White develops his Queen's Bishop to
capture Black's pawn on KKt5(g5), and has good compensation
(ie. easier development and attacking chances) for the lost piece.
White Black White Black
1. Kt-KB3 P-KB4 6. Kt-Kt5 Q-QB3
2. P-K4!? PxP 7. PxP PxKt
3. Kt-Kt5 P-Q4 8. PxP Q-Q2
4. P-Q3 Q-Q3 9. BxP
5. Kt-QB3 P-KR3