0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 green 1 yellow 1 blue 2 red 2 yellow 2 green 3 blue 3 red 3 white 1 red 1 white 1 black 1 green 1 black 1 blue 1 yellow 3 white 3 blue 1 white 1 white 2 black 2 yellow 2 red 2 black 1 green 1 black 2 red 2 white 1 green 1 blue 2 black 2 white 3 blue 3 blue 1 black 1 white 1 green 1 blue 2 green 2 yellow 1 red 1 black 1 white 3 blue 2 yellow 2 green 2 green 1 red 1 yellow 2 black 2 red 2 red 1 yellow 1 white 1 red 3 black 3 yellow 1 red 2 green 2 red 2 blue 2 black 2 black 3 white 3 yellow 3 green 3 green 2 black 2 blue 2 yellow 2 data/ticket-to-ride/first-journey-europe.yaml