What is "Rook Box" and its use? When I once watched a chess game on television, one player use a trick named "Rook Box" to draw a game. I didn't understand its move and so, I want to know what is "Rook Box" in chess.

I know it's a good trick for making a game draw.
Well, it is as simple as encasing a rook in a virtual box. We'll take the example and see it.

 [Date "????.??.??"]
 [Result "*"]
 [FEN "1k5r/1P3K2/8/2p2p2/7p/4P3/8/3R4 w - - 0 1"]

1.e4 fxe4 2.Kg7 Rh5 3.Kg6 Re5 4.Kf6 Re8 5.Kf7 Rh8 6.Kg7 


We see that the rook is trapped inside a 4x4 box. Losing the rook means losing the position, and the only way not to lose it is to stay inside the box, and be constantly pushed by the king. If White doesn't do so, he is in serious trouble.