Ooops, last move should be(x-1) chips to #2. Another simple solution is for Monty to give Ian 12,13,or 14 chips, making 3 stacks of 4, leading to easy solution
Seems to me that TimeSpaceLighForce's would work, but moving all but 1 chip from the pile is basically the same as saying move all the chips. BTW, an easier and faster solution would be: Move 4 chips from #1 to #3 Move all but 1 chip from #2 to #3 Move (12-x) chips from #3 to #2 But again too simpla a solution for a Bonavona puzzle
I'm not sure I would accept this challange. But if I had to , place two glasses on scale. Either these two, or the other two weigh 2A+x. We now know that the poison is one of of the two heavier pairs. Now the hard part : drink one of these glasses. If you don't die, you know the other glass is poison. If you die, you go to your grave knowing you were also correct