It means attacking, cornering, immobilizing, harassing, harassing, forcing to remove or move. Put in check. In the game of chess, force the king to move from his position by leaving the danger with a token of the opponent.
1º_ In the game of chess it is "to attack the king of the opponent with some piece of his own". It comes from the checker voice. See checkmate. 2º_ For the previous one, "corral, avoid suddenly a foreign movement, who is usually considered an opponent". 3º_ Castilian version of the Spanish hack ( pr . jakear ) . It is almost not used. 4º_ In lunfardo it is a very little used word, and it is a misinterpretation of the Castilianized Turkish jartear ("to deceive"), surely influenced by some of the previous meanings.