Creator here. No, you can arrange the puzzle pieces to make dates that don't exist, like Monday February 31. Actually there may be "impossible" dates, because I didn't check for them, but I guess all combinations of days of the week, day of the month and month are possible. And also many non-dates, like 1, 2, 3. But good point: alle possible dates have at least 1 solution. Disclaimer: I sell these puzzles for a little more than the raw material.
Creator here. That puzzle started my search into this type of puzzle. But in the end my puzzle is harder, because it also contains the day of the week and has the most "irregular" puzzle pieces possible.
Nice, but it's only available in English sadly, there's a link that says "see kalenderpuzzel "Ruit" for the Dutch version" (I'd prefer French but Dutch would do as well) but that page says "De maanden en dagen van de week zijn in het Engels".
The "square" one is in Dutch but sold out and the Rotterdam one in English only.
But I like that idea, apparently it's not the first puzzle of this kind but I didn't know about them.
Creator here. If there is enough demand I can make a French version. Ordering a new batch of lasercut wood cost me $20, so I have a minimum batch size of 20.
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[ 4.4 ms ] story [ 39.2 ms ] threadAll dates are possible and most (all?) have multiple solutions.
The "square" one is in Dutch but sold out and the Rotterdam one in English only.
But I like that idea, apparently it's not the first puzzle of this kind but I didn't know about them.