Chess Board
[ECO code C23]
BISHOP'S OPENING - Classical Var.
McDonnell Double Gambit
White castles, freeing his queen and bringing his King's Rook towards the half-open king's (e-)file.
Black also castles to bring his King's Rook into the game, with equality.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	Kt-K2  Kt-KB3
 2. B-B4   B-B4	     7.	0-0    0-0
 3. P-QKt4 BxP
 4. P-B4   P-Q4
 5. KPxP   P-K5
Example ends: Undo or Jump or Clear