21 - super fun Twenty-One game

Rules
There are 11 cards in deck (from 1 to 11), at start of game you and opponent have two cards, each turn you're picking an action Hit/No more, on 'Hit' you're tacking one more card and turn goes to an opponent, on 'No more' action you're just passing turn to an opponent. The main goal of the game to have at the end more points then has opponent (points = summ of all numbers on cards in your hand), but not more then 21. End of game happen when you've used all cards in deck or you and opponent pick 'No more' action.
There are four modes:
Classic - default, rules as described
To two wins - Classic, but to two wins :)
With powers - PRO mode, we've added some special abilities to make game more fun ;)
With powers to two wins - I guess you've already understand what is it :D
That's it, so easy! Good luck!