Question 9
Alice sends Bob this grid and the hint “2L 1U 6R 2D 1L 2D 7L 1U 1R 2U 1R”.
U,D,L,R mean up,down,left,right. Starting at the central black square, Bob follows the instructions and records the letter at each destination cell, if any. For example,2L reaches R; then 1U reaches a blank cell; continue in the same way. What is Alice’s message?
U,D,L,R mean up,down,left,right. Starting at the central black square, Bob follows the instructions and records the letter at each destination cell, if any. For example,2L reaches R; then 1U reaches a blank cell; continue in the same way. What is Alice’s message?