World Puzzle Federation

16/09/2026

WSC IB is ready!

Dear Sudoku friends, the organizers of the World Sudoku Championship in Kolkata, India, have already published the Instruction Booklet, which includes the Sudoku types that will be used in the competition. Enjoy!
https://wspc2026.logicmastersindia.com/?g=WSC

If you have any questions about the Sudokus, feel free to post them on the website forum: https://wspc2026.logicmastersindia.com/forum/forums/forum-view.asp?fid=69

Instruction Booklet for individual rounds (version 1) published. Download here Please use the forum link to post any questions related to the Instruction Booklet. Instruction Booklet for team rounds will be published soon.

03/09/2026

Next month the 2026 World Sudoku (19th) and Puzzle (33rd) Championship will take place in Kolkata, India 🇮🇳

Further details, including how to register is at:
https://wspc2026.logicmastersindia.com/

In the meantime, we have gathered all the results, from the very first WPC in 1992 to the latest edition in 2025, in our Championships page:
https://worldpuzzle.org/championships

Browse the stats from the all WPF competitions (WSPC, ASC, ESC) and travel back through time to see the puzzle instructions from past events!

The first World Puzzle Championship (WPC) was held in 1992 in New York, USA. In 2006 the WPF started supervising a yearly World Sudoku Championship (WSC) as well. The first one took place March 10-11, in Lucca (Italy). From 2011, the WSC and WPC are combined into a one week event (WSPC) and held aro...

07/08/2026

THE LAST SUDOKU GP IN 2026 HAS STARTED

Dear sudoku friends, the WPF Sudoku GP Instruction Booklet for Round 2 by Julien from France has been released, and the competition is open until Wednesday.

Enjoy! https://gp.worldpuzzle.org/content/instruction-booklet

If you are not familiar with the competition procedure, please check the Instructions for solving site - https://gp.worldpuzzle.org/content/instructions-solving

31/07/2026

Dear players, just a reminder that you still have two more days (until Sunday) to compete in WPF Puzzle GP R7. We wish you the best of luck!

https://gp.worldpuzzle.org/content/competition-puzzles-2

PUZZLE GP R7 POSTPONED BY 12h

Dear players, unfortunately, we had to postpone the start of the WPF Puzzle GP Round 7 by 12 hours. The competition will be extended by two days until Friday (July 31). We are sorry for all the inconvenience.

https://gp.worldpuzzle.org/content/wpf-puzzle-gp7-postponed-start

Feel free to check the Instruction Booklet with sample puzzles by then: https://gp.worldpuzzle.org/content/instruction-booklet-2

25/07/2026

The 2026 World Junior Sudoku Championship is being held in Beijing, China, this weekend.
There are individual competitions across U8, U10, U12, U15, U18, U23 age groups, Open and team competitions.

The organisers have also arranged many puzzle activities and city tours for the children and parents after the competition. ✏️

We will be back with the results after the event.

24/07/2026

GP PUZZLE ROUND 7 HAS STARTED

Thanks for your patience, we wish you the best of luck with the puzzles!

PUZZLE GP R7 POSTPONED BY 12h

Dear players, unfortunately, we had to postpone the start of the WPF Puzzle GP Round 7 by 12 hours. The competition will be extended by two days until Friday (July 31). We are sorry for all the inconvenience.

https://gp.worldpuzzle.org/content/wpf-puzzle-gp7-postponed-start

Feel free to check the Instruction Booklet with sample puzzles by then: https://gp.worldpuzzle.org/content/instruction-booklet-2

24/07/2026

PUZZLE GP R7 POSTPONED BY 12h

Dear players, unfortunately, we had to postpone the start of the WPF Puzzle GP Round 7 by 12 hours. The competition will be extended by two days until Friday (July 31). We are sorry for all the inconvenience.

https://gp.worldpuzzle.org/content/wpf-puzzle-gp7-postponed-start

Feel free to check the Instruction Booklet with sample puzzles by then: https://gp.worldpuzzle.org/content/instruction-booklet-2

02/07/2026

World Junior Sudoku Championship is nearly here, do not hesitate to register! https://wjsc.scimall.org.cn/

💡The 2026 World Junior Sudoku Championship will take place in the Shijingshan District of Beijing, China on 24-27th July 2026. 🇨🇳

The competition is divided into 5 age-groups: U8, U10, U12, U15 and U23. There will also be an Open category. Registration is now open. If you would like to participate, please contact the organisers at: [email protected]

If you need help from your nation's WPF representative. Find out your country's membership details here:
https://worldpuzzle.org/members/wpf-members

If your country is not listed or you have any trouble getting in touch with your country's representative. Please contact us at [email protected]

More details can be found in the official website:
https://wjsc.scimall.org.cn/

03/06/2026

Dear puzzle lovers, the WPF Puzzle GP Round 5 is extended until Friday midnight (GMT+1). We apologize for any inconvenience, and hope you will find your time to enjoy the Japanese puzzles by then.

27/05/2026

💡The 2026 World Junior Sudoku Championship will take place in the Shijingshan District of Beijing, China on 24-27th July 2026. 🇨🇳

The competition is divided into 5 age-groups: U8, U10, U12, U15 and U23. There will also be an Open category. Registration is now open. If you would like to participate, please contact the organisers at: [email protected]

If you need help from your nation's WPF representative. Find out your country's membership details here:
https://worldpuzzle.org/members/wpf-members

If your country is not listed or you have any trouble getting in touch with your country's representative. Please contact us at [email protected]

More details can be found in the official website:
https://wjsc.scimall.org.cn/