by czorny
Indeed, there's an issue with how parts of the same rule are placed in the rulebook. To sum this up and make easier to understand:1. If you play standard game your Boatsman can move all vikings of the same color or one viking of each color according to rules of the standard game.
2. If you play advanced game, your Boatsman without tile can move only one viking of any color, but with tile it acts the same way as Boatsman from standard game.
Hope it helps others, who confused with this rule.