White and Black both castle on the king's side,
placing their kings in safer positions and starting the development
of their rooks. They have a fairly equal chance in the remaining game.
White Black White Black
1. P-Q4 P-Q4 6. Kt-B3 B-Kt2
2. P-K3 Kt-KB3 7. 0-0 0-0
3. B-Q3 P-B4
4. P-QB3 QKt-Q2 nb: 0-0 =K-side
5. P-KB4 P-KKt3 0-0-0 =Q-side