take place Oct. 24 at the Pennsylvania Convention Center in Philadelphia. This is the largest Sudoku competition in the U.S. Hosting the event for the third time is the Philadelphia Inquirer.

$25,000 in cash prizes will be awarded, as well as the opportunity to represent the United States at the 2010 World Sudoku Championship in Philadelphia.

Cash prizes are broken down accordingly:

Top winner of each level will receive an iPod Touch, courtesy of Hudson Entertainment!


  • First place – $10,000
  • Second place – $4,000
  • Third place – $3,000


  • First place – $3,000
  • Second place – $2,000
  • Third place – $1,500


  • First place – $1,000
  • Second place – $500
  • Third place – $300

We wish good luck to everyone participating in the event.