Happy New Year 2025 Sudoku Contest ( 31st Dec to 06th Jan )

Links

Instructions Booklet
Puzzle Booklet ( 9 pages )
Timing / More Information
Online Solving
Discussion Thread

Online solving using Penpa is enabled in this contest. Make sure to read the F.A.Q. on online solving before starting the contest.

Supported browsers : Latest versions of Google Chrome, Microsoft Edge, Opera. At this point, we do not support Firefox.

Author

Tyler Chen

The official period for "Happy New Year 2025 Sudoku Contest" is over. However, you can participate unofficially using this link.

Your timer will start when you click "Start Happy New Year 2025 Sudoku Contest" — then you will have 200 minutes to solve and submit your answers.

A timer will be shown the answer page with the remaining time.

If you have any questions or doubts or suggestions, please ask in the forum.

Instant Grading

Not submitted Wrong Correct
Link for Paper Solving
Score Page
You must be logged on before you can start the contest.
Password for Puzzle Booklet :
You must start the contest to be able to solve online.
1. Classic
30 points
A
B
You must start the contest to be able to solve online.
2. Classic
30 points
A
B
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3. Classic
30 points
A
B
You must start the contest to be able to solve online.
4. Classic
35 points
A
B
You must start the contest to be able to solve online.
5. Classic
75 points
A
B
You must start the contest to be able to solve online.
6. Antiking
80 points
A
B
You must start the contest to be able to solve online.
7. Antiknight
145 points
A
B
You must start the contest to be able to solve online.
8. Antiknight or Antiking
105 points
A
B
You must start the contest to be able to solve online.
9. German Whispers
95 points
A
B
You must start the contest to be able to solve online.
10. Thermo
75 points
A
B
You must start the contest to be able to solve online.
11. German Whispers or Thermo
160 points
A
B
You must start the contest to be able to solve online.
12. Killer
215 points
A
B
You must start the contest to be able to solve online.
13. X-Sums
120 points
A
B
You must start the contest to be able to solve online.
14. Killer X-Sums
305 points
A
B
You must start the contest to be able to solve online.
15. Outside
55 points
A
B
You must start the contest to be able to solve online.
16. Skyscrapers
120 points
A
B
You must start the contest to be able to solve online.
17. Outside or Skyscrapers
325 points
A
B
In case the website goes down, send an email to logicmasteradmin@gmail.com with the answer keys. Anything within time will be considered, but only in the case of the website being down.