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.

It depends a lot atm. But you can try best between 17:00 and 23:00 CET.

3..9-13, 30-34 and 18-23 is also winning

Oh, 24-30 on move 3. 1..23-29, 13-19, 21-27 and 11-17 is also winning.

Did you mean 23-29? That seems to be winning. I don't see the continuation after 24-30.

After 19-23 white can also capture two pieces using the piece on square 30. Unlike in Frysian, in regular draughts you're not forced to take with the king if a man and a king can capture the same numb…

19-23 on the second move, instead of 13-18

In this puzzle, the correct answer is given as 1...23-28 2.32x1 13-18, but why doesn't 19-23 work as well?

after 24-29, 20x40, 23-28 and 18x40, the moves 14-20 and 13-18 is also possible instead of 13-18 first and then 14-20

Author here. @Jeffrey Congratulations on the draw! Scan probably made mistakes when answering you, however. The version I'm using is slightly different, and plays those moves (even with only…