The White Bishop cannot move, because of Kt to B 7: ch., and if 11. Castles, Black would win the exchange with 11. ... Kt takes B; 12. Q takes Kt, B to Kt 4.
| ... | 11. | Kt takes B: ch. | |
| 12. | Q takes Kt | 12. | B to Kt 5: ch. |
| 13. | K to B 2 (or Q Kt to Q 2) | ... |
With a very good game for Black.
Second Variation.
| WHITE. | BLACK. | ||
| 1. | P to K 4 | 1. | P to K 3 |
| 2. | P to Q 4 | 2. | P to Q 4 |
| 3. | Kt to Q B 3 | 3. | Kt to K B 3 |
| 4. | P to K 5 |
P to K 5 on White's third move having been found unsatisfactory, the modified form here given is now fashionable.
| ... | 4. | K Kt to Q 2 | |
| 5. | P to B 4 | 5. | P to Q B 4 |
Again the attempt to break the centre.
| 6. | P takes P | 6. | Kt to Q B 3 |
As the pawn cannot be defended, Black utilises his time by bringing an additional piece into play.