Puzzle 3 Solution:

Each of the three Pathways is marked by a different color set of arrows (purple, blue, and green). Direction does not matter. The yellow arrow indicates a second option for the green route which would still get you a Pathway of 5 cards, but has one card fewer than the purely green arrow route (which is the longest Pathway with 6 cards).

Each of the three Pathways is marked by a different color set of arrows (purple, blue, and green). Direction does not matter. The yellow arrow indicates a second option for the green route which would still get you a Pathway of 5 cards, but has one card fewer than the purely green arrow route (which is the longest Pathway with 6 cards).