Knight (chess) of chaturanga in India around the 6th century. Similar pieces are found in almost all games of the chess family. The "ma" of xiangqi and janggi are slightly more restricted; conceptually, the piece is considered to pass through the adjacent orthogonal square, which must be unoccupied, rather than "jumping". Another related piece is the "keima" of shogi, which moves like a knight but may only move two squares forward followed by one square sideways, restricting its movement to two possible squares. Unicode defines two codepoints for knight: ♘ U+2658 White Chess Knight (HTML ♘) ♞ U+265E Black Chess Knight (HTML
Fairy chess piece opponent's pieces). With multiple royal pieces the game can be won by capturing one of them (absolute royalty), or capturing all of them (extinction royalty). The rules can also impose a limit to the number of royals that are allowed to be left in check. In Spartan chess black has two kings, and they both cannot be left in check even though they both cannot be captured in one turn. The following table shows some game pieces of unorthodox chess, from fairy chess problems and chess variants (including historical and regional ones), and the six orthodox chess pieces. The columns