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Renju opening pattern is a Renju position with 3 moves made. All debut classifications in Renju are based on patterns.
| | This article needs additional citations for verification .(June 2021) |
Renju opening pattern is a Renju position with 3 moves made. All debut classifications in Renju are based on patterns.
Since the second move is to be played in the center 3x3 square, the white stone must be adjacent (vertically, horizontally or diagonally) to the first move. It is clear that due to symmetry any legal opening pattern will fall into one of the following categories:
Due to symmetry there are 13 possibilities for the 3rd move as shown on a picture. 1st move is solid black circle, 2nd move is white circle, possible openings are shown enumerated. Brief evaluation for an old RIF opening rule follows.
Due to symmetry there are 13 possibilities for the 3rd move as shown on a picture. 1st move is solid black circle, 2nd move is white circle, possible openings are shown enumerated. Brief evaluation for an old RIF opening rule follows.
Gomoku, also called Five in a Row, is an abstract strategy board game. It is traditionally played with Go pieces on a Go board. It can be played using the 15×15 board or the 19×19 board. Because pieces are typically not moved or removed from the board, gomoku may also be played as a paper-and-pencil game. The game is known in several countries under different names.
Pente is an abstract strategy board game for two or more players, created in 1977 by Gary Gabrel. A member of the m,n,k game family, Pente stands out for its custodial capture mechanic, which allows players to "sandwich" pairs of stones and capture them by flanking them on either side. This changes the overall tactical assessments players face when compared to pure placement m,n,k games such as Gomoku.
Chess strategy is the aspect of chess play concerned with evaluation of chess positions and setting of goals and long-term plans for future play. While evaluating a position strategically, a player must take into account such factors as the relative value of the pieces on the board, pawn structure, king safety, position of pieces, and control of key squares and groups of squares. Chess strategy is distinguished from chess tactics, which is the aspect of play concerned with the move-by-move setting up of threats and defenses. Some authors distinguish static strategic imbalances, which tend to persist for many moves, from dynamic imbalances, which are temporary. This distinction affects the immediacy with which a sought-after plan should take effect. Until players reach the skill level of "master", chess tactics tend to ultimately decide the outcomes of games more often than strategy does. Many chess coaches thus emphasize the study of tactics as the most efficient way to improve one's results in serious chess play.
The knight is a piece in the game of chess and is represented by a horse's head and neck. Each player starts with two knights, which are located between the rooks and bishops in the standard starting position.
Go is an abstract strategy board game for two players in which the aim is to surround more territory than the opponent. The game was invented in China more than 2,500 years ago and is believed to be the oldest board game continuously played to the present day. A 2016 survey by the International Go Federation's 75 member nations found that there are over 46 million people worldwide who know how to play Go and over 20 million current players, the majority of whom live in East Asia.
Renju is the professional variant of gomoku. It was named renju by Japanese journalist Ruikou Kuroiwa (黒岩涙香) on December 6, 1899 in a Japanese newspaper Yorozu chouhou (萬朝報). The name "renju" comes from the Japanese language, and means "connected pearls" in Japanese. The game is played with black and white stones on a 15×15 gridded go board.
A wallpaper group is a mathematical classification of a two-dimensional repetitive pattern, based on the symmetries in the pattern. Such patterns occur frequently in architecture and decorative art, especially in textiles and tiles as well as wallpaper.
The Vienna Game is an opening in chess that begins with the moves:
Petrov's Defence or the Petrov Defence is a chess opening characterised by the following moves:
The Four Knights Game is a chess opening that begins with the moves:
In chess, compensation is the typically short-term positional advantages a player has in exchange for typically material disadvantage. Short term advantages involve initiative and attack.
The exchange in chess refers to a situation in which one player exchanges a minor piece for a rook. The side which wins the rook is said to have won the exchange, while the other player has lost the exchange, since the rook is usually more valuable. Alternatively, the side that has won the rook is up the exchange, and the other player is down the exchange. The opposing captures often happen on consecutive moves, although this is not strictly necessary. It is generally detrimental to lose the exchange, although occasionally one may find reason to purposely do so; the result is an exchange sacrifice. The minor exchange is an uncommon term for the exchange of a bishop and knight.
In chess, there is a general consensus among players and theorists that the player who makes the first move (White) has an inherent advantage. Since 1851, compiled statistics support this view; White consistently wins slightly more often than Black, usually scoring between 52 and 56 percent. White's winning percentage is about the same for tournament games between humans and games between computers; however, White's advantage is less significant in blitz games and games between novices.
The Semi-Italian Opening is one of Black's responses to the Italian Game. It begins with the moves:
Taraguchi opening rule is a renju opening rule. It was proposed by Yusui Yamaguchi as an advancement of a Tarannikov opening rule and therefore it was named with a combination of these two names. It has an enhancement, Taraguchi-N opening rule.
Yamaguchi opening rule is a renju opening rule. It was developed by Japanese player Yusui Yamaguchi.
RIF opening rule is a renju opening rule. It was adopted by the Renju International Federation (RIF) in 1996 as an upgrade to Swap opening rule and was an official rule for Renju World Championships from 1996 till 2008.
Soosõrv opening rule is a renju opening rule. It was proposed by Estonian player Ants Soosõrv.
Swap opening rule is a renju opening rule. It was adopted by RIF in the late 80s and was an official rule for Renju World Championships from 1989 till 1995.