#1 · Hjallti
26 Oct 2011
A student of mine asked if the number was still there underneath the stone that captured it.
At first sight, this would give rise to 2 new possible variants:
If you move a stone upon another stone you pile it on that stone. When moving again that stone reappears on the original spot.
(second possibility is that it moves along with the capturing stone, but that creates no new game compared to the original rules; unless you can choose how many 'captured stones you take along')