Beat the Dealer

It's a kind of card games with a theme of the TOT,
designed for 2 players.
Fundamentally, its rule is similar to Black Jack.

- Game Flow -
[1]
The order is decided at random,
then cards will be distributed..

[2]
The active player chooses a card
from the hand.

[3]
Add the chosen card to the field,
and calculate the sum total.

The Ace is treated as 1 or 11,
depending on sum of the field.

[4]
Completion of Black Jack is 5 points.
When the sum total exceeds 21,
the competitor gets the difference.

[5]
The order becomes opposite,
and next round will begin.

[6]
After completing all the 4 rounds,
more scored player is the winner.