KA-0028
about 135sSeven cups all stand upside down. In one move you must turn over exactly two cups. Can all seven ever stand the right way up?
Loading…
Tap a speaker to listen. Then try saying it yourself! Tap it again to stop.
Loading…
Needs an idea, not just a procedure.
3 in a row to finish this ladder.
0/7 solvedSeven cups all stand upside down. In one move you must turn over exactly two cups. Can all seven ever stand the right way up?