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"We make quiet hours of thinking"

Analog

Screen-free

Made in Seoul

2nd Pre-order OPEN!

πŸ“… Period: 2025 Nov 23 – Dec 30

🚚 Shipping: From 2025 Dec 31 (order sequence)

🎁 Bonus: Fee shipping for pre-order!

Join pre-order

Hello Australia!

We’re a Seoul-based startup, designing and making TheSudoku.

Thanks!

Since this summer, I’ve been getting so many DMs from friends outside of South Korea. asking if they can get The Sudoku.

Thank you so, so much for showing love to our reimagined version of Sudoku β€” made with our own little vibe 🩡

So, we go Australia!

So, we’re going to US!

Can’t wait to see you soon πŸ’›

Pre-order items

FAQ

πŸ’Έ What is the return policy?

Yes, absolutely! If you receive the product and don’t like it, or if it’s not quite what you expected, we offer a 100% full refund.

Just email us at contact@dcrtco.com β€” we’ll guide you through the return process step by step πŸ’Œ

🧩 Can kids play too?

Yes! Our puzzles are designed for both adults and children to enjoy together.

For example, level 1 puzzles are easy enough for 2nd or 3rd graders β€” once they learn how to play, they can solve them on their own! ✨

πŸ“¦ When will I get my order?

Starting from December 23, orders will be shipped from our Australia logistics center in the order they were placed.

You can expect to receive your package within about 2–5 days after it’s shipped!

Delivery times vary depending on your location.

🏭 Where are your products manufactured?

The Sudoku is designed and made in Korea. πŸ‡°πŸ‡·βœ¨

We hope to bring you a product that combines quality and value β€” every detail is crafted with care.

Story

How The Sudoku Was Born

Episode 1 β€” A Thousand Small Decisions: The Quiet Journey to Making The Sudoku