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Indian Sudoku Championship 2010 - Finals

The top 40 from the online rounds held on 3rd and 9th January and the top 30 from the offline preliminary round held on 23rd January qualified for the finals of the Indian Sudoku Championship 2010 at Techfest, IIT-B.



Round 1: Linked Classics - 35 mins - 350 points + Time Bonus
Download Puzzle Booklet
Download Solution Booklet
The puzzles were quite easy (compared to Deb's standards ;-) ). I was the first to complete it and I did in 20mins with a 15min time bonus followed closely by Rishi Puri who completed just one minute later. Many others completed the puzzles and got time bonuses too.

Round 2: Samurai Sudoku - 45 mins - 450 points + Time Bonus
Download Puzzle Booklet
Download Solution Booklet
A typical Deb-type puzzle. It was too tough to do within 45mins. Rishi again did a phenomenal job by completing the sudoku within 45mins. No one else completed it completely. I could solve only the Diagonal and Irregular regions.

Round 3: Mixed Bag - 45 mins - 550 points
Download Puzzle Booklet
Download Solution Booklet
A tough round for everyone. I solved the Extra-Region, Roman, Fortress and Inequality. I made a stupid error in Distance :-( Most of the other participants solved 2-3 puzzles out of 6.

Round 4: Mechanical Sudoku - 35 mins - 200 points + Time Bonus
Download Puzzle Booklet
Download Solution Booklet
Undoubtedly, this was the puzzle that spoiled everyone's mood... well, except mine :-) I was the first to complete the puzzle and did it with 6mins of time bonus. It was tough and very very interesting. Hats off to Amit and Deb for this superb puzzle!

After these four rounds, the standings were as follows:

1. Rohan Rao - 1235
2. Rishi Puri - 1185
3. Rakesh Rai - 1030
4. Jaipal Reddy - 775
4. Himani Shah - 775
6. Asha Siddaiah - 765
7. Gaurav Korde - 730
8. Ritesh Gupta - 720
8. Nidhi Sarawagi - 720
These 9 participants then played the Semi-Final. It was great fun. Rishi and me were going hand-in-hand until the last No Even Neighbours Sudoku. Its the variation that I (and Tejal Phatak) have created myself which got me hooked up long enough for Rishi to complete before me : Gaurav raced through the puzzles to finish a deserving 3rd. Then the fun. Rakesh, Jaipal, Himani, Asha and Ritesh were all on the 6th puzzle, wanting the 4th place to qualify for the last final round. Ritesh made it!
So, the standings after the semi-final were as follows:

1. Rishi Puri (19:36)
2. Rohan Rao (20:26)
3. Gaurav Korde (21:48)
4. Ritesh Gupta (33:44)
5. Asha Siddaiah
6. Rakesh Rai
7. Jaipal Reddy
8. Himani Shah
9. Nidhi Sarawagi

Final
Download Puzzle Booklet
Download Solution Booklet
The top 4 qualified for the finals which were 3 puzzles to be solved on a white-board with a marker pen. It was difficult for me due to my height :
1st puzzle was a Classic Sudoku. Rishi was first to complete in 3m 21s, followed by Gaurav and Ritesh. I was last at 5m 45s :
2nd puzzle was an Extra-Region Irregular Sudoku. Rishi was again first to complete followed by Gaurav and Ritesh. I was last again and finished 4 secs before the end-time (15mins). The great news (for me) was, Rishi unfortunately left one cell blank and Gaurav and Ritesh made an error! So, I was the only one to solve it correctly! :-)
3rd puzzle was a Snail Sudoku. Rishi completed his hat-trick by finishing first again, followed closely by Gaurav and me. This time Ritesh was last! ;-)

Based on the number of puzzles solved and the time taken to solve them, the final standings were as follows:

1. Rohan Rao (3 Correct - 52:32)
2. Rishi Puri (2 Correct - 49:06)
3. Gaurav Korde (2 Correct - 52:18)
4. Ritesh Gupta (2 Correct - 61:59)
Complete Results

It was great to meet the best puzzlers of the country, most of them part of LM community on orkut. It was a good learning experience and a fun-filled strong competition.

Thanks to Amit Sowani and Deb Mohanty for creating some great and fun puzzles. Thanks to Techfest and IIT-B for hosting this event and making it a grand success. Thanks to all the organisers and others involved.

Hope to have many more championships like these :-)

Serbian Sudoku Championship 2010 - Preliminary Contest 3

The 3rd Preliminary Contest of the Serbian Sudoku Championship - 2010 was held on 24th January, 2010 from 11:00 - 13:00 GMT (16:30 - 18:30 IST).

Password is sky33walker!!

The list of sudokus that appeared in the contest are:

2. Triplet Sudoku
3. Linked Alphabet Sudoku
8. Strimko Sudoku
9. Neighbours Sudoku
11. XV Sudoku
12. Big Bands Sudoku

Results

1. Jakub Ondrousek (Czech Republic) - 171
2. Florian Kirch (Germany) - 162
3. Nikola Zivanovic (Serbia) - 162
4. Fred Stalder (Switzerland) - 157
5. Jakub Hrazdira (Czech Republic) - 150
6. Taro Arimatsu (Japan) - 149
7. Zafer Huseyin Ergan (Turkey) - 140
8. Przemyslaw Debiak (Poland) - 130
9. Petra Cicova (Czech Republic) - 123
10. Makoto Hayashi (Japan) - 119

Complete Results

There were totally 20 participants.
Congrats to everyone!

Serbian Sudoku Championship - Preliminary Contest 2

The 2nd Preliminary Contest of the Serbian Sudoku Championship - 2010 was held on 17th January, 2010 from 11:00 - 13:00 GMT (16:30 - 18:30 IST).

Download Instruction Booklet
Download Puzzle Booklet
Password is su10doku

The list of sudokus that appeared in the contest are:

1. Classic Sudoku
2. Letter Sudoku
3. Hundred Sudoku
4. Sum Around Sudoku
5. Calculoku
6. Frame Sudoku
7. Square Numbers Sudoku
8. Snail Sudoku
9. Times 7 Sudoku
10. Keyboard Sudoku

Results

1. Taro Arimatsu (Japan) - 81
2. Jakub Ondrousek (Czech Republic) - 80
3. Branko Ceranic (Serbia) - 79
4. Philipp Weiβ (Germany) - 77
5. Zuzana Hromcova (Slovakia) - 72
6. Rakesh Rai (India) - 70
7. Matus Demiger (Slovakia) - 70
8. Marija Jovanovic (Serbia) - 70
9. Przemyslaw Debiak (Poland) - 69
10. Serkan Yurekli (Turkey) - 69

Indian participants

6. Rakesh Rai (India) - 70
14. Rohan Rao (India) - 66
24. Jaipal Reddy (India) - 41
26. Utkaarsh Somaiya (India) - 34

Complete Results

There were totally 34 participants.
Congrats to everyone!

Sudokucup 3

The 3rd Sudokucup was held on 16th January, 2010. The author was double world championship Thomas Snyder.

Download Instruction Booklet
Password is OSU42?SDANI2358!

The list of sudokus that appeared in the championship are:

2. Tight Fit Sudoku
3. Extra Space Sudoku
4. Sudo-Kurve
5. 3D Sudoku
6. Iso Sudoku
10. Surprise Sudoku
11. Thermo Sudoku
13. S, as in Sudoku

Results

1. Jan Mrozowski (Poland) - 300 (01:24)
2. Bertrand Vincent (Belgium) - 300 (01:43)
3. Chen Cen (China) - 300 (01:56)
4. Jason Zuffranieri (USA) - 279
5. Minfang Lin (China) - 278
6. Jan Novotny (Czech Republic) - 278
7. Jakub Hrazdira (Czech Republic) - 274
8. Jana Tylova (Czech Republic) - 257
9. Przemyslaw Debiak (Poland) - 257
10. Jakub Ondrousek (Czech Republic) - 251

Indian participants

20. Rohan Rao (India) - 229
35. Jaipal Mogiligundla (India) - 212
58. Rishi Puri (India) - 176
78. Senthil Kumar (India) - 164
88. Gaurav Korde (India) - 155
113. Priyanka Gupta (India) - 140
156. Utkarsh Somaiya (India) - 118
163. Tejal Phatak (India) - 116
172. Rakesh Rai (India) - 112
183. Rahul Jain (India) - 106


There were totally 484 participants.
Congrats to everyone!

Serbian Sudoku Championship - Preliminary Contest 1

The 1st Preliminary Contest of the Serbian Sudoku Championship - 2010 was held on 3rd January, 2010 from 15:00 - 16:30 GMT (20:30 - 22:00 IST).

Download Instruction Booklet
Download Puzzle Booklet

The list of sudokus that appeared in the contest are:

1. Classic Sudoku
2. Outside Sudoku
3. Killer Sudoku
4. Diagonal Sudoku
5. Outside Sum Sudoku
6. Irregular Sudoku
7. Non-Consecutive Sudoku
8. Even Sudoku
9. Diagonal Even Sudoku

Results

1. Predrag Stanojevic (Serbia) - 800 (00:51)
2. Jason Zuffranieri (USA) - 800 (01:10)
3. Florian Kirch (Germany) - 800 (01:10)
4. Taro Arimatsu (Japan) - 800 (01:10)
5. Demiger Matus (Slovakia) - 800 (01:15)
6. Rohan Rao (India) - 800 (01:26)
7. Karel Tesar (Czech Republic) - 800 (01:27)
8. Debiak Przemyslaw (Poland) - 800 (01:30)
9. Jakub Ondrousek (Czech Republic) - 760
10. Agnieszka Buczma (Poland) - 725

Indian participants

6. Rohan Rao (India) - 800
12. Rishi Puri (India) - 705
13. Lenson Andrade (India) - 705
26. Rakesh Rai (India) - 500


There were totally 39 participants.
Congrats to everyone!

Indian Sudoku Championship 2010

Indian Sudoku Championship 2010
Sudoku, dubbed as the hottest puzzle sensation since the Rubiks Cube gained worldwide popularity in early 2005. The first World Sudoku championship (WSC) was held in March 2006 in Lucca, Italy. The 5th WSC will be held in April 2010 in Philadelphia, USA. Logic Masters India in association with TechFest at IIT Bombay, invites you to test your logical skills in the Indian Sudoku Championship and get an opportunity to represent India at the WSC. All resident Indian nationals, irrespective of age, can participate in Indian Sudoku Championship. The sudoku-solving skills of contestants will be tested through the regular Classic sudokus as well as different sudoku variations which appear in the WSCs. Top rankers at the Indian Sudoku Championship will be eligible to represent India at the 5th World Sudoku Championship to be held in Philadelphia in April 2010.

Rules and Regulations
The Indian Sudoku Championship will consist of two online rounds on 3rd and 9th January 2010 to select the top 30 participants for the finals. There will also be an elimination round to select the top 30 from the on the spot participants on 23rd January 2010. The finals for these 60 participants will be held on 24th January 2010. Detailed instructions are available here

Championship page
For further details regarding the Indian Sudoku Championship please visit our championship page

Registration
All participants will have to register at the TechFest website to get their participant ID here.

Download Instruction Booklet

Download Puzzle Booklet 1 (Day 1)
Password is wa5endul
Download Solution Booklet 1 (Day 1)
Download Puzzle Booklet 2 (Day 1)
Password is sh9pylyj
Download Solution Booklet 2 (Day 1)
Download Puzzle Booklet 3 (Day 1)
Password is bu4tabeb
Password is Solution Booklet 3 (Day 1)

Download Puzzle Booklet 1 (Day 2)
Password is dskn7vytps
Download Solution Booklet 1 (Day 2)
Download Puzzle Booklet 2 (Day 2)
Password is njtnr2qdbh
Download Solution Booklet 2 (Day 2)
Download Puzzle Booklet 3 (Day 2)
Password is bdjms8bh3k
Download Solution Booklet 3 (Day 2)

The list of puzzles that appeared for the championship are:

Round 1
1. Classic Sudoku

Round 2
1. Odd-Even Sudoku
2. Diagonal Sudoku
3. Frame Sudoku
4. Sudoku XV
5. Irregular Sudoku
6. Consecutive Sudoku

Round 3
1. Outside Sudoku
2. Quadruple Sudoku
3. Magic Square Sudoku
4. No Knight Sudoku
5. Group Sum Sudoku
6. Toroidal Sudoku

Results

1. Jan Mrozowski (Poland) - 1970
2. Jakub Ondrousek (Czech Republic) - 1910
3. Rohan Rao (India) - 1875
4. Jan Novotny (Czech Republic) - 1840
5. Nikola Zivanovic (Serbia) - 1730
6. Rishi Puri (India) - 1725
7. Ritesh Gupta (India) - 1655
8. Chen Cen (China) - 1585
9. Jakub Hrazdira (Czech Republic) - 1550
10. Rakhel Parida (India) - 1435
10. Puneet Goenka (India) - 1435

Indian results

1. Rohan Rao - 1875
2. Rishi Puri - 1725
3. Ritesh Gupta - 1655
4. Rakhel Parida - 1435
4. Puneet Goenka - 1435
6. Gaurav Korde - 1360
7. Priyanka Gupta - 1355
8. Pooja Gaddyan - 1345
9. Neha Sharma - 1295
9. Pratik Poddar - 1295
9. Gnyanendra Kumar - 1295

Complete Results

There were totally 169 participants.
Congrats to everyone!

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