Furthermore, Third File Rook positions can be categorized according to whether the bishop's diagonal is open or closed.
S-48), then White will likely aim for the Ishida structure by advancing the third file pawn and then moving the rook up to the fourth rank.
The elevated rook can then defend the fourth rank and prevent Black from making a pawn exchange on the second file.
The Isao Nakata XP (中田功XP) has gained attention as way of playing against Bear-in-the-hole Static Rook.
It was created by Nakata (also known as Kōyan), and then introduced and popularized in Akira Shima's famous book on Ranging Rook strategy.
The reason for not bringing the king into the Mino is to reduce the number of moves needed to build the castle and prepare for a fast attack and, most importantly, to keep the king away from the backlash that will occur as a result of the edge attack.
The most popular form is the Ishida formation in which the pushed pawn is defended directly by the rook.
The other form is a slow game variation in which the pushed pawn is instead defended by a developed left silver.
Instead of the more common Ishida formation, this variation uses the left silver to support the advanced pawn on the seventh file.
The Quick Ishida position can lead to a number of traps if the opponent does not defend properly.