The only variant of tafl where a relatively
unambiguous has survived into modern times is
tablut, the
Sámi variant of the game, which was recorded by
Linnaeus during his
expedition to Lapland in 1732. As for the medieval game, no complete, unambiguous description of the rules exists, but the king's objective was to escape to (variously) the board's periphery or corners, while the greater force's objective was to capture him. Although the size of the board and the number of pieces varied, all games involved a distinctive 2:1 ratio of pieces, with the lesser side having a king-piece that started in the centre. There is some controversy over whether some tafl games (i.e. Hnefatafl and Tawlbwrdd) may have employed
dice.
Alea evangelii Alea evangelii, which means "game of the gospels", was described, with a drawing, in the 12th-century manuscript 122 of
Corpus Christi College, Oxford, from
Anglo-Saxon England. It was played on a 19×19 board of intersections. The manuscript describes the layout of the board as a religious
allegory, but it is clear that this was a game in the Tafl family.
Ard Rí Ard Rí (Gaelic for 'High King') was a Scottish tafl variant played on a 7×7 board with a king and eight defenders against sixteen attackers. This is the least documented of the known tafl variants. One of the generally accepted rules, the king escaping to any edge square and not just to any corner square, gives the defending side an insurmountable advantage. This advantage is so strong that the game is
solved, with the king always able to escape and thus the defender will always win.
Brandubh Brandubh (or brandub) () was the Irish form of tafl. From two poems it is known that it was played with five men against eight, and that one of the five was a "Branán", or chief. A number of 7×7 boards have been found, the most famous being the elaborate wooden board found at
Ballinderry in 1932, featuring holes for pegged pieces, possibly to allow for portability of the game. The name
brandubh means "black raven". Original rules were not found, but using these 7×7 boards, the text of the two poems and the tablut rules as a basis, the World Tafl Federation was able to reconstruct balanced rules validated by several tests. Despite its small size board and the speed of the games, Brandubh offers an undeniable tactical and strategic exercise in which the first mistake very often leads to defeat. The small number of pieces means that each of them must often simultaneously defend and attack: it is therefore easy to forget one of these tasks if one focuses too much on the other. As in the great games of Tafl, sacrifices are useful, especially for the defenders, but with only four pieces, it is important not to weaken the king too early in the game.
Hnefatafl Hnefatafl (sometimes now referred to as
Viking chess) was a popular game in medieval
Scandinavia and was mentioned in several of the Norse sagas. Some of these saga references have contributed to controversy over the possible use of dice in playing hnefatafl. The rules of the game were never explicitly recorded, and only playing pieces and fragmentary boards are extant, so it is not known for sure how the game was played. If dice were in fact used, nothing has been recorded about how they were employed. Archaeological and literary sources indicate hnefatafl may have been played on a 13×13 or an 11×11 board. Hnefatafl became a popular game in Northern Europe during the Viking era (end of the 8th century to 1000 CE), a turbulent time full of conflicts. When chess became a popular game during the Middle Ages, the rules of hnefatafl were forgotten over time. Hnefatafl was particularly popular in Nordic countries and followed the Viking civilization to other parts of Europe, primarily to the British Isles and the Viking country of
Garðaríki in what is now part of Russia. The game developed differently at different locations. Archaeologists have found editions in places such as Ireland and Ukraine. Hnefatafl literally translates to "fist table", from the Old Norse (equivalently in modern Icelandic)
hnef, 'fist', and
tafl, 'table'. Different innovations were made to create a game that favoured the defender side less, such as limiting the king's escape possibilities to the corners (instead of the entire edge of the board), making the king "weaponless" (unable to participate in capture), making the initial starting points of the attackers inaccessible for the king, and making it easier to capture the king against the corner fields of the board. Today, many different versions of modern hnefatafl are in play – both online and on physical boards that are sold commercially. One variant used in tournaments is Copenhagen hnefatafl, which also features a "shield wall" mechanism to capture several soldiers at once, and an "exit fort" rule that enables the king to escape on the edge while otherwise being limited to escape in the corners.
Tablut This variant, from
Sápmi, is the best documented historical tafl variant. It is unique among tafl games in that it is known to have still been played in the 18th century. It may also have survived into the late 19th century. P. A. wrote that the Sámi played a chess-like game where the pieces were called "Swedes and Russians", which follows Sámi tafl terminology.
Carl Linnaeus recorded the rules of tablut and a drawing of the board and pieces in his journal, during his 1732 "
Expedition to Lapland" where he travelled in the area of the
Lule Sámi – along the
Lule River on the Swedish side of the border, and in
Salten on the
Dano-Norwegian side of the border. The game may have been called something other than tablut by the Sámi, since the word (also rendered ) simply means "to play board games". Linnaeus likely misunderstood the word describing the general activity as the name of the game. However, tablut has been established as its modern name, since no other name for it is known. For the same reason, another traditional Sámi board game is today called or which similarly just means "game board" and "playing a board game". The game was played on a 9×9 mat of embroidered reindeer hide. In his diary, , Linnaeus explained that the players referred to the defending pieces as "
Swedes" and the attacking pieces as "
Muscovites". The name of the latter pieces reflect the Grand Duchy of Moscow, a regional rival of Sweden. Linnaeus does not describe the pieces as being differently colored, but his drawing shows that one side's pieces are distinguished by being notched (the Muscovites). The translation of the tablut rules (which was done by a Swedish merchant in London, Carl Troilius) had many errors which would become an issue not only for playing tablut, but also for the subsequent attempts to reconstruct other historic tafl games on the basis of the tablut rules. The central mistake in Troilius' translation is that according to these rules, four attackers are always needed to capture the king, whereas the original rules only demand two, except in special cases. The following rules are based on the modern translations of John C. Ashton (2007), Nicolas Cartier (2011) and Olli Salmi (2013):
Warning rules • If the king should ever have an unimpeded path to the edge of the board, he must call out (modern spelling: ), meaning "opening" or "hole", and if he has two paths of escape, then he must call out (modern spelling. ) (cf. "
check" and "
checkmate" in chess).
Tawlbwrdd This variant (pronounced ) was played in
Wales. It is described as being played with 8 pieces on the king's side and 16 on the attacker's side. The rules were taken from an incomplete account of the game by Robert ap Ifan, with a drawing in a manuscript dated 1587, and the gaps were filled in by using Tablut rules. His version was played on an 11×11 board with 12 pieces on the king's side and 24 pieces on the opponent's side. His passage states: The above tawlbwrdd should be played with a king in the centre and twelve men in the places next to him, and twenty-four men seek to capture him. These are placed, six in the centre of each side of the board and in the six central positions. And two move the men in the game, and if one [piece] belonging to the king comes between the attackers, he is dead and is thrown out of the game, and the same if one of the attackers comes between two of the king's men in the same manner. And if the king himself comes between two of the attackers, and if you say 'Watch your king' before he moves to that space, and he is unable to escape, you capture him. If the other says 'gwrheill'[?] and goes between two, there is no harm. If the king can go along the [illegible] line, that side wins the game.
Other modern games in the tafl family Certain modern board games not generally referred to as "tafl", "tablut" or "hnefatafl" have nevertheless been based on tablut rules, or the rules of other tafl games reconstructed on the basis of tablut. They bear significant resemblance to the other tafl games, but with some important differences. Around 1960,
Milton Bradley published
Swords and Shields, which was essentially Tablut as recorded by Linnaeus and erroneously translated by Troilius, but with the Swedes transformed into shields (with a king shield) and the Muscovites transformed into swords.
Breakthru was developed in the 1960s as part of the
3M bookshelf game series. It features tafl-like symmetry, but with twelve defenders plus one "flagship" (cf.
king) pitted against twenty attackers upon a tiered board, so that the objective of the defenders is to escort the flagship from the centre to the outer zone of the board. Apart from the distinction of the inner zone and outer zone, there are no distinctive spaces on the Breakthru board. Breakthru also features a distinctive double move, whereas no evidence points to such a move in any of the historical games.
Thud, a modern game inspired by a series of fantasy novels by
Terry Pratchett (which in turn were inspired by the historical tafl games, as reflected in the game's Dwarfish name,
Hnaflbaflsniflwhifltafl), also features the general symmetry of tafl games, although it is played on an octagonal board with only eight defenders pitted against thirty-two attackers. Thud also features a "Thudstone" (cf.
konakis), but no kingpiece. There are also important differences in the moves and attacks in Thud. ==Balance of play==