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Thanks for sharing. Is the IB available to download?

Rakesh, Are you sure it is Sudoku? The link you shared goes to http://www.jnpc2010.jp/
Japan National Puzzle Championship 2010!

It is JNPC alright. But I think you guessed that it is "Japanese National Puzzle Championship", it actually stands for "Japanese Number Place Championship", and contains 25 sudokus. From what I can manage to grasp from the translation, IB is to be released on Feb 24th.

IB and PB available now...(in Japanese)

Attached find my attempt to glean the rules of the puzzles using a combination of reading the example solution, Google translate, and lots of thinking.

Attachments
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jnpc2010_inst_eng.txt (2KB - 35 downloads)

Chris,

Thanks so much for uploading this document. Will be of a lot of help.

Cheers,
Deb

I did not understand how to submit answers.

For questions 1-13 and 15-25, there shall be 4 numbers to be filled in the answer page. These will be marked as A,B,C and D. For question 14, 4 characters need to be filled. These will be marked as 1,2,3 and 4.

Some more examples appearing in JPNC that I created

Descriptive Pair Sudoku (#25)

DescriptivePairSudoku

How Many Consecutive (#23)

You can solve the puzzle online too. Click on Links below

DescriptivePairSudoku

How Many Consecutive

Can someone explain the 21st sudoku? I did not understand even after reading the translated instructions by Chris.

Rohan Rao - 2010-02-27 6:09 AM

Can someone explain the 21st sudoku? I did not understand even after reading the translated instructions by Chris.

In a row, if a cell has an even digit in its left and also an even digit on its right, the cell's digit is written outside the row.
In a column, if a cell has an even digit on its top and also an even digit on its bottom, the cell's digit is written outside the column.

basically even digits both ways.

Can someone confirm the start time of the championship in IST?
Is it 08:00? 09:00? 09:30?

19 puzzles solved for 371 points. Spent too much time solving poker, got totally lost in descriptive pair, and messed up symbol and dominoes. Not bad compared to my horrendous mock 14 performance today.