Shogi Opening: Bishop Exchange Ranging Rook is an app that compiles the opening moves for the Bishop Exchange Ranging Rook strategy in shogi.

In this app, the main focus is on the opening moves for the Bishop Exchange Ranging Rook and the Direct Opposing Rook strategies. Traditionally, the Bishop Exchange strategy was considered disadvantageous for the Ranging Rook player, so it was common to stop the Bishop's path before moving the Rook. However, in recent years, it has been discovered that exchanging the Bishops actually allows the Ranging Rook player to launch aggressive attacks, and this strategy has been adopted by many professional shogi players.

The app references the following books for each move:

• "Comprehensive Guide to Bishop Exchange Ranging Rook" by Keita Monokura (4-dan)
• "Cutting Edge of Sozumezumi" by Tadao Kitajima (7-dan)
• "Comprehensive Guide to Direct Opposing Rook" by Naotsugu Oishi (6-dan)

This app can be used offline as well.