Indian Sudoku Championship - Mock Test 9

The 9th Mock Test in preparation to the Indian Sudoku Championship - 2009 was held on 1st February, 2009 from 14:30 - 17:15 IST (GMT + 5:30)
It was organised by Gaurav Korde.

Download Instruction Booklet
Download Puzzle Booklet 1
Password is eNJoyDrElaYRnd
Download Puzzle Booklet 2
Password is cOzRoUnd2iStoUgH

The list of sudokus that appeared in the test are:

Round 1: Relay (14:30 - 15:45 IST)
Relay 1
Classic Sudoku

Relay 2
1. Irregular Sudoku
2. Consecutive Sudoku
3. Diagonal Sudoku
4. Odd-Even Sudoku
5. Extra Region Sudoku

Round 2: Variations (16:00 - 17:15 IST)
1. All Odd/All Even Sudoku
2. Correction Sudoku
3. Even Sum Pair Sudoku
4. Fortress Sudoku
5. Group Sum Sudoku
6. Magic Square Sudoku
7. No Knight Step Sudoku
8. Orthogonal Difference Sudoku
9. Same Box Sudoku
10. XV Sudoku

Results

1. Jakub Ondrousek (Czech Republic) - 1339
2. Jan Mrozowski (Poland) - 1034
3. Rishi Puri (India) - 1015
4. Nikola Zivanovic (Serbia) - 820
5. Jakub Hrazdira (Czech Republic) - 739
6. Yuhei Kusui (Japan) - 730
6. Rohan Rao (India) - 730
8. Chen Cen (China) - 660
9. Marie Benediktova (Czech Republic) -659
10. Vincent Bertrand (Belgium) - 624

Complete Results

There were totally 33 participants.
Congrats to everyone!

Indian Sudoku Championship - Mock Test 8

The 8th Mock Test in preparation to the Indian Sudoku Championship - 2009 was held on 25th January, 2009 from 14.30 - 15.58 IST (GMT + 5:30)
It was organised by Nikola Zivanovic from Serbia.

Download the Instruction Booklet
Download the Puzzle Booklet
Password is blu7cljo

The list of sudokus that appeared in the test are:

1. 100 Sudoku
2. 3M Sudoku
3. Calculoku
4. Classic Sudoku
5. Consecutive Sudoku
6. Difference Sudoku
7. Fishbone Sudoku
8. Product Sudoku
9. Rustic Sudoku
10. Sum Around Sudoku
11. Sum Frame Sudoku

Results

1. Jan Mrozowski (Poland) - 106
2. Jakub Hrazdira (Czech Republic) - 84
3. Gaurav Korde (India) - 78
4. Rishi Puri (India) - 73
5. Rohan Rao (India) - 62
6. Jaipal Reddy (India) - 61
7. Chen Cen (China) - 54
8. Rakesh Rai (India) - 52
9. Minfang Lin (China) - 51
10. Davepdavep (USA) - 46

Complete Results

There were totally 27 participants.
Congrats to everyone!

Puzzle No.96

This is a Sum Frame Sudoku.

PUZZLE NO.96: SUM FRAME SUDOKU

SOLUTION:

Puzzle No.95

This is an Extra Region Sudoku

PUZZLE NO.95: EXTRA REGION SUDOKU


SOLUTION:

Puzzle No.94

This is a Classic Sudoku

PUZZLE NO.94: CLASSIC SUDOKU

SOLUTION:

Puzzle No.93

This is a Classic Sudoku made by Ritesh Gupta and Hitesh Gupta.

PUZZLE NO.93: CLASSIC SUDOKU

SOLUTION:

Puzzle No.92

This is a Product Frame Sudoku made by Ritesh Gupta and Hitesh Gupta.

PUZZLE NO.92: PRODUCT FRAME SUDOKU

SOLUTION:

Rules of 'Product Frame Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. Numbers in the outside frame equal the product of the first three numbers in the corresponding row or column in the given direction.

EXAMPLE:


UNIQUE SOLUTION:

Puzzle No.91

This is a Sum Frame Sudoku made by Ritesh Gupta and Hitesh Gupta.

PUZZLE NO.91: SUM FRAME SUDOKU

SOLUTION:

Puzzle No.90

This is a Skyscraper Sudoku

PUZZLE NO.90: SKYSCRAPER SUDOKU

SOLUTION:

Rules of 'Sudokuro'

Place numbers in the grid such that each row, column and thick-outlined region contain the numbers 1 to 9. The sum of the digits in each Across answer equals to the value given to the left, and the sum of the digits in each Down answer equals to the value given above.

EXAMPLE:

UNIQUE SOLUTION:

Rules of 'Ring Sudoku'

Place numbers in the grid such that each ring (innermost to outermost), each sector and each circle part bordered by thick lines contain the numbers 1 to 9.

EXAMPLE:


UNIQUE SOLUTION:

Rules of 'Quadruple Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. Each set of four small numbers in the intersection of two lines indicate the numbers that are in the four adjacent cells.

EXAMPLE:

UNIQUE SOLUTION:

Rules of 'Inequality Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. There are 'greater than' (>) and 'less than' (<) signs. The cell with the open end of the sign should be greater than the cell with the closed end of the sign.

EXAMPLE:

UNIQUE SOLUTION:

Sudokucup 1

The sudoku club Kabrňáci and SČHAK (the Czech Puzzlers and Crossworders Union) have started the unique online "sudokucup" tournament consisting of popular sudoku puzzles. In the tournament you can compare your results to the results of players all over the world. The sudokucup enables all sudoku players to play top puzzles in competition conditions without leaving home.

The 1st sudokucup was held on 17th January, 2009.

Download Instruction Booklet
Download Puzzle Booklet
Password is MG3BLBKACSZLXAC!

The list of sudokus that appeared in the 1st sudokucup are:

1. Classic Sudoku
2. GT Sudoku
3. Jigsaw Sudoku
4. Killer Sudoku
5. Kropki Sudoku
6. Mathdoku
7. Multi Sudoku
8. Pairs Sudoku
9. Quadruple Sudoku
10. Ring Sudoku
11. Skyscraper Sudoku
12. Sudokuro
13. Sum Sudoku
14. Untouchable Sudoku
15. Surprise Sudoku

Results

1. Jan Mrozowski (Poland) - 274
2. Jan Novotny (Czech Republic) - 247
3. Yuhei Kusui (Japan) - 227
4. Cornelia Gehrer-Weibel (Switzerland) - 209
5. Jakub Hrazdira (Czech Republic) - 204
5. Michael Ley (Germany) - 204
7. Gyimesi Zoltan (Hungary) - 199
8. Jason Zuffranieri (USA) - 194
9. Nikola Zivanovic (Serbia) - 193
10. Salih Alan (Turkey) - 188

Indian Participants

21. Amit Sowani (India) - 164
24. Rajesh Kumar (India) - 152
34. Rohan Rao (India) - 135
46. Gaurav Korde (India) - 123
46. Jaipal Reddy (India) - 123
96. Munira Lokhandwala (India) - 91
97. Murali Kakarla (India) - 90
101. Ritesh Gupta (India) - 87
105. Tejal Phatak (India) - 84
112. Hitesh Gupta (India) - 81

Complete Results

There were totally 328 participants.
Congrats to everyone!

Words from Karel Tesar:

The beginnings were innocent. They were the fan sudoku competitions on various servers, searching and devouring information on general preliminaries and sudoku competitions all over the world. By all means it was necessary to know languages or to try happiness and leap over language barrier. As such an event wasn’t in the Czech Republic, from my point of view in the big breeding place of sudoku and puzzle talents; there occurred the idea to change that. It wasn’t easy and it wasn’t overnight. Some ideas were organized, several people pulled together and the results of their endeavor can be called "sudokucup".
The first Sudokucup has just finished and I can say that at least in my opinion all the happenings have been really high-pitched. It was because the sudoku project, as it can be called, was coming into existence from the very beginning. Maybe it would be a long talk to describe how everything became, but I hope that you have liked our idea to organize an online competition that had attempted to address players in the whole world and that you will find some time to compete with Sudokucup in the future again.
I personally have reached a lot of valuable experiences and impulses what to do with the server and how to develop and improve that. However the server and the competition would not come into existence without the help of a lot of people.
Let me help them that they have dedicated their time and effort for you to enjoy solving sudoku as much as possible.Pre-solving and advice on the event matters have been made by Blanka Čáslavská, Martina a Tomáš Hanžlovi, Dan Marek, Petr VejchodaThe players Petra Čičová, Jakub Hrazdira, Michal Chrámecký, Jan Novotný, Jakub Ondroušek, Jana Tylová solved the practice puzzles and provided their times to comparison.The translations into various languages have been done by Aline Koch, Veronika Milátová, Frederique Rogeaux, Alena Veverková, Petra Voitová, Lumír Witoszek, Jana ZachováI also would like to thank the pages programmers and Aleš Marek who offered his help in the time it was required most (he has prepared the result for you). Thank you to all of you who helped to bring out the competition to your awareness and all the member of Kabrňáci sudoku club who helped as much as they could.
My greatest thanks belong to two persons:I wouldn’t write these lines and you would spend the previous weekend with another entertainment not to be good advice, calmness and support of an experienced organizer and a promoter of sudoku in the Czech Republic – Vítězslav Koudelka. I really appreciate his friendly encouragement and willingness to advise or give valuable experience.
And with all my heart I want to thank my girlfriend Peťka who was the person not only pre-solving all the puzzles, not only advising what to change or arrange, but she was the person who has tolerated in patience all troubles, all my heebie-jebbies and pernoctations, and who has gotten behind me.
Last but not least thanks belong to all of you who registered and played. Even the best tournament is nothing without players.Surely, we look forward to the future when you find some time to come again and to cope with others. Let me introduce some of our visions we would like to bring.Because of the first Sudokucup I put myself into the new position in the sudoku world – the position of an author. You can asses if I have been successful or not, but the variety is the beauty. That’s why we want to give some space to other authors who are willing to prepare good puzzles and to present them in the competition. Another project we are preparing is a three-member team competition. This idea is at the beginnings, but if you are interested in it, we will try to bring it.
To sum up our concepts and expectances for the future:
sudokucup will take place twice or three times a year (according to your responses in the discussion below and according to the second item)
we would like to ask authors who are willing to cooperate with us to contact me via email.
if you are interested we will try to prepare the tournament for a three-member teams
we would like to prepare new language editions – Spanish and Chinese ones, we have found sudoku fans who are able and willing to translate into these languages.
Once more thank you very much to all of you and wish you a lot of pleasant moments with sudoku and besides sudoku.

Great job by Karel Tesar!
Thank You!

Rules of 'Triple Sum Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. Each row is divided into 3 parts. The 1st part is a 4 digit number, the 2nd part (shaded) is a 3 digit number and the 3rd part is a 2 digit number. The sum of these three numbers is given outside the grid in the corresponding row.

EXAMPLE:

UNIQUE SOLUTION:

Rules of 'Kropki Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. If the absolute difference between two digits in neighbouring cells equals 1, then they're separated by a white dot. If the digit in a cell is half of the digit in a neighbouring cell, then they're separated by a black dot. The dot staying between '1' and '2' can have any of these dots.

EXAMPLE:


UNIQUE SOLUTION:

Puzzle No.89

This is a Loop Finder puzzle made by Deb Mohanty.

PUZZLE NO.89: LOOP FINDER

SOLUTION:

Puzzle No.88

This is a Fence puzzle made by Deb Mohanty.

PUZZLE NO.88: FENCE

SOLUTION:

Puzzle No.87

This is an Every Second Turn puzzle made by Deb Mohanty.

PUZZLE NO.87: EVERY SECOND TURN

SOLUTION:

Puzzle No.86

This is an Easy As ABC puzzle made by Deb Mohanty.

PUZZLE NO.86: EASY AS ABC (A~C)

SOLUTION:

Puzzle No.85

This is a Hitori puzzle made by Deb Mohanty.

PUZZLE NO.85: HITORI

SOLUTION:

Indian Sudoku Championship - Mock Test 7

The 7th Mock Test in preparation to the Indian Sudoku Championship - 2009 was held on 11th January, 2009 from 14.30 - 15.45 IST (GMT + 5:30)
It was organised by TTHsieh and Minfang Lin from China.

Download the Instruction Booklet
Download the Puzzle Booklet
Password is lucky2all

Only one type of sudoku appeared in the mock.
Classic Sudoku

Results

1. Marie Benediktova (Czech Republic) - 1260
2. Jan Mrozowski (Poland) - 1140
3. Rishi Puri (India) - 1120
4. Jakub Hrazdira (Czech Republic) - 870
5. Gaurav Korde (India) - 840
6. QKV (Czech Republic) - 800
7. Chen Cen (China) - 800
8. Karel Tesar (Czech Republic) - 640
9. Rohan Rao (India) - 560
10. Bariscakmak (Turkey) - 510

Complete Results

There were totally 34 participants.
Congrats to everyone!

Puzzle No.84

This is a Matches puzzle from the French Puzzle Championship - 2008.

PUZZLE NO.84: MATCHES

SOLUTION:

Puzzle No.83

This is a Masyu puzzle from the French Puzzle Championship - 2008.

PUZZLE NO.83: MASYU

SOLUTION:

Rules of 'Slalom'

Draw one diagonal inside every cell of the grid so that each number at a corner tells the number of diagonals it touches. There must be no loops (a closed, continuous line) formed by the diagonals on the grid.

EXAMPLE:

UNIQUE SOLUTION:

Rules of 'Different Neighbours'

Place numbers of the given range in the grid such that cells with the same numbers don’t touch each other, not even diagonally.

EXAMPLE: (1~4)


UNIQUE SOLUTION:

Rules of 'Hundred'

Some digits are given in each cell of the grid. Fill additional digits in required cells such that the sum of numbers in each row and each column equals to 100.

EXAMPLE:

UNIQUE SOLUTION:

Rules of 'Magnets'

The grid is made up of magnetic and nonmagnetic plates. Each magnetic plate has 2 halves: one positive (+) and one negative (-). Halves with the same polarity cannot touch each other vertically or horizontally. The numbers outside the grid indicate the number of magnetic halves with a particular polarity in each row/column.

EXAMPLE:

UNIQUE SOLUTION: