Climbing Silver (棒銀 bōgin, literally "pole-silver") is a shogi strategy.
Climbing Silver involves advancing a silver upward along with an advanced or dropped pawn supported by the rook aiming to break through the opponent's camp on their bishop's side.
[1] Many different Static Rook shogi openings include a Climbing Silver component.
For instance, Climbing Silver can be played as part of Double Wing Attack, Fortress, or Bishop Exchange openings.
In the adjacent diagrams, the Black's silver advances to rank 5. ii.
Similarly, it's also possible to play Climbing Silver when Black has no pawn on the second file.
In the board diagram to the right, the Black's silver has successfully climbed to rank 5 on the first file (15).