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ANNOTATED GAME
IC DOGS Team 1 Mini Tournament
tonyr2506 (1483) vs. yellowlab (1785)
Annotated by: yellowlab
(2116)
Chess opening: Sicilian (B20), Gloria variation
tonyr2506 (1483) vs. yellowlab (1785)
Annotated by: yellowlab
(2116)
Chess opening: Sicilian (B20), Gloria variation
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11... axb5 12. b3 |
Now, the g7 bishop has the entire diagonal a1-h8 to itself. Notice that 12. ...Nxe4 13. Nxe4 Bxa1 14. Qxa1 is better for white. The two pieces are better than rook p. The bishop on g7 is far too valuable to give up in such an exchange. | ||||||
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12... b4 |
12. ...Ng4 was possible, but the text creates an isolated white pawn on a half-open file, which will become a defensive burden. | ||||||
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13. axb4 Nxb4 |
It is important in situations such as this to capture with a piece. 13. ...cxb5 would be a mistake. The text saddles white with a serious weakness in pawn structure. See how black's pawns are coordinated and solid. The white pawn on b3 by contrast is alone and blockaded. | ||||||
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14. Bd2 |
Guarding the knight on c3 and shifting the bishop's attention from d4 to b4, but black still wants to control both of those squares. | ||||||
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14... Nc6 |
This retreat uncovers an attack on the b-pawn. White's queen wants to do more important things than guard a pawn! | ||||||
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15. Ra3 |
Coming to the poor pawn's aid. | ||||||
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15... h6 |
Black wants to play Be6 without being harassed by a white knight moving to g5. | ||||||
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16. Nd5 |
It's hard to formulate a plan for white now, but this move leads to a loss of material. Notice how black first secured a spatial advantage, transformed that into an advantage in pawn structure and is now converting that into a material advantage. | ||||||
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16... Nxd5 17. exd5 Nb4 |
Now, it is the d5 pawn's turn to come under attack. | ||||||
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18. d4 |
At last! It's a good move, and the only try to save the position. | ||||||
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18... cxd4 |
I didn't like 18. ...Nxd5 19. Ba5 followed by 20. dxc5. | ||||||
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19. Bxb4 Rxb4 20. Bc4 |
White has saved the d5 pawn. and hopes to capture the d4 pawn in order to restore material balance. However, in order to do so, white has surrendered the two-bishops. The two bishops are generally superior to a bishop and knight. This is especially true in open positions with pawns on both sides of the board. | ||||||
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20... Qb6 |
Defending the d4 pawn. | ||||||
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21. Re1 |
The pawn on d5 is cramping black's game a little bit. White attacks the pawn on e7, which cannot advance without being lost. | ||||||
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21... Re8 |
Rook's don't want pawn guard duty any more than queen's do. Perhaps, 21. ...Bf6 was better. | ||||||
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22. Re4 |
An attempt to win the d4 pawn. It is now attacked three times and defended only twice. | ||||||
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22... Bf5 |
Black finally completes his development. It had not been clear where to position this bishop until this moment. White doesn't have time to capture the d4 pawn, unless he willing to sacrifice material. | ||||||
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23. Ra6 |
An interesting moment in the game. I have often seen this sort of mistake. Just as people often trade a rook and pawn for two minor pieces (usually a mistake) so they'll trade two rooks for a queen (usually a mistake). If the two rooks become coordinated, they can over power the queen. | ||||||
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23... Bxe4 |
Two rooks add up to 10 points, while the queen only counts for 9. | ||||||
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24. Rxb6 Bxf3 |
An important in-between move. 24. ...Rxb6 allows white to win a pawn with 25. Nxd4. | ||||||
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