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🌍 observance

International Sudoku

Wednesday, September 9, 2026

— days to go

In 1979, Sudoku. Invention. The modern version of Sudoku was invented by Howard Garns, an American architect and puzzle enthusiast

History

Sudoku Invention. The modern version of Sudoku was invented by Howard Garns, an American architect and puzzle enthusiast

How It's Celebrated

International Sudoku is observed by recognizing the importance of the day, learning about its background and significance, and sharing awareness with others through conversation and social media. Many people take time to reflect on the meaning of the observance and participate in relevant activities or community events.

Other Years

2021 Thu
09 Sep
2022 Fri
09 Sep
2023 Sat
09 Sep
2024 Mon
09 Sep
2025 Tue
09 Sep
2026 Wed
9/9
2027 Thu
09 Sep
2028 Sat
09 Sep
2029 Sun
09 Sep

Countries

🇺🇸 US

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