undeveloped, and that he plays practically several pieces down,
White sacrifices his Knight for two pawns: he foresees the
position which occurs a few moves later, when Black is hemmed in
on all sides.

10. KtxP PxKt
11. BxKtPch QKt-Q2
12. Castles QR R-Q1

This is the only piece available to cover Q2, for the King's
Knight is pinned. White has another piece in reserve, his King's
Rook, and against this Black is defenceless.


---------------------------------------
8 | | | | #R | #K | #B | |#R |
|---------------------------------------|
7 | #P | | | #Kt| #Q | #P | #P | #P |
|---------------------------------------|
6 | | | | | | #Kt| | |
|---------------------------------------|
5 | | ^B | | | #P | | ^B | |
|---------------------------------------|
4 | | | | | ^P | | | |
|---------------------------------------|
3 | | ^Q | | | | | | |
|---------------------------------------|
2 | ^P | ^P | ^P | | | ^P | ^P | ^P |
|---------------------------------------|
1 | | | ^K | ^R | | | | ^R |