Thanks for the nice comments @AnotherFraudUser and thanks both to you and @bruno29a for taking part and helping make it fun. You certainly both kept me on my toes!
Maybe one day soon I’ll try to think up another challenge… But I know the speed with which you guys can think up answers to KNIME questions, so finding something suitably tricky is a challenge in itself, but it was great to see your various solutions that I hadn’t considered. 