Bohnanza

The name is a pun on the words "bonanza" and "bohn" (German for "bean"). It could thus be translated preserving the pun as "Beananza", although the official English release preserved the name "Bohnanza".

Rules

Setup

Deal a hand of cards to each player to start (exact hand size varies with expansion set and number of players; typically it might be 5 cards). Cards in hand must be kept in the order in which they are dealt at all times.

Players take turns in order. When the deck runs out, the discard pile is reshuffled into it; this happens twice. The game ends the third time the deck runs out. The game ends instantly, as soon as a player needs to take a card from the deck and can't.

Each player starts with two invisible fields in which to plant beans. A third field may be bought by any player at any point during the game for three coins. No player may have more than three fields. Each field may contain any number of bean cards, of any one bean type. If a bean of a type different to those already growing in a field is planted into that field, the beans previously in it get cashed in. A field containing just one bean may not be cashed in by a player who also owns a field containing more than one bean.

Each player also has a trading area.

Cards in the hand are kept hidden. Cards in the trading areas and fields are visible to all players. The number of cards in each treasury is secret, although its presence need not be. The discard pile is face up, but only the top card is visible (the rest being underneath it) and players may not examine the pile.

Turn sequence

During their turn, each player does the following:

1. They must play the first card in their hand (the one at the front, the one dealt to them earliest) into a field. This may result in them having to cash in beans!

2. They may play the next card in their hand into a field.

3. They must take the top two cards from the deck and place them face up into their trading area.

4. Trading opens. Players may make offers and trade cards from (and only from) their hands (but they may offer/trade any card(s) in their hands in any order) and the cards in the active player's trading area. Traded cards go into the recipient's trading area. Trade may only occur with the player whose turn it is. No cards may ever be traded from fields. No cards can ever get placed into a player's hand by trading. No cards which have been traded once may get traded again - once a bean has been traded it must be planted in the field of the person it has been traded with.

5. Trading ends whenever the player whose turn it is decides it should. At end of trading, each player must plant all cards in their trading area into their fields. This may involve cashing in beans, possibly several times; take note of the order in which beans are planted into fields if there are more types of beans being planted than fields they are being planted into.

6. The player ends their turn by drawing cards from the deck, one by one, and placing them at the back of their hand (so they get played last). Again, the exact number of cards drawn here varies. If players started with a hand of 5, three cards are drawn in this stage.

Cashing in

Each bean card carries a list of how many cards of that type are needed in order to obtain one, two, three and four coins when cashing in a field. To cash in a field, a player counts the beans in it and works out the largest amount of coins she can obtain from them. (This may be none at all.) She places that many of the cards face down in her treasury (a coin is drawn on the back of each card). The rest of the cards go on top of the discard pile, face up. This means the deck gets smaller with each reshuffle, and in practice the first time you reshuffle, you are actually halfway through the game). Fields with more than one card must be cashed in in preference to fields with only one card.

For reference: the basic game has 20 of its most common bean, Blue Beans, and 6 of the least common, Garden Beans. 1-3 blue beans are worth 0 coins; 4-5 are worth 1 coin; 6-7 are worth 2 coins; 8-9 are worth 3 coins; 10 or more are worth 4 coins. 1 garden bean on its own is worth nothing; 2 garden beans are worth 2 coins (when sold as a pair), 3 or more garden beans are worth 3 coins (when all sold together). For each even number between 6 and 20, there is one type of bean with exactly that many of it in the deck.

Winning

When the game ends, all players discard all cards not in their fields, and cash in all beans in their fields. The player with the most coins in their treasury wins.