Chess Board
[ECO code C51]
EVANS GAMBIT
The Jaenisch Variation
Black's bishop moved to QKt5(b4) for a second time, losing a tempo but checking White's king.
White's King moves (best) to KB1(f1), and gains superiority with (usually) 8..Kt-B3, 9.Q-Kt3.
    White  Black	White  Black
 1. P-K4   P-K4      6.	P-Q4   PxP
 2. Kt-KB3 Kt-QB3    7.	PxP   B-Kt5! ch
 3. B-B4   B-B4	     8.	K-B1
 4. P-QKt4 BxP
 5. P-B3   B-B4
Example ends: Undo or Jump or Clear