Sixty-Six
The classic two-player card game, right in your browser. Your opponent is a bot that taught itself the game in 33 million hands against itself.
What it is about
24 cards, two players
The deck has ace, ten, king, queen, jack and nine in four suits. Each player holds six cards; the rest lies on the table as the stock.
Reach 66 and say so
Tricks earn card points, and king plus queen of one suit add 20 or 40. The first to hold 66 points and declare it wins the hand.
A match goes to 7
Depending on the margin, a won hand scores 1, 2 or 3 game points. The first to 7 game points wins the match.
What the cards are worth
All 24 cards together hold 120 points. So you need a little more than half of them for 66, or less if you meld.
11
10
4
3
2
0
Four opponents to choose from
- Easy
- Plays by rules of thumb and makes deliberate mistakes.
- Medium
- Rules of thumb, with exact calculation at the end.
- Strong
- Plays out hundreds of possible card distributions for every move.
- Neural
- A neural network trained by pure self-play. It wins 55% of hands against “Strong” and decides within a few milliseconds.