interchanging the positions of the king and a rook
a large building formerly occupied by a ruler and fortified against attack
(chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard
a large and stately mansion
move the king two squares toward a rook and in the same move the rook to the square next past the king
KNOT
any of various fastenings formed by looping and tying a rope (or cord) upon itself or to another rope or to another object
soft lump or unevenness in a yarn; either an imperfection or created by design
a tight cluster of people or things; "a small knot of women listened to his sermon"; "the bird had a knot of feathers forming a crest"
a unit of length used in navigation; exactly 1,852 meters; historically based on the distance spanned by one minute of arc in latitude
tie or fasten into a knot; "knot the shoelaces"
something twisted and tight and swollen; "their muscles stood out in knots"; "the old man's fists were two great gnarls"; "his stomach was in knots"
tangle or complicate; "a ravelled story"
a hard cross-grained round piece of wood in a board where a branch emerged; "the saw buckled when it hit a knot"
make into knots; make knots out of; "She knotted her fingers"
a sandpiper that breeds i
TIE
neckwear consisting of a long narrow piece of material worn (mostly by men) under a collar and tied in knot at the front; "he stood in front of the mirror tightening his necktie"; "he wore a vest and tie"
a cord (or string or ribbon or wire etc.) with which something is tied; "he needed a tie for the packages"
a horizontal beam used to prevent two other structural members from spreading apart or separating; "he nailed the rafters together with a tie beam"
one of the cross braces that support the rails on a railway track; "the British call a railroad tie a sleeper"
(music) a slur over two notes of the same pitch; indicates that the note is to be sustained for their combined time value
the finish of a contest in which the score is tied and the winner is undecided; "the game ended in a draw"; "their record was 3 wins, 6 losses and a tie"