Blackjack was first played in European casinos many centuries ago and it was later adopted by players from all over the world. The rules have changed slightly and those who prefer the Amaya European blackjack will enjoy the original experience.
The European rules apply mostly to these situations when players can double down or split. For example, you will only be permitted to double down on hard totals of 10 or 11 instead of hard seven, eight or nine.
The additional Reno rule, doesn't allow players from doubling down on hard six, but the house edge is only increased by 0.1% as a result.