Backgammon Spielregeln Backgammon: Die Regeln
Ein Stein kann nur auf einen offenen Punkt gesetzt werden, einen, der nicht von zwei oder mehr gegnerischen Steinen besetzt ist. Die Zahlen auf den zwei Würfeln bilden separate Bewegungen. Ein Spieler, der einen Pasch würfelt, kann die angezeigte Augenzahl viermal ziehen. jastr.co › rules › German › rules. Spielanleitung/Spielregeln Backgammon (Anleitung/Regel/Regeln), BrettspielNetz.
Backgammon ist ein klassisches Brettspiel für zwei Personen. Es geht darum, seine 15 Steine vom Spielfeld abzutragen. Bei Backgammon. Ein Spieler, der einen Pasch würfelt, kann die angezeigte Augenzahl viermal ziehen. jastr.co › rules › German › rules. Ziel des Spiels. In this version, each round is its own game, with no point scoring involved. Some surviving artworks read article " Cardsharps " by Caravaggio the backgammon board is in the lower left and " The Triumph of Death " by Pieter Bruegel the Elder the backgammon board is in the lower right. Acey-deucey Gul bara Plakoto Sugoroku Tapa. Online cheating has therefore become extremely difficult.
If moves can be made according to either one die or the other, but not both, the higher number must be used.
If one die is unable to be moved, but such a move is made possible by the moving of the other die, that move is compulsory.
In the course of a move, a checker may land on any point that is unoccupied or is occupied by one or more of the player's own checkers.
It may also land on a point occupied by exactly one opposing checker, or "blot". In this case, the blot has been "hit", and is placed in the middle of the board on the bar that divides the two sides of the playing surface.
A checker may never land on a point occupied by two or more opposing checkers; thus, no point is ever occupied by checkers from both players simultaneously.
Checkers placed on the bar must re-enter the game through the opponent's home board before any other move can be made.
A roll of 1 allows the checker to enter on the point opponent's 1 , a roll of 2 on the point opponent's 2 , and so forth, up to a roll of 6 allowing entry on the point opponent's 6.
Checkers may not enter on a point occupied by two or more opposing checkers. Checkers can enter on unoccupied points, or on points occupied by a single opposing checker; in the latter case, the single checker is hit and placed on the bar.
More than one checker can be on the bar at a time. A player may not move any other checkers until all checkers on the bar belonging to that player have re-entered the board.
If the opponent's home board is completely "closed" i. When all of a player's checkers are in that player's home board, that player may start removing them; this is called "bearing off".
A roll of 1 may be used to bear off a checker from the 1-point, a 2 from the 2-point, and so on. If all of a player's checkers are on points lower than the number showing on a particular die, the player must use that die to bear off one checker from the highest occupied point.
When bearing off, a player may also move a lower die roll before the higher even if that means the full value of the higher die is not fully utilized.
For example, if a player has exactly one checker remaining on the 6-point, and rolls a 6 and a 1, the player may move the 6-point checker one place to the 5-point with the lower die roll of 1, and then bear that checker off the 5-point using the die roll of 6; this is sometimes useful tactically.
As before, if there is a way to use all moves showing on the dice, by moving checkers within the home board or bearing them off, the player must do so.
If the opponent has not yet borne off any checkers when the game ends, the winner scores a gammon , which counts for double stakes.
If the opponent has not yet borne off any checkers and has some on the bar or in the winner's home board, the winner scores a backgammon , which counts for triple stakes.
To speed up match play and to provide an added dimension for strategy, a doubling cube is usually used. The doubling cube is not a die to be rolled, but rather a marker with the numbers 2, 4, 8, 16, 32, and 64 inscribed on its sides, to denote the current stake.
At the start of each game, the doubling cube is placed on the midpoint of the bar with the number 64 showing; the cube is then said to be "centered, on 1".
When the cube is centered, either player may start their turn by proposing that the game be played for twice the current stakes. Their opponent must either accept "take" the doubled stakes or resign "drop" the game immediately.
Whenever a player accepts doubled stakes, the cube is placed on their side of the board with the corresponding power of two facing upward, to indicate that the right to re-double belongs exclusively to that player.
For instance, if the cube showed the number 2 and a player wanted to redouble the stakes to put it at 4, the opponent choosing to drop the redouble would lose two, or twice the original stake.
There is no limit on the number of redoubles. Although 64 is the highest number depicted on the doubling cube, the stakes may rise to , , and so on.
In money games, a player is often permitted to " beaver " when offered the cube, doubling the value of the game again, while retaining possession of the cube.
A variant of the doubling cube "beaver" is the " raccoon ". Players who doubled their opponent, seeing the opponent beaver the cube, may in turn then double the stakes once again "raccoon" as part of that cube phase before any dice are rolled.
The opponent retains the doubling cube. White doubles Black to 2 points, Black accepts then beavers the cube to 4 points; White, confident of a win, raccoons the cube to 8 points, while Black retains the cube.
Such a move adds greatly to the risk of having to face the doubling cube coming back at 8 times its original value when first doubling the opponent offered at 2 points, counter offered at 16 points should the luck of the dice change.
Some players may opt to invoke The Murphy rule or the "automatic double rule". If both opponents roll the same opening number, the doubling cube is incremented on each occasion yet remains in the middle of the board, available to either player.
The Murphy rule may be invoked with a maximum number of automatic doubles allowed and that limit is agreed to prior to a game or match commencing.
When a player decides to double the opponent, the value is then a double of whatever face value is shown e.
The Murphy rule is not an official rule in backgammon and is rarely, if ever, seen in use at officially sanctioned tournaments. The Jacoby rule , named after Oswald Jacoby , allows gammons and backgammons to count for their respective double and triple values only if the cube has already been offered and accepted.
This encourages a player with a large lead to double, possibly ending the game, rather than to play it to conclusion hoping for a gammon or backgammon.
The Jacoby rule is widely used in money play but is not used in match play. The Crawford rule , named after John R.
Crawford , is designed to make match play more equitable for the player in the lead. If a player is one point away from winning a match, that player's opponent will always want to double as early as possible in order to catch up.
Whether the game is worth one point or two, the trailing player must win to continue the match.
To balance the situation, the Crawford rule requires that when a player first reaches a score one point short of winning, neither player may use the doubling cube for the following game, called the Crawford game.
After the Crawford game, normal use of the doubling cube resumes. The Crawford rule is routinely used in tournament match play.
If the Crawford rule is in effect, then another option is the Holland rule , named after Tim Holland , which stipulates that after the Crawford game, a player cannot double until after at least two rolls have been played by each side.
It was common in tournament play in the s but is now rarely used. There are many variants of standard backgammon rules.
Some are played primarily throughout one geographic region, and others add new tactical elements to the game.
Variants commonly alter the starting position, restrict certain moves, or assign special value to certain dice rolls, but in some geographic regions even the rules and directions of the checkers' movement change, rendering the game fundamentally different.
Acey-deucey is a variant of backgammon in which players start with no checkers on the board, and must bear them on at the beginning of the game.
The roll of is given special consideration, allowing the player, after moving the 1 and the 2, to select any desired doubles move. A player also receives an extra turn after a roll of or of doubles.
Hypergammon is a variant of backgammon in which players have only three checkers on the board, starting with one each on the , and points.
The game has been strongly solved , meaning that exact equities are available for all 32 million possible positions. Nard is a traditional variant from Persia in which basic rules are almost the same except that even a single piece is 'safe'.
All 15 pieces start on the 24th wedge. Nackgammon is a variant of backgammon invented by Nick "Nack" Ballard  in which players start with one less checker on the six point and midpoint and two checkers on the 23 point.
Russian backgammon is a variant described in as: " In this variant, doubles are more powerful: four moves are played as in standard backgammon, followed by four moves according to the difference of the dice value from 7, and then the player has another turn with the caveat that the turn ends if any portion of it cannot be completed.
Gul Bara and Tapa are also variants of the game popular in southeastern Europe and Turkey. The play will iterate among Backgammon, Gul Bara, and Tapa until one of the players reaches a score of 7 or 5.
Coan ki is an ancient Chinese board game that is very similar. Plakoto , Fevga and Portes are three versions of backgammon played in Greece.
Together, the three are referred to as Tavli. For instance, only allowing a maximum of five checkers on any point Britain  or disallowing "hit-and-run" in your home board Middle East.
Backgammon has an established opening theory , although it is less detailed than that of chess.
The tree of positions expands rapidly because of the number of possible dice rolls and the moves available on each turn.
Recent computer analysis has offered more insight on opening plays, but the midgame is reached quickly. After the opening, backgammon players frequently rely on some established general strategies, combining and switching among them to adapt to the changing conditions of a game.
A blot has the highest probability of being hit when it is 6 points away from an opponent's checker see picture. Strategies can derive from that.
The most direct one is simply to avoid being hit, trapped, or held in a stand-off. A "running game" describes a strategy of moving as quickly as possible around the board, and is most successful when a player is already ahead in the race.
As the game progresses, this player may gain an advantage by hitting an opponent's blot from the anchor, or by rolling large doubles that allow the checkers to escape into a running game.
The "priming game" involves building a wall of checkers, called a prime, covering a number of consecutive points.
This obstructs opposing checkers that are behind the prime. A checker trapped behind a six-point prime cannot escape until the prime is broken.
Because the opponent has difficulty re-entering from the bar or escaping, a player can quickly gain a running advantage and win the game, often with a gammon.
A "backgame" is a strategy that involves holding two or more anchors in an opponent's home board while being substantially behind in the race.
The backgame is generally used only to salvage a game wherein a player is already significantly behind. Using a backgame as an initial strategy is usually unsuccessful.
For example, players may position all of their blots in such a way that the opponent must roll a 2 in order to hit any of them, reducing the probability of being hit more than once.
Many positions require a measurement of a player's standing in the race, for example, in making a doubling cube decision, or in determining whether to run home and begin bearing off.
The minimum total of pips needed to move a player's checkers around and off the board is called the "pip count".
The difference between the two players' pip counts is frequently used as a measure of the leader's racing advantage.
Players often use mental calculation techniques to determine pip counts in live play. Backgammon is played in two principal variations, "Money" and "Match" play.
Money play means that every point counts evenly and every game stands alone, whether money is actually being wagered or not.
The format has a significant effect on strategy. In a match, the objective is not to win the maximum possible number of points, but rather to simply reach the score needed to win the match.
For example, a player leading a 9-point match by a score of 7—5 would be very reluctant to turn the doubling cube, as their opponent could take and make a costless redouble to 4, placing the entire outcome of the match on the current game.
Conversely, the trailing player would double very aggressively, particularly if they have chances to win a gammon in the current game.
In money play, the theoretically correct checker play and cube action would never vary based on the score. In , Emmet Keeler and Joel Spencer considered the question of when to double or accept a double using an idealized version of backgammon.
In their idealized version, the probability of winning varies randomly over time by Brownian motion , and there are no gammons or backgammons.
To reduce the possibility of cheating, most good quality backgammon sets use precision dice and a dice cup.
Online cheating has therefore become extremely difficult. In State of Oregon v Barr , a court case pivotal to the continued widespread organised playing of backgammon in the US, the State argued backgammon is a game of chance and that it was therefore subject to Oregon's stringent gambling laws.
Paul Magriel was a key witness for the defence, contradicting Dr. Roger Nelson, the expert prosecution witness, by saying, "Game theory, however, really applies to games with imperfect knowledge, where something is concealed, such as poker.
Backgammon is not such a game. Everything is in front of you. The person who uses that information in the most effective manner will win.
Walker concluded that backgammon is a game of skill, not a game of chance, and found the defendant, backgammon tournament director Ted Barr, not guilty of promoting gambling.
Early Muslim scholars forbade backgammon. Enthusiasts have formed clubs for social play of backgammon. A backgammon chouette permits three or more players to participate in a single game, often for money.
One player competes against a team of all the other participants, and positions rotate after each game. Chouette play often permits the use of multiple doubling cubes.
Backgammon clubs may also organize tournaments. Large club tournaments sometimes draw competitors from other regions, with final matches viewed by hundreds of spectators.
Winners at major tournaments may receive prizes of tens of thousands of dollars. Starting in January , tournament directors began awarding GammonPoints,  a free points registry for tournament directors and players, with GammonPoint awards based on the number of players and strength of field.
The first world championship competition in backgammon was held in Las Vegas , Nevada in Tim Holland was declared the winner that year and at the tournament the following year.
For unknown reasons, there was no championship in , but in , Tim Holland again won the title. In , Lewis Deyong, who had promoted the Bahamas World Championship for the prior three years, suggested that the two events be combined.
By the 21st century, the largest international tournaments had established the basis of a tour for top professional players.
Major tournaments are held yearly worldwide. PartyGaming sponsored the first World Series of Backgammon in from Cannes and later the 'Backgammon Million' tournament held in the Bahamas in January with a prize pool of one million dollars, the largest for any tournament to date.
The event was recorded for television in Europe airing on Eurosport. In , the WBA collaborated with the online backgammon provider Play65 for the season of the European Backgammon Tour and with "Betfair" in When backgammon is played for money , the most common arrangement is to assign a monetary value to each point, and to play to a certain score, or until either player chooses to stop.
The stakes are raised by gammons, backgammons, and use of the doubling cube. Backgammon is sometimes available in casinos.
Before the commercialization of artificial neural network programs, proposition bets on specific positions were very common among backgammon players and gamblers.
Backgammon software has been developed not only to play and analyze games, but also to facilitate play between humans over the internet.
Dice rolls are provided by random or pseudorandom number generators. Real-time online play began with the First Internet Backgammon Server in July ,   but there are now a range of options;  many of which are commercial.
Backgammon has been studied considerably by computer scientists. Neural networks and other approaches have offered significant advances to software for gameplay and analysis.
The first strong computer opponent was BKG 9. Early versions of BKG played badly even against poor players, but Berliner noticed that its critical mistakes were always at transitional phases in the game.
He applied principles of fuzzy logic to improve its play between phases, and by July , BKG 9. It won the match, 7—1, becoming the first computer program to defeat a world champion in any board game.
Berliner stated that the victory was largely a matter of luck, as the computer received more favorable dice rolls. In the late s, backgammon programmers found more success with an approach based on artificial neural networks.
Its neural network was trained using temporal difference learning applied to data generated from self-play. Tesauro proposed using rollout analysis to compare the performance of computer algorithms against human players.
The rollout score of the human or the computer is the difference of the average game results by following the selected move versus following the best move, then averaged for the entire set of taken moves.
The strength of these programs lies in their neural networks' weights tables, which are the result of months of training. Without them, these programs play no better than a human novice.
For the bearoff phase, backgammon software usually relies on a database containing precomputed equities for all possible bearoff positions.
Computer-versus-computer competitions are also held at Computer Olympiad events. The artifacts included two dice and 60 checkers, and the set is believed to be to years older than the Royal Game of Ur.
On the board found in Shahr-e Sukhteh the fields are fashioned by the coils of a snake. Touraj Daryaee —on the subject of the first written mention of early precursors of backgammon—writes:.
The use of dice for the game is another indication of its Indic origin, since dice and gambling were a favorite pastime in ancient India.
According to the historical legend, the Indian king Dewisarm sends his minister Taxritos to Persia with the game of chess , and a letter challenging Sasanian King Khosrow I to solve the riddle or rationale for the game.
Khosrow asks for three days to decipher the game, but initially no-one in the court is able to make any progress. On the third day, Khosrow's minister, Wuzurgmihr, successfully rises and explains the logic of the game.
As a reciprocal challenge, Wuzurgmihr constructs the game of backgammon and delivers it to the Indian king who is unable to decipher the game.
In the 11th century Shahnameh , the Persian poet Ferdowsi credits Burzoe with the invention of the tables game nard in the 6th century.
He describes an encounter between Burzoe and a Raja visiting from India. The Raja introduces the game of chess , and Burzoe demonstrates nard , played with dice made from ivory and teak.
Murray details many versions of backgammon; modern Nard is noted there as being the same as backgammon and maybe dating back to — AD in the Babylonian Talmud,  although others believe the Talmud references the Greek race game Kubeia.
The history of backgammon can be traced back nearly 5, years to its origins in Mesopotamia modern-day Iraq. Modern Iraqis continue to enjoy playing the game.
It used tetrahedral dice. Spielregeln Backgammon:. Weiterhin gibt es noch die Bar in der Mitte des Spielbretts. Wenn ein Spieler alle seine Steine in seinem Home versammelt hat, darf er die Steine ganz ins Aus herauswürfeln.
Wer zuerst alle seine Steine herauswürfelt, hat gewonnen. Jeder würfelt mit zwei Würfeln Das erledigt wie immer natürlich Brettspielnetz.
Für jeden Würfel darf er einen eigenen Stein um so viele Plätze in seiner Zugrichtung weiterbewegen wie Augen gewürfelt wurden.
Hat der Spieler einen Pasch gewürfelt, d. Der Stein darf dabei nur auf Felder ziehen, die frei, bereits von eigenen Steinen belegt oder mit nur einem gegnerischen Stein besetzt sind.
Falls ein Stein auf einen einzelnen gegnerischen Stein trifft, wird der gegnerische Stein geschlagen und auf der Bar in der Mitte des Spielbretts abgelegt.
Wiedereinsetzen geschlagener Steine Der gegnerische Spieler muss mit diesem Stein dann wieder ganz neu beginnen. Solange ein Spieler auf der Bar Steine stehen hat, muss er diese zuerst wieder ins Spiel bringen , ehe er mit anderen Steinen ziehen darf.
Hat der Spieler z. Feld setzen. Gezählt wird hierbei in der eigenen Spielrichtung. Kann kein Stein gesetzt werden, so verfällt der Wurf und der Gegner ist am Zug.
Bei Brettspielnetz ist der Gegner sofort wieder an der Reihe, da der Wurf eines Spielers auf der Bar geprüft wird, ob er überhaupt Steine setzen kann.