World Puzzle Federation

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/

18/05/2026

Dear sudoku and puzzle innovators!

Following the success from 2017, the Indian team has launched the second edition of the Puzzle Innovation contest. You only have time until May 31, so do not hesitate to take part and join the contest with your best inventions.

For more details, check the LMI forum: https://wspc2026.logicmastersindia.com/forum/forums/thread-view.asp?tid=7501&posts=1&start=1

10/05/2026

An event of this calibre could not have happened without the efforts of the organising team. Thank you for hosting us in Bratislava!

We look forward to the European Sudoku Championship remaining a cornerstone of the international puzzle calendar for years to come.

Next stop is the World Championships in Kolkata, India in October. See you there!

10/05/2026

The first European Sudoku Championship is now over!
After 7 individual rounds, 2-time World Champion Tiit Vunk is also the first European Sudoku Champion!
Joining him on the podium are Czech power solvers Jakub Ondrousek and Jan Vondruska.

On the second day, 50 teams competed over 4 creative rounds of interconnected puzzles. The Czech teams continued their dominance and took both the gold and silver positions. Team Turkey finished in third. 🥳

ESC 2026 - Individual Top 10
1. Tiit Vunk 🇪🇪
2. Jakub Ondrousek 🇨🇿
3. Jan Vondruska 🇨🇿
4. Vincent Bertrand 🇧🇪
5. Martin Merker 🇩🇪
6. Dominik Bezkosty 🇵🇱
7. Jan Zverina 🇨🇿
8. Can Erturan 🇹🇷
9. Nikola Zivanovic 🇷🇸
10. Christian Konig 🇩🇪

ESC 2026 - Team Top 10
1. Czech A 🇨🇿
2. Czech B 🇨🇿
3. Turkey A 🇹🇷
4. UK A 🇬🇧
5. Germany A 🇩🇪
6. Netherlands A 🇧🇶
7. Hungary A 🇭🇺
8. Estonia A 🇪🇪
9. Turkey B 🇹🇷
10. France A 🇫🇷

Congratulations to the other prize winners:

U18
1. Can Erturan 🇹🇷
2. Iva Rabar 🇭🇷
3. Marin Puljiz 🇭🇷

O50
1. Claudine Thiry 🇱🇺
2. Manuela Hawel 🇦🇹
3. Deyan Razsadov 🇧🇬

Newcomer (who haven't participated in WSC)
1. Freddie Hand 🇬🇧
2. Gabrielle Zwaneveld 🇧🇶
3. Katarzyna Kruszel 🇵🇱

Female
1. Tantan Dai 🇨🇳
2. Eva Schuckert 🇦🇹
3. Jana Novotna 🇨🇿

Photos by Martin Hruška 📷

09/05/2026

The inaugural European Sudoku Championship is underway in Bratislava, Slovakia! 🇸🇰

We welcome 156 solvers from 27 countries and the hotel is completely full 🧳

The competition takes place over 2 days with 7 individual rounds and 4 team rounds.

You can check the preliminary results on the website https://sudoku2026.eu/en/vysledky/

Photos by Martin Hruška 📸

01/05/2026

Get ready for the 1st European Sudoku Championship!

24/04/2026

WPF GP PUZZLE ROUND 4 HAS STARTED

Dear puzzle friends, the WPF Puzzle GP Round 4 by German authors has started, and the IB promises an exciting set of cube puzzles!

The competition puzzles and password is available until 23:59:59 on April 29, 2026 (GMT + 1 hour). Please note that the competition is extended until Wednesday during each round.

The Instruction Booklet with sample puzzles is available here: https://gp.worldpuzzle.org/content/instruction-booklet-2

You can start the competition at the contest site: https://gp.worldpuzzle.org/content/competition-puzzles-2

For the full schedule of the 8 rounds of 2025, please check here:
https://gp.worldpuzzle.org/content/puzzle-gp

Any relevant queries, discussion points, and post-competition feedback can be posted in the WPF Discord, You access the Discord via this link: https://discord.gg/3JqxsPpr

Before starting the competition you can check the Instructions for solving for more details.

Good luck and enjoy the puzzles!

07/04/2026

One month until the 1st European Sudoku Championship!
Are you ready to try UFO Sudoku?

ONE MONTH UNTIL WE MEET IN BRATISLAVA ⏳

The European Sudoku Championship is getting closer.

We’ve prepared a special series of sudokus inspired by some of the most iconic places in the city.

WHAT ARE THE RULES?
Classic sudoku rules apply. In the thermometer, digits must strictly increase starting from the bulb to the tip. The digits on the lines must form a palindrome and be read the same in both directions. Cells with a circle must contain an odd digit, and cells with a square must contain an even digit.

Solve it and let us know your time.

🔗 Try the UFO sudoku here: https://tinyurl.com/preview/deprecated/2dk42tfw

10/02/2026

The 7th ASC was fiercely contested to the very end! 🔥

Congratulations to Hu Yuxuan of China in becoming the 2026 Asian Sudoku Champion! He adds this title to his 2024 ASC win. The podium is completed by two other former ASC winners, Ken Endo finished second and Sun Cheran came in third.

China has more reasons to smile and they also took gold in the Teams Master division. Japan and India were second and third respectively.

Here are the winners:

𝗜𝗻𝗱𝗶𝘃𝗶𝗱𝘂𝗮𝗹
Master Division
🥇 Hu Yuxuan 🇨🇳
🥈 Ken Endo 🇯🇵
🥉 Sun Cheran 🇨🇳

Casual Division
🥇 Chen Cen 🇨🇳
🥈 Wang Mingyi 🇨🇳
🥉 Yuka Jo 🇯🇵

U-18 Division
🥇 Kang Hanjun 🇰🇷
🥈 Phattharapharadee Maenpuen 🇹🇭
🥉 Thammaphop Saengkrathok 🇹🇭

U-15 Division
🥇 Guo Zhenqian 🇨🇳
🥈 Zhou Liejun 🇨🇳
🥉 Chakkaphat Saiphoklang 🇹🇭

U-12 Division
🥇 Phawin Putprasert 🇹🇭
🥈 Phumiphat Ravijit 🇹🇭
🥉 Adhira Vivek 🇮🇳

U-10 Division
🥇 Feng Xinyan 🇨🇳
🥈 Lian Chengwei 🇨🇳
🥉 Klao Ketmai 🇹🇭

U-8 Division
🥇 Wang Guanze 🇨🇳
🥈 Xu Kuo 🇨🇳
🥉 Zhang Zhiyue 🇭🇰

𝗧𝗲𝗮𝗺
Master Division
🥇 China 🇨🇳
🥈 Japan 🇯🇵
🥉 India 🇮🇳

Casual Division
🥇 China 🇨🇳
🥈 Vietnam 🇻🇳
🥉 Asia Team 🇯🇵 + 🇮🇳 +🇵🇭

We wish everyone safe travels home and thank the organisers for making this year's ASC happen. Up next is the inaugural European Sudoku Championship which is scheduled for early May in Slovakia!

Stay tuned!

Full standings: https://l.facebook.com/l.php?u=https%3A%2F%2Fdocs.google.com%2Fspreadsheets%2Fd%2F15xPNXHEQtLufLg_bRpOGSSseOUNodfbpwIcjU5iwtAA%2Fedit%3Fusp%3Dsharing%26fbclid%3DIwZXh0bgNhZW0CMTAAYnJpZBExMGVTcmNoUUIxMWxQS2ljRnNydGMGYXBwX2lkEDIyMjAzOTE3ODgyMDA4OTIAAR41ztM3irjYVCsaARhVbkGCV-LDjhlfXU5jR7vnWmQyyKetg6TRsmnH9HdDdg_aem_Yh2kyfylY79Xpqq2uKxLjA&h=AT1koHbB6CilQiwOm_4KDojL3ffNLbZeBQcfB1TNQoCPO1mDJYp5AVPrmq1qAsAXoKCELkIggpVQ1S_0swafqDvy9MaxhBtnbFer_CCPt9T55MjGGl3TBUGm4y4_7QxNlnXfF_dEBw54stzfNNCjCILMNy0ywLTc&__tn__=-UK-R&c[0]=AT1iXLH_T6SkS6yyPZY6W0xzxYtm3_QUc9eumtx49dz6Zgq_h6AkripYXESXdTZaNOqSeVZ5Lt_i4J58CddJpuvALl8Db97vrm-MbLogmWFqqwhK15IV40_z1X_VxNZZSBl-2T0fE8g1lM0YYZc6ywiA6BXckwylpHdcBYsBWf0y1XG1Pj--HpNjyRgj3M2Ol4SDP3lY3sjMwgEoqrAenn8TbA

Photos: https://discord.com/channels/1438821756029898774/1438826375585730640/1470817613813649418