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Although outside of captivity rooks have not shown probable tool-use, captive rooks have shown the ability to use and understand puzzles. One of the most commonly tested puzzles is the Trap-Tube Problem. Rooks learned how to pull their reward out of the tube while avoiding a trap on one side. [20] [21]
Corvidae is a cosmopolitan family of oscine passerine birds that contains the crows, ravens, rooks, magpies, jackdaws, jays, treepies, choughs, and nutcrackers. [1] [2] [3] In colloquial English, they are known as the crow family or corvids. Currently, 139 species are included in this family.
Rooks are usually similar in appearance to small castles; thus, a rook is sometimes called a "castle", [18] though modern chess literature rarely, if ever, uses this term. [19] In some languages, the rook is called a ship: Thai เรือ (reūa), Armenian Նավակ (navak), Russian ладья (ladya), Javanese ꦥꦿꦲꦸ (prahu). This may ...
Rook or rooks may refer to: Animals. Rook (bird) (Corvus frugilegus), a bird of the corvid family; Games. Rook (chess), a piece in chess that moves horizontally ...
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A fork of the king and queen, the highest material-gaining fork possible, is sometimes called a royal fork. A fork of the enemy king, queen, and one (or both) rooks is sometimes called a grand fork. A knight fork of the enemy king, queen, and possibly other pieces is sometimes called a family fork or family check. [3] [4]
The couple went on to welcome two more children together, sons Stephen in 1946 and Carey in 1949, before separating in January 1953 and divorcing in 1954, per the San Bernardino County Sun.
[15] [1] In a less exotic case, it explains why trading rooks in the presence of a queen-vs-3-minors imbalance favours the player with the queen, as the rooks hinder the movement of the queen more than of the minor pieces. Adding piece values is thus a first approximation, because piece cooperation must also be considered (e.g. opposite ...