Estimation is a card game played by 4 players (without partnerships) using a standard deck of 52 cards. The gameplay proceeds counterclockwise, and each player's objective is to estimate the number of tricks (known as "Lamas") they can win in each round. The game concludes after 18 rounds.

Cards and Distribution

· At the start of the game, each player is dealt 13 cards. The card ranking from lowest to highest is: 2-3-4-5-6-7-8-9-10-J-Q-K-A.

· The suits are ranked from strongest to weakest: clubs, spades, hearts, diamonds, with clubs being the weakest. Any player can request a "Dash Call" after the cards are dealt and before the bidding starts, indicating their desire not to bid and to avoid winning any tricks during that round. A player receives additional points for successfully avoiding any tricks. After the card distribution and checking for "Dash Call" requests, the game moves to the bidding phase.

Bidding

- Regular Bidding: Used in the first 13 rounds, allowing players the freedom to choose the suit.

- Quick Bidding or "Color": Utilized in the final 5 rounds, predetermined the suit, and players cannot change the suit during bidding.

- The player who won the bidding in the previous round starts the bidding process, and it continues to the next player at the beginning of each round. If a player lacks a certain suit, they must announce "Avoid" to inform other players. Each player, in turn, bids the number of tricks they can win, specifying the suit or requesting a "Dash Call" as mentioned earlier. The winner is determined based on the declared number of tricks, and in case of a tie, the suit type is used to break the tie.

- After determining the bidding winner, other players have the opportunity to estimate the number of tricks they can win, based on the trump suit chosen by the winner, with a maximum limit equal to the winner's estimated number of tricks.

Notes

· If a player bids "Zero" for tricks in the estimation round, it is called a "Dash”.

· Only two players can request a "Dash Call" or "Dash”.

· The total estimated tricks cannot equal 13; if this happens, the last player in the estimation round must choose a different number of tricks to make the total either less or more than 13.

· The last player can opt for "Risk”, "Double Risk”, or even "Triple Risk”. The "Risk" depends on the difference between the total bids and 13.

· If a player estimates the same number of tricks as the winner, it is called a "With”.

· A round is considered "Over" if the total bids exceed 13 and "Under" if the total bids are less than 13.

· A player can change the Tarneeb suit in the quick bidding rounds by requesting a "Super Call”, where the player bids call 8 tricks or more.

How to Play

１.  The player who won the bid throws any card on the table, and other players must play cards of the same suit. The player with the highest card wins the trick and leads the next round.

２.  If a card of the same suit is not available with other players, the player has the option to play a trump card. Trump cards are considered stronger than any other card, and the player who plays the trump card wins the trick, unless a stronger trump card is played.

３.  The round ends when all players have played their cards.

４.  If all players fail to win their estimated number of tricks, no points are scored for that round, and the points for the next round are doubled (Sa’aydeh round).

５.  If this situation occurs again, the round is canceled, and the points for the next round are quadrupled.

Scoring

A player who wins the exact number of tricks they estimated receives the following points:

o 10 points plus the number of tricks won.

o An additional 10 points for the player who bid "Call" or "With”.

o Another 10 points if the player is the sole winner in the round.

o An extra 10 points for "Risk”.

o 25 points for a "Dash Call" if the round is "Over”.

o 33 points for a "Dash Call" if the round is "Under”.

If a player fails to win the estimated number of tricks, the following points are deducted:

o Deduct the number of excess or missing tricks.

o Deduct an additional 10 points if the player bid "Call" or is a "With”.

o Deduct 10 points if the player is the only loser in the round.

o Deduct 10 points for "Risk”.

o Deduct 25 points for a "Dash Call" if the round is "Over”.

o Deduct 33 points for a "Dash Call" if the round is "Under”.