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US Sudoku Championship 2010

The US Sudoku Championship - 2010 will be held on 28th March, 2010 at 13:00 EDT (22:30 IST).

Results

1. Jason Zuffranieri (USA) - 409
2. Yuhei Kusui (Japan) - 383.167
3. Nikola Zivanovic (Serbia) - 379.083
4. Ours Brun (France) - 359.958
5. Allen Kong (USA) - 340.708
6. Jonathan Rivet (USA) - 340.458
7. Jim Schneider (USA) - 335
8. Branko Ceranic (Serbia) - 320
9. William Blatt (USA) - 315.208
10. Chris Narrikkattu (USA) - 315

Visit championship page for more details.

Indian Sudoku Championship - Mock Test 18

The 18th Mock Test in preparation for the World Sudoku Championship 2010 was held on 28th March, 2010. The mock test started at 20:00 IST (14:30 GMT) on 26th March and it was open for 24hrs.
It was organised by Branko Ceranic (Skywalker).

Download Instruction Booklet
Download Puzzle Booklet
Password is gat18cumo

The list of sudokus that appeared in the test are:

Relay
1. Diagonal Sudoku
2. Killer Sudoku
3. Irregular Sudoku
4. Classic Sudoku
5. XV Sudoku
6. Anti Knight Sudoku

Variants
7. Alphabet Sudoku
8. Odd Sudoku
9. Classic Sudoku
10. Killer Sudoku
11. Neghbours +N Sudoku
12. Non-Consecutive Sudoku
13. Classic Sudoku
14. Big Bands Sudoku
15. Irregular Disjoint Sudoku
16. Windoku

Results

1. Chen Chen (China) - 1600
2. Rishi Puri (India) - 1430
3. Florian Kirch (Germany) - 1310
4. Gaurav Korde (India) - 1300
4. Rohan Rao (India) - 1300
6. Ce Jin (China) - 1160
7. Amit Sowani (India) - 1080
8. Fred Stalder (Switzerland) - 947
9. Zafer Huseyin Ergan (Turkey) - 939
10. Kokanee () - 921

Indian participants

2. Rishi Puri (India) - 1430
4. Gaurav Korde (India) - 1300
4. Rohan Rao (India) - 1300
7. Amit Sowani (India) - 1080
14. Rakesh Rai (India) - 834
14. Jaipal Reddy (India) - 834
19. Tejal Phatak (India) - 824
24. Neeraj Mehrotra (India) - 705
26. Akash Doulani (India) - 618
37. Sudhanshu Pandey (India) - 407

Complete Results

There were totally 47 participants.
Congrats to everyone!

Puzzle No.298

This is a Multiplication Table Sudoku.

PUZZLE NO.298: MULTIPLICATION SUDOKU


SOLUTION:

Puzzle No.297

This is a No Even Neighbours Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.297: NO EVEN NEIGHBOURS SUDOKU


SOLUTION:

Puzzle No.296

This is an Even Sudoku made by Deb Mohanty.

PUZZLE NO.296: EVEN SUDOKU


SOLUTION:

Puzzle No.295

This is a Classic Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.295: CLASSIC SUDOKU


SOLUTION:

Puzzle No.294

This is a Classic Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.294: CLASSIC SUDOKU


SOLUTION:

Puzzle No.293

This is an Anti Diagonal Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.293: ANTI DIAGONAL SUDOKU


SOLUTION:

Puzzle No.292

This is an Outside Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.292: OUTSIDE SUDOKU


SOLUTION:

Puzzle No.291

This is a Descriptive Pairs Sudoku made by Gaurav Korde.

PUZZLE NO.291: DESCRIPTIVE PAIRS SUDOKU


SOLUTION:

Puzzle No.290

This is a Mirror Sudoku made by Gaurav Korde.

PUZZLE NO.290: MIRROR SUDOKU


SOLUTION:

Rules of 'Descriptive Pairs Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. Each pair of digits A and B on the outside means that at least one of the following are true in the row/column:
a) There is a digit A in the Bth cell
from the edge.
b) There is a digit B in the Ath cell
from the edge.

EXAMPLE:


UNIQUE SOLUTION:

Rules of 'Mirror Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. The 1st and 9th boxes, and the 3rd and 7th boxes are mirror images of each other.

EXAMPLE:


UNIQUE SOLUTION:

Puzzle No.289

This is a Group Sum Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.289: GROUP SUM SUDOKU


SOLUTION:

Puzzle No.288

This is an Outside Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.288: OUTSIDE SUDOKU


SOLUTION:

Puzzle No.287

This is a Group Sum Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.287: GROUP SUM SUDOKU


SOLUTION:

Puzzle No.286

This is an Irregular Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.286: IRREGULAR SUDOKU


SOLUTION:

Indian Sudoku Championship - Mock Test 17

The 17th Mock Test in preparation for the World Sudoku Championship 2010 was held on 21st March, 2010. The mock test started at 20:00 IST (14:30 GMT) on 20th March and it was open for 24hrs.
It was organised by Jakub Hrazdira (Gotroch) and Maruska Benediktova (Cauchy).

Password is R1exa7bero
Password is R2snuotn3y

The list of sudokus that appeared in the test are:

Round 1 (Relay)
Relay 1

Relay 2
5. Quadro Sudoku

Round 2 (Variants)
2. Pandigital Sudoku
4. No Four In A Row Sudoku
5. Outside Killer Sudoku
6. No Operations Mathdoku
7. Loop Sudoku

Results

1. Jan Mrozowski (Poland) - 840
2. Jakub Ondrousek (Czech Republic) - 720
3. Rohan Rao (India) - 715
4. Chen Chen (China) - 675
5. Branko Ceranic (Serbia) - 665
6. Fred Stalder (Switzerland) - 630
6. Florian Kirch (Germany) - 630
8. Rishi Puri (India) - 615
9. Sylvain Caudmont (France) - 605
10. Gaurav Korde (India) - 550

Indian participants

3. Rohan Rao (India) - 715
8. Rishi Puri (India) - 615
10. Gaurav Korde (India) - 550
18. Tejal Phatak (India) - 465
21. Jaipal Reddy (India) - 410
27. Rakesh Rai (India) - 325
29. Amit Sowani (India) - 305
30. Neeraj Mehrotra (India) - 295
31. Ritesh Gupta (India) - 290
39. Rajesh Kumar (India) - 230


There were totally 56 participants.
Congrats to everyone!

Indian Sudoku Championship - Mock Test 16

The 16th Mock Test in preparation for the World Sudoku Championship 2010 was held on 14th March, 2010. The mock test started at 20:00 IST (14:30 GMT) on 13th March and it was open for 24hrs.
It was organised by Amit Sowani and Kshitij Sharma.

Password is RandPass

The list of sudokus that appeared in the test are:

4. Minesweeper Sudoku
5. Domino Sudoku
6. Easy As Sudoku
7. Mastermind Sudoku
8. Word Search Sudoku
11. Paint By Numbers Sudoku
12. Pirate Sudoku

Results

1. Jan Mrozowski (Poland) - 690
2. Nikola Zianovic (Serbia) - 605
3. Sylvain Caudmont (France) - 540
3. Rohan Rao (India) - 540
5. Jakub Hrazdira (Czech Republic) - 500
6. Dave Petranick (USA) - 485
7. Gaurav Korde (India) - 480
8. Fred Stalder (Switzerland) - 470
8. Zafer Huseyin Ergan (Turkey) - 470
10. Kokanee () - 450

Indian participants

3. Rohan Rao (India) - 540
7. Gaurav Korde (India) - 500
16. Rishi Puri (India) - 400
16. Ritesh Gupta (India) - 400
18. Tejal Phatak (India) - 395
23. Rakesh Rai (India) - 360
26. Akash Doulani (India) - 335
28. Aditya Saraf (India) - 300
37. Neeraj Mehrotra (India) - 195
43. Sukhi (India) - 130


There were totally 49 participants.
Congrats to everone!

Puzzle No.285

This is a Stripes Sudoku made by Deb Mohanty.

PUZZLE NO.285: STRIPES SUDOKU


SOLUTION:

Puzzle No.284

This is a Fortress Sudoku made by Deb Mohanty.

PUZZLE NO.284: FORTRESS SUDOKU


SOLUTION:

Puzzle No.283

This is an Anti Diagonal Sudoku made by Deb Mohanty.

PUZZLE NO.283: ANTI DIAGONAL SUDOKU


SOLUTION:

Puzzle No.282

This is a Blackout Sudoku made by Gaurav Korde.

PUZZLE NO.282: BLACKOUT SUDOKU


SOLUTION:

Puzzle No.281

This is a No Even Neighbours Sudoku made by Deb Mohanty.

PUZZLE NO.281: NO EVEN NEIGHBOURS SUDOKU


SOLUTION:

Puzzle No.280

This is a Consecutive Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.280: CONSECUTIVE SUDOKU


SOLUTION:

Puzzle No.279

This is an Anti Knight Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.279: ANTI KNIGHT SUDOKU


SOLUTION:

Puzzle No.278

This is an Inequality Sudoku made by Deb Mohanty.

PUZZLE NO.278: INEQUALITY SUDOKU


SOLUTION:

Puzzle No.277

This is a Diagonal Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.277: DIAGONAL SUDOKU


SOLUTION:

Puzzle No.276

This is a Consecutive Sudoku from the Indian Sudoku Championship - 2010.

PUZZLE NO.276: CONSECUTIVE SUDOKU


SOLUTION: