White pushes his threatened King's Pawn
forward to a defended K5(e5) and deters ..Kt-KB3. Black develops his Queen's Knight to
QB3(c6) keeping up pressure against White's KP.
White Black
1. P-K4 P-QB4
2. Kt-KB3 P-Q3
3. P-QKt4 PxP
4. P-Q4 P-Q4
5. P-K5 Kt-QB3