ბურაBura trainer
Computer
You

Odds Lab

Set up any position and see how often the computer can beat each lead you could make. It works out every hand the computer could be holding and counts how many of them beat you.

1 The game

Trump suit

2 Tap the cards you know about

Tap once: it's in your hand. Tap again: it's been played (or it's the face-up trump). Tap a third time to clear it. Everything else counts as unknown: it could be in the computer's hand or in the stock.

How many trumps does the computer hold?

Odds quiz

Real positions, a few tricks into a hand. Guess first, then see the exact answer and why. Good players don't calculate this at the table. They've just seen it enough times.

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How Bura works

Two players, a short deck, and one rule that makes the game: you can lead several cards at once as long as they're the same suit. To win the trick, your opponent has to beat every one of them, each with its own card.

Card values

CardA10KQJ9 8 7 6
Points11104320

Rank runs A, 10, K, Q, J, then 9 down to 6 in the 36-card deck. The 10 outranks the king. The 6 to 9 are worth nothing, so both decks hold 120 points in total.

A hand, step by step

  1. Deal. Each player gets 3 (or 5) cards. The next card is turned face up: its suit is trump. It goes under the stock and is the last card drawn.
  2. Lead. Play 1 card, or several of one suit.
  3. Respond. Play the same number of cards. A card is beaten by a higher card of its suit, or by any trump if it isn't a trump. Beat every led card and you take the trick. If you can't, or you'd rather not, you throw the same number of cards and the leader takes everything.
  4. Draw. Refill from the stock, trick winner first, one card at a time. The trick winner leads next.
  5. Declare (3-card only). When you think your tricks hold 31 points, say "enough". Right, you win. Wrong, you lose. If nobody declares, most points after the last card wins.

ბურა and მალიუტკა: a full hand of one suit (3 cards in 3-card, 5 in 5-card) is put down on your turn: when you lead, or right after the other player leads, whatever they led.

Watch the end of the stock: if you're one trump short of ბურა, throwing on purpose can get you the face-up trump, which goes to the trick's loser in the stock's last round. Against that, lead several cards at once: the other player has to throw several, and the stock can't refill them.

Raising the stakes

A match is played to 11 points, or to 7 in short Bura. Many people also play სუხოი (sukhoi): reach 7 while your opponent still has 0 and the match ends right there. Both are options in the top bar. A hand is normally worth 1. On your turn, before you play, you can raise:

Callდავისეჩარიფანჯიშაში
Saiddavisecharipanjishashi
Hand worth23456

Your opponent either accepts, and the hand is worth the new amount, or folds and loses the hand at the old amount. After you raise, only your opponent can raise next. Each raise hands the right to the other side.

When to accept: folding loses the current stake for sure. Playing on wins or loses the new one. Against დავი (1 to 2) you should accept if you win at least 25% of the time from here. Against სე (2 to 3) the bar drops to about 17%, and it keeps falling. The coach shows your chance to win the hand and does this sum for you.

When to raise: when you're clearly ahead. The computer raises at about 70%. In self-play, raising at anywhere from 60 to 80% earned about the same, and far more than never raising.

Variants in this trainer

House rules differ a lot (molodka, three aces, betting with davi/se/chari, who draws first). This trainer uses the most common core. The betting layer isn't modelled.

Baseline odds

Computed live by the same engine the coach uses, for the first trick, when you hold no trumps yourself.

Reading the coach

Computer can beat
Out of every hand the computer could be holding, the share that has a separate beater for each card you lead. This is pure card counting and doesn't depend on how anyone plays.
Exp. pts
The average points this trick swings your way, assuming the computer beats only when that's worth it to them. Sometimes they can beat you but won't, because spending a trump to win a jack is a bad trade.
Best
Expected points, minus the value of the trumps and aces you'd spend, plus a big bonus for tricks that take you to the target. Early in a hand, keeping your trumps is often worth more than a few points now.
Win hand
Once the stock is empty, the coach plays out every possible ending, for every hand the computer could hold, with both sides playing perfectly. This is how often each move ends with you winning.
Declare now is right
3-card variants only. In face-down variants you don't know what was thrown into your pile. The coach works out exactly what those cards could be worth. At 100% you're guaranteed to have the target. In self-play, declaring when only about 50% sure lost clearly more hands than waiting. Being 85 to 95% sure made no measurable difference, so wait for certainty if you can.

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