Fourth File Rook

Fourth File Rook

☖ pieces in hand: –

9	8	7	6	5	4	3	2	1
									1
									2
									3
									4
									5
		歩	歩						6
歩	歩			歩	歩	歩	歩	歩	7
	角		飛						8
香	桂	銀	金	玉	金	銀	桂	香	9

☗ pieces in hand: –

Fourth File Rook
with Mino Castle

☖ pieces in hand: –

9	8	7	6	5	4	3	2	1
									1
									2
									3
									4
									5
		歩	歩					歩	6
歩	歩			歩	歩	歩	歩		7
	角		飛	金		銀	玉		8
香	桂	銀			金		桂	香	9

☗ pieces in hand: –

In shogi, Fourth File Rook (四間飛車 shikenbisha) is a class of Ranging Rook openings in which the rook is initially positioned on the fourth file if played by White or the sixth file if played by Black.