Ponpon Knight
Ponpon Knight is a surprise Static Rook attack position used against a Ranging Rook opponent.
The ponpon in the name is an onomatopoeia sound effect of the Static Rook player's right knight jumping twice to start an early attack.
The position was originally used against a Fourth [File Rook] opponent. However, a more recent variation was developed to counter a Cheerful [Central Rook] opponent.
The strategy is not used by professional shogi players but can be found in amateur shogi.