四間飛車
White's Fourth File Rook (non-Fujii System Types) 【Takodori's Book Lines】
15 - ShogiExplained -- 1: Rapid attack - Sente's left Silver with S-4f
- 2: Rapid attack - Early engagement(Hayajikake) with P-4e
- 3: Rapid attack - Bogin(climbing Silver)
- 4: Rapid attack - Yamada's Joseki with B-9g
- takodori
- ShogiExplained