Side Pawn Capture, Pawn*23
Side Pawn Capture Pawn*23 or Side Pawn Capture B*25 is variation stemming from the Side Pawn Capture opening, in which White drops a pawn on the second file before trading off pawns on the eighth file leading Black to capture White's Side Pawn. After this, White initiates a rapid attack against Black's rook starting from a bishop drop on the second file.
This is an older variation of the Side Pawn opening that has become disfavored since White's rapid attack is considered ineffective.
Development
6...P*23. White drops their pawn in hand on the 23 square attacking Black's rook – a striking pawn tactic.7. Rx34. Fleeing from attack, Black can now take White's side pawn.