Count and trade

Count the cards that are gone, then buy, sell or pass on the sum of the hidden ones. As many as you can in 60 seconds, each one scored the moment you answer.

How it works

1. Some cards are gone. A few more are dealt face down, and a market is quoted on their sum (ace 1, jack 11, queen 12, king 13).
2. Buy if the ask is below fair value, sell if the bid is above it, pass if fair value sits inside the quote. Count what's gone first.
3. The best trade scores 10; anything else costs 3. Rounds get harder as you improve: more cards to count and thinner edges.

It trains counting cards and trading on fair value. After every round you see the best answer and why.

Play count and trade

Play with friends or a club

Challenge a friend with a duel link, or run a tournament for a club or class: one link, the same rounds for everyone, one run each, and a live leaderboard.

Also try Bankroll, or the probability puzzles.