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Christmas Contest 2009

A contest during the festival of Christmas was held on 26th December, 2009 from 16:00 - 17:40 GMT (21:30 - 23:10 IST)

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Password is new10year

Results

1. Hideaki Jo (Japan) - 820
2. Jan Mrozowski (Poland) - 720
3. Taro Arimatsu (Japan) - 660
4. Takeshi Kawasaki (Japan) - 590
5. Nikola Zivanovic (Serbia) - 580
6. Yuka Sugimura (Japan) - 550
7. Umiu C (Japan) - 510
8. Masashi Sakata (Japan) - 500
9. Ivan Laptiev (Russia) - 485
10. Marko Obradovic (Serbia) - 450

Indian participants

13. Rohan Rao (India) - 370

Complete Results

There were totally 27 participants.
Congrats to everyone!

Puzzle No.254

This is a Toroidal Sudoku from the Indian Sudoku Championship - 2009.

PUZZLE NO.254: TOROIDAL SUDOKU (1~8)


SOLUTION:

Puzzle No.253

This is a Classic Sudoku from the Indian Sudoku Championship - 2009.

PUZZLE NO.253: CLASSIC SUDOKU


SOLUTION:

Forsmarts 7th Anniversary Online Contest

The 7th anniversary of the Forsmarts Online Contest was held on 5th December, 2009 at 16:00 - 18:00 GMT (21.30 - 23:30 IST).

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Password is fs7watRfa

Results

1. Hideake Jo (Japan) - 605
2. Thomas Snyder (USA) - 500
3. Nikola Zivanovic (Serbia) - 465
4. Przemyslaw Debiak (Poland) - 453
5. Rick Uppelschoten (Netherland) - 450
6. Jakub Hrazdira (Czech Republic) - 410
7. Branko Ceranic (Serbia) - 406
8. Vlad Klyachin (Russia) - 355
9. Sebastian Matschke (Germany) - 345
10. Alexey Kravchenko (Belarus) - 330

Indian participants

25. Rohan Rao (India) - 195

Complete Results

There were totally 37 participants.
Congrats to everyone!

Puzzle No.249

Puzzle: Along The Lines
Source: Indian Puzzle Championship 2008

PUZZLE NO.249: ALONG THE LINES


SOLUTION:

Puzzle No.248

This is a Domino Hunt puzzle from the Indian Puzzle Championship - 2008.

PUZZLE NO.247: DOMINO HUNT (0~6)


SOLUTION:

Puzzle No.247

This is a Fence puzzle from the Indian Puzzle Championship - 2008.

PUZZLE NO.247: FENCE


SOLUTION:

Puzzle No.246

This is an Every Second Turn puzzle from the Indian Puzzle Championship - 2008.

PUZZLE NO.246: EVERY SECOND TURN


SOLUTION:

Puzzle No.245

This is a Kropki puzzle from the Indian Puzzle Championship - 2008.

PUZZLE NO.245: KROPKI (1~8)


SOLUTION:

Puzzle No.244

This is a Minesweeper puzzle from the Indian Puzzle Championship - 2008.

PUZZLE NO.244: MINESWEEPER (24 Mines)


SOLUTION:

Puzzle No.243

Puzzle: Sequence Sudoku
Author: Rohan Rao

PUZZLE NO.243: SEQUENCE SUDOKU


SOLUTION:

Puzzle No.242

Puzzle: Arrows
Source: Indian Puzzle Championship 2008

PUZZLE NO.242: ARROWS


SOLUTION:

Puzzle No.241

Puzzle: Consecutive Sudoku
Author: Rohan Rao

PUZZLE NO. 241: CONSECUTIVE SUDOKU


SOLUTION:

Sudoku Variations Contest

A contest was held from 14th-22nd November, 2009 by Jiri Hrdina.

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Results

1. Tomoaki Tokunaga (Japan) - 102
2. Anatoliy Kazmerchuk (Ukraine) - 98.5
3. Vasiliy Ilyuhin (Russia) - 97
4. Alexander Shkolnikov (Ukraine) - 93
5. Alberto Fabris (Italy) - 91
6. Taro Arimatsu (Japan) - 90
7. Dmitry Litvinenko (Russia) - 86.5
8. Nikola Zivanovic (Serbia) - 86
9. Elena Rumina (Russia) - 85
10. Branko Ceranic (Serbia) - 81.5
10. Jan Mrozowski (Poland) - 81.5
10. Daisuke Takei (Japan) - 81.5

Indian participants

28. Rohan Rao (India) - 67
29. Rakesh Rai (India) - 66
45. Tejal Phatak (India) - 37
49. Shanta Murthy (India) - 27
51. Neeraj Mehrotra (India) - 21

Complete Results


There were totally 56 participants.
Congrats to everyone!

Puzzle No.240

Puzzle: No Even Neighbours Sudoku
Author: Tejal Phatak

PUZZLE NO.240


SOLUTION:

Rules of 'No Even Neighbours Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. Even numbers cannot be adjacent to each other.

This sudoku variation has been created by Tejal Phatak and Rohan Rao.

EXAMPLE:


UNIQUE SOLUTION:

Indian Puzzle Championship 2009

Indian Puzzle Championship 2009
All resident Indian nationals, irrespective of age, can participate in Indian Puzzle Championship. The Championship was an online test on October 4th, 2009. The puzzle-solving skills of contestants was tested using different puzzle variations which appear in the WPCs. Top rankers at the Indian Puzzle Championship will be eligible to represent India at the World Puzzle Championship to be held in Antalya, Turkey in November 2009.

Rules and Regulations
Open for All Indian and Foreign Nationals. Only Participants of Indian Origin will be considered for the Indian Puzzle Team to represent India at the WPC. Ranking will be done on the basis of total score. Ties will be broken using the following rules in order:
Fewest number of incorrect answers (blank answers are ignored)
Earliest time stamp

External help of any kind is not permitted. This means no assistance of any kind from any other person, also any books, calculators, computers or tools other than the items explicitly permitted. Writing instruments of any shape or design, erasers, rulers and paper are allowed. All scores are subject to review compliance for rules. The organizers reserve the right to disqualify any contestant if in their sole judgment they believe that the rules have been violated.

Championship Timing
The Championship was held from 14:00 hrs IST (08:30GMT). It was of 2.5 hours.

Official Website: Logic Masters India

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Password is cU4bIPunEv
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The list of puzzles that appeared in the championship are:

1. Trid
2. Polygraph
3. 4x4 Minesweeper
4. Comet
5. Ikebana
6. Word Search
7. Mirror Image
8. Dominos
9. Magnets
10. Missing Digit Kakuro
11. Direct Turn Loop
12. No Four In A Row
13. Easy As ABCD
14. Ripple Effect
15. Sparse Skyscraper
16. Tiger In The Woods
17. Classic Sudoku
18. Kropki Sudoku
19. Hitori
20. Mastermind
21. Spiral Galaxies
22. Elastic Bands
23. Triangle Count
24. LMI Cut
25. Vista

Results

1. Rajesh Kumar - 700
2. Rohan Rao - 670
3. Puneet Goenka - 570
4. Rakesh Rai - 500
5. Jaipal Reddy - 495
6. Himanshu Mittal - 495
7. Gaurav Korde - 460
8. Harmeet Singh - 440
9. Tejal Phatak - 335
10. Aakash Doulani - 230

Complete Results

There were totally 33 participants.
Congrats to everyone!

Oguz Atay Puzzle Contest 9

The 9th Oguz Atay Puzzle Contest was held on 26th September, 2009 from 14:30 - 17:00 GMT (20:00 - 22:30 IST).

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Results

1. Florian Kirch (Germany) - 145.1
2. Mehmet Murat Sevim (Turkey) - 142.7
3. Hideaki Jo (Japan) - 136.44
4. Ulrich Voigt (Germany) - 133.88
5. Lukasz Bozykowski (Poland) - 127.24
6. Peter Hudak (Slovakia) - 125.44
7. Przemyslaw Debiak (Poland) - 121.7
8. Nikola Zivanovic (Serbia) - 114.98
9. Philipp Weiß (Germany) - 113.16
10. Taro Arimatsu (Japan) - 111.6

Indian participants

31. Rohan Rao (India) - 59
38. Rajesh Kumar (India) - 49.52
47. Puneet Goenka (India) - 35.6
70. Srikanth Birudavolu (India) - 7.6

Complete Results

There were totally 73 participants.
Congrats to everyone!

September 2009 Contest

A contest was held from 11th-19th September by Riad Khanmagomedov.

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Results

1. Zoran Tanasic (Serbia) - 101
1. Christian Romon (France) - 101
1. Evgeny Bekishev (Russia) - 101
1. Sergey Buhanevich (Russia) - 101
5. Alexander Shkolnikov (Ukraine) - 100
6. Jiri Hrdina (Czech Republic) - 98
6. Vlad Klyachin (Russia) - 98
8. Stefano Forcolin (Italy) - 95
8. Hideaki Jo (Japan) - 95
8. Cedomir Milanovic (Serbia) - 95

Indian participants

16. Rohan Rao (India) - 86
20. Rakesh Rai (India) - 83
53. Tejal Phatak (India) - 39
59. Shanta Murthy (India) - 10

Complete Results

There were totally 65 participants.
Congrats to everyone!

Oguz Atay Puzzle Contest 8

The 8th Oguz Atay Puzzle Contest was held on 15th August, 2009 from 14:30 - 17:00 GMT (20:00 - 22:30 IST).

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Results

1. Ulrich Voigt (Germany) - 161.9
2. Thomas Snyder (USA) - 153.34
3. Hideaki Jo (Japan) - 135.98
4. Lukasz Bozykowski (Poland) - 123.38
5. Philipp Weiß (Germany) - 118
6. Nikola Zivanovic (Serbia) - 117.18
7. Byron Calver (Canada) - 110.9
8. Peter Hudak (Slovakia) - 108
9. Shinichi Aoki (Japan) - 103.66
10. Przemyslaw Debiak (Poland) - 103.5

Indian participants

35. Rakesh Rai (India) - 41.6

Complete Results

There were totally 59 participants.
Congrats to everyone!

Contest for Best Logic Innovative Puzzle

Serbian Puzzle Association held a contest for best logic innovative puzzle. The contest ended on 1st of September 2009. The winner receives 50 euro prize.

Read Full Information.
For queries, contact contact@puzzleserbia.com.

I was the guest referee. I thank Nikola Zivanovic for giving me this opportunity.
There were really nice puzzles by the participants.

Results

1. Fleat In Fenced Octopus (Dragan Tolomanoski) - 38
2. Hexa Briquet (Cedomir Milanovic) - 29
3. Labyrinth Sudoku (Jiri Hrdina) - 26
4. Almost There (Anurag Sahay) - 19
5. Chaos (Volkan Dilber) - 17
6. Arrow Path (Jiri Hrdina) - 15
7. Roman Skyscrapers (Dragan Tolomanoski) - 10
8. Pentawords (Cedomir Milanovic) - 9
9. Roofs (Salih Alan) - 9
10. Knights Loop Sudoku (Rakhel Kumar Parida) - 8

Indian participants

4. Almost There (Anurag Sahay) - 19
10. Knights Loop Sudoku (Rakhel Kumar Parida) - 8
11. Burroshima (Anurag Sahay) - 8
12. Network (Rajesh Kumar) - 6
12. Double Skyscrapers (Rajesh Kumar) - 6
15. Heavy Top Skyscrapers (Rajesh Kumar) - 5
16. Minesweepers In Loop (Rajesh Kumar) - 4
17. Palindrome ABCD End View (Rajesh Kumar) - 2
17. Corral 2009 (Anurag Sahay) - 2

Complete Results

There were totally 26 puzzles by 9 participants.
Congrats to everyone!

Puzzles

1. Fleat In Fenced Octopus (Dragan Tolomanoski) - 38
Connect some dots with one single line in such a way that you get the shape of an octopus which takes squares in every row and column. Numbers inside the grid represents all fields which have the same numbers of fence that surround them and the neighbouring fields in which octopus is (including numbered field). Body of octopus never takes 2x2 area After that, put standard fleat in the octopus, in such a way that ships dont touch each other, not even diagonally, if the numbers outside the grid represent the total of ship segments in belonging direction. Ships can take fields with number, too.


Solution:

This was undoubtedly the best puzzle of the contest as two out of the three judges gave 15 points, while the 3rd judge gave 8 points.

Puzzle No.237

This is a Toroidal Sudoku from the Japanese Sudoku Championship - 2007.

PUZZLE NO.237: TOROIDAL SUDOKU (1~7)


SOLUTION:

Puzzle No.236

This is a Toroidal Sudoku.

PUZZLE NO.236: TOROIDAL SUDOKU (1~7)


SOLUTION:

Rules of 'Toroidal Sudoku'

Place numbers in the grid such that each row, column and thick-outlined region contain the numbers 1 to 9. Some of the outlined regions will wrap between the top and bottom edges, and/or the left and right edges of the grid.

EXAMPLE:


UNIQUE SOLUTION:

Puzzle No.235

This is a Magnets puzzle from the Indian Puzzle Championship - 2008.

PUZZLE NO.235: MAGNETS


SOLUTION:

Puzzle No.234

This is a Buttons puzzle from the India Puzzle Championship - 2008.

PUZZLE NO.234: BUTTONS


SOLUTION:

Rules of 'Buttons'

Each button can either be white or black. Pressing a button causes change of colour for the button itself and all horizontally and vertically adjacent buttons. Press six different buttons such that all the buttons in the grid become white.

EXAMPLE:


UNIQUE SOLUTION: