Puzzle No.154

This is a Roman Sudoku from the Polish Sudoku Championship - 2007.

PUZZLE NO.154: ROMAN SUDOKU

SOLUTION:

Puzzle No.153

This is an Irregular Sudoku from Sudokucup 1 made by Karel Tesar.

PUZZLE NO.153: IRREGULAR SUDOKU

SOLUTION:

Puzzle No.152

This is an Outside Sudoku from the Polish Sudoku Championship - 2007.

PUZZLE NO.152: OUTSIDE SUDOKU

SOLUTION:

Puzzle No.151

This is an Extra Region Sudoku from the Belarusian Puzzle Championship - 2008.

PUZZLE NO.151: EXTRA REGION SUDOKU

SOLUTION:

Puzzle No.150

Puzzle: Untouchable Sudoku
Author: Rohan Rao

EXAMPLE:


SOLUTION:

Oguz Atay Puzzle Contest 6

The 6th Oguz Atay Puzzle Contest was held on 27th June, 2009 from 14:30 - 17:00 GMT (20:00 - 22:30 IST).

Download Instruction Booklet
Download Puzzle Booklet

Results

1. Mehmet Murat Sevim (Turkey) - 166.85
2. Thomas Snyder (USA) - 157.7
3. Shinichi Aoki (Japan) - 138.46
4. Taro Arimatsu (Japan) - 133.5
5. Nikola Zivanovic (Serbia) 122.26
6. Hideaki Jo (Japan) - 116.46
7. Saikachi Takeya (Japan) - 108.42
8. Przemyslaw Debiak (Poland) - 106.71
9. Sebastian Matschke (Germany) - 106.71
10. Vlad Klyachin (Russia) - 94.5

Indian participants

12. Rohan Rao (India) - 78.8
26. Anurag Sahay (India) - 63.1
33. Rajesh Kumar (India) - 55.68
53. Puneet Goenka (India) - 28.38
61. Roshith Mohan (India) - 12.9

Complete Results

There were totally 66 participants.
Congrats to everyone!

US Puzzle Championship 2009

The US Puzzle Championship 2009 was held on 20th June, 2009 at 13:00 ET, 17:00 GMT (22:30 IST).

Results

1. Thomas Snyder (USA) - 360
2. Mehmet Murat Sevim (Turkey) - 310
3. Roger Barkan (USA) - 265
4. Hideaki Jo (Japan) - 262
5. Zack Butler (USA) - 260
6. Byron Calver (Canada) - 256
7. Wei-Hwa Huang (USA) - 249
8. Dan Katz (USA) - 242
9. Sebastiano Schillaci (Italy) - 230
10. Derek Kisman (Canada) - 220

Indian participants

56. Rajesh Kumar (India) - 143
71. Amit Sowani (India) - 130
112. Rakesh Rai (India) - 114
219. Rohan Rao (India) - 84
226. Anoop Varghese (India) - 80
429. Vivek Jain (India) - 45
512. Lakshminarayan Bobba (India) - 30
534. Sundaresan Sethuraman (India) - 25

There were totally 540 participants.
Congrats to everyone!

Sudokucup 2

The 2nd sudokucup tournament was held on 20th-21st June, 2009. It was prepared by Jan Novotny.

Download Instruction Booklet
Download Puzzle Booklet
Password is HN7ER&QAC21U?QW0

The list of sudokus that appeared in the championship are:

1. Anti-Knight Sudoku
2. Biathlon Sudoku
3. Classic Sudoku
4. Clock Faces Sudoku
5. Consecutive Sudoku
6. Diagonal Sudoku
7. Figure Sudoku
8. Irregular Dots Sudoku
9. Multiplication Table Sudoku
10. Neighbours Sudoku
11. Quadruple Sudoku
12. Sequence Sudoku
13. Triathlon Sudoku
14. Wrong Killer Sudoku
15. Surprise Sudoku

Results

1. Jan Mrozowski (Poland) - 300 (1:15)
2. Jakub Ondrousek (Czech Republic) - 300 (1:34)
3. Jason V. Zuffranieri (USA) - 300 (1:39)
4. Byron Calver (Canada) - 300 (1:43)
5. Nikola Zivanovic (Serbia) - 300 (1:45)
6. Michael Smit (Germany) - 300 (1:45)
7. Min-hyeong Jeong (South Korea) - 300 (1:47)
8. Yuhei Kusui (Japan) - 300 (1:48)
9. Bertrand Vincent (Belgium) - 300 (1:48)
10. Hideaki Jo (Japan) - 300 (1:48)
11. Lukasz Bozykowski (Poland) - 300 (1:52)
12. David McNeill (UK) - 300 (1:54)
13. Przemysław Debiak (Poland) - 300 (1:54)
14. Jana Tylova (Czech Republic) - 300 (1:59)
15. Minfang Lin (China) - 300 (2:00)

Indian participants

34. Gaurav Korde (India) - 244
42. Ritesh Gupta (India) - 225
46. Rohan Rao (India) - 224
53. Rishi Puri (India) - 204
58. Puneet Goenka (India) - 201
59. Rakesh Rai (India) - 201
84. Tejal Phatak (India) - 170
86. Himani Shah (India) - 167
102. Rajesh Kumar (India) - 152
123. Munira Lokhandwala (India) - 137

There were totally 281 participants.
Congrats to everyone!

Puzzle No.149

This is an Extra Region Sudoku from the World Sudoku Championship - 2009.

PUZZLE NO.149: EXTRA REGION SUDOKU

SOLUTION:

Puzzle No.148

This is a Diagonal Sudoku from the World Sudoku Championship - 2009.

PUZZLE NO.148: DIAGONAL SUDOKU

SOLUTION: