The key can be either 1...26-31 or 1...23-29. I was deducted 19 points because it's set to only allow one key. Fix it, please. Also, would love Frisian problems.

@Tim I found this problem in puzzle 292 yesterday as well. We will disable it and put the same puzzle back in with all the correct solutions. (like for example puzzle 361, where now both 27-21 and 31-…