[ECO code C31]
"Queen" Var. - (The) Side Variation
Black develops his King's Bishop to QB4(c5) but the check is useless: after 7.P-Q4..B-Kt3 [7..B-K2!], 8.B-Kt5+ch..P-QB3, 8.R-K1 wins Q for R+B. B-Alt.
White Black White Black 1. P-K4 P-K4 6. K-B2 B-B4?? ch 2. P-KB4 P-Q4 3. KPxP QxP 4. Kt-QB3 Q-K3 5. Kt-B3 PxP ch
Example ends: Undo or Jump or Clear