Put a grid on a grid and what do you get? Sudoku!
112FullDeck and Missing a Few Cards guest solve "Hilbert's Curveball" by heliopolix. A Modified 8x8 Sudoku using the Slow Thermos, Modular Lines, and Portal constrints.
Solve in Sven's SudokuPad WebApp: https://tinyurl.com/3jbn32km
This puzzle can also be found on Logic Masters Germany: https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=000E9Z
Hilber's Curve video by 3Blue1Brown: https://youtu.be/3s7h2MHQtxc
📋 Puzzle Rules:
• Almost Sudoku rules apply. Place eight of the digits 1-9 in each row, column, and 2x4 box, without repetition. Each row, column, and box is missing a digit. The missing digit can be the same or different for different areas.
• Modular Line. Any group of three adjacent cells along the teal line must contain one digit from each of these groups: [1,4,7], [2,5,8], and [3,6,9]. The two line segments are connected into a single line at r1c8 and r8c1.
• Slow Thermos. Digits along a gray thermo may not decrease from the bulb end. Digits may increase or remain the same along a thermo.
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