The trick-taking game of Nepal, India and Bangladesh: call how many tricks you will take, trump with spades, and play every hand for yourself.
Callbreak is played by four players, each for themselves, with a standard 52-card deck. All the cards are dealt, so everyone has 13. Spades are always trump, and within each suit the ace is highest, down to the two.
Deal and play go counter-clockwise. Starting with the player to the dealer's right, everyone calls how many tricks they will take this deal, from 2 to 12. The same player then leads the first trick.
Follow suit if you can, but you don't have to win the trick. If you can't follow suit, you must play a spade that beats any spade already in the trick. If you can't beat them, you can play any card: a smaller spade or a card from another suit. A spade beats any other card; otherwise the highest card of the suit led wins.
Callbreak, also known as Call Bridge, is a game of tricks, trumps and bidding that is popular in Bangladesh, India and Nepal. It is played by four people with a standard international 52-card pack.
It seems to be related to the North American game Spades, and in Nepal it is described as a four-player game similar to Spades but played without partners. Like Spades, it keeps spades as permanent trumps.
The rules vary from place to place. Some players count a game as exactly five deals, as this version does. Others play a longer game of ten deals, or simply keep playing for as long as they like. Scoring an extra 0.1 point for each trick beyond your call is also a regional variation, and this version uses it.
Callbreak is a free browser version of the traditional South Asian card game, with CPU players, a new daily deal every day and online leaderboards. There's nothing to download and no sign-up.