Label the smallest and second smallest of those topmost disks b0 and b1 respectively. Then b0 can be moved to any of the other k − 1 pegs and b1 to any other except where b0 is stacked, since b0 is the only topmost disk that is smaller than b1
Label the smallest and second smallest of those topmost disks b0 and b1 respectively. Then b0 can be moved to any of the other k − 1 pegs and b1 to any other except where b0 is stacked, since b0 is the only topmost disk that is smaller than b1