Play Canasta against the computer

How a game of Canasta against bots works here: seating them, what they can see, how they decide, and what they leave to you.

A partnership game with bots

Canasta here is the four-handed partnership game, partners opposite. Seats go in the order people sit down — first and third against second and fourth — so when you open a table and add three bots, the second bot to sit down is your partner.

In the lobby choose the target, 3,000 or 5,000 points, and add bots until there are four. Only the host can seat bots, and only before the first deal.

What a bot can see

Its own eleven cards, every meld on the table, the top card of the discard pile and the red threes laid out. Hands are kept on the server, so no bot — your partner included — can see your cards.

Bots take about a second per move. A bot's turn can be several moves — draw, meld, add to a meld, discard — so watch the table rather than only the pile.

How the bots play

A bot draws from the stock unless it can take the pile, and when it can it takes it most of the time if the pile holds two cards or more. It lays down what it can as soon as it can, keeps adding to its side's melds on the way to a canasta, and throws the card doing least for it.

It avoids discarding wild cards and prefers to throw a card with no partner in its hand. What it does not do is hold wild cards back for later, freeze the pile on purpose, or keep track of what the other side is collecting.

Playing with and against them

Because bots meld early, they tend to run short of pairs to take the pile with later in the hand. Keep a few pairs in your hand rather than melding everything, and a big pile is more likely to come your way.

Freezing the pile with a wild card works well against bots: they do not change their discards because of it, and keep throwing cards you may be able to use. And watch what the bot opponents meld — a bot never keeps a rank hidden in its hand for long.

Bots and people together

To partner a friend against two bots, add one bot before your friend sits down and the second after, so your friend takes the third seat. The lobby shows players in seat order, and a bot can be removed and added again to move it to the end.

After each hand the count is shown and everybody presses "Ready for the next hand". If somebody leaves a bot takes their hand; if their connection drops the seat is held for twenty-five seconds and handed back when they return.