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ANNOTATED GAME
Small advantages wins games.
friction009 (1420) vs. anotherminorpawn (1629)
Annotated by: gleeful
(1968)
Chess opening: Sicilian (B20), Gloria variation
friction009 (1420) vs. anotherminorpawn (1629)
Annotated by: gleeful
(1968)
Chess opening: Sicilian (B20), Gloria variation
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18... Bf6 |
Taking the long diagonal and threatening white's rook. This prevents the possibility of a3 and Ra2. | ||||||
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19. Rb1 Qd6 |
Preparing for Rd8, which would triple pieces on the d file, further pressuring the d pawn. | ||||||
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20. Bb2 |
Giving up the d pawn. | ||||||
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20... Rxd2 |
Not 20...Bxb2? 21. Rxb2 Rd8 22. Rd1, which would protect the d pawn (after Nf6-e4, white could add more pressure to the d pawn, however white could play 23. Nf4 forcing Rd4 and play for a draw with 24. Ne2). | ||||||
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21. Qc1 Bxb2 |
Eliminating the potentially dangerous bishop. | ||||||
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22. Rxb2 Rd8 23. Rxd2 Qxd2 24. Qxd2 Rxd2 |
The exchange leaves black with a rook on the 2nd rank, where it will dominate the rest of the game. The power of a rook on the 2nd rank is two fold: it confines the king to the back rank and forces the opponent to defend pawns with pieces. | ||||||
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25. Ra1 |
Attempting to defend the a pawn. Unfortunately, white has few alternatives. Ng5 (or Ng4) followed by h3 would have driven the black knight off, but would have surrendered the queenside pawns in the process. Ng5 followed by Nf3 would have forced black to either give up the d file or the 2nd rank. If black could have seized the d file, it may have been worth the a and b pawns. | ||||||
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25... h6 |
Preventing Ng5. | ||||||
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26. Kg2 |
Better is Nf4, centralizing the knight. This pins the f pawn, though to be fair, white is in danger of losing either the f or a pawn no matter what he does. | ||||||
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26... g5 |
Preventing Nf4. If 27. Kf3 then f5 traps the king and forces a further loss of time. | ||||||
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27. Kf1 |
Abandons the h pawn, hoping to attack the rook. | ||||||
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27... Nxh2+ 28. Ke1 Nf3+ 29. Kf1 e5 30. Ng1 Nd4 31. Re1 |
Offering to trade the a pawn for black's e pawn. | ||||||
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31... f6 |
Trading pawns would allow white some counterplay along the open e file, so black refuses. | ||||||
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32. Ne2 Rxa2 |
Since the d file is now closed, black feels safe enough to pick up the unprotected a pawn. | ||||||
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33. Nxd4 cxd4 |
The exchange gives black a passed pawn. | ||||||
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34. Rb1 Kf7 |
Finally mobilizing the king. As more pieces leave the board, the king becomes more and more powerful. He'll need to escort the pawns forward and eventually help give mate. | ||||||
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35. b4 Rc2 |
Trading queenside pawns to prevent surprises from that side of the board. | ||||||
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36. c5 bxc5 37. bxc5 Rxc5 38. Rb7+ Kg6 |
Because black had already moved off of the back rank, he wasn't trapped like white's king. | ||||||
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39. Rxa7 Rc2 |
Reestablishing 2nd rank dominance. | ||||||
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40. Kg2 g4 |
Prevents white from escaping. | ||||||
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