[ECO code C33]
Keres Gambit (Variation)
White's King (best) moves to K2(e2). He forfeits all castling rights but is likely with careful play to build a strong centre as compensation.
White Black 1. P-K4 P-K4 2. P-KB4 PxP 3. Kt-QB3 Q-R5 ch 4. P-KKt3 PxP 5. K-K2
Example ends: Undo or Jump or Clear