Black's KPawn to K3(e6) supported his light bishop,
tripled his QP support and freed his king's bishop. White develops his Queen's Bishop to
K3(e3) tripling his own QP support.
White Black
1. P-K4 P-QB3
2. P-Q4 P-Q4
3. P-K5 B-B4
4. P-QB3 P-K3
5. B-K3