[ECO code B15]
Gurgenidze System
Black advances his King's Rook's Pawn to KR4(h5) on his fourth rank. Usually continues 6.B-Q3..Kt-QR3, 7.Kt-B3..B-Kt5, 8.P-KR3..BxKt.
White Black 1. P-K4 P-QB3 2. P-Q4 P-Q4 3. Kt-QB3 P-KKt3 4. P-K5 B-Kt2 5. P-B4 P-KR4
Example ends: Undo or Jump or Clear