Dragging the crag names doesn't seem to work on Android (I've tried both a Sony xz1 and a lenovo tab 4 plus with different versions of android and chrome) 

Thanks for doing the quiz, great fun/family distraction 

Hmm, what version are you on? Works fine on my phone.

Make sure you haven't got the Desktop site checked from the menu button in the top right of Chrome. It won't load the extra JS for touch support of you have.

Both 6 and 9 on the two different devices.

Tick box not checked.