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18... Rh8
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Black thinks more about defense than about furthering his own counterattack.
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19. h5 Qe7
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Black connects his rooks, useful when the h-line would be opened. Also the queen could join in the attack on the white king with Qa3+
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20. h6+
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White keeps the h-file closed and gets control over a weak square near the black king who is forced to lock his own rook up.
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20... Kf8 21. Nd6
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Blocks the access of the black queen to a3. White contemplated 21. Nc5 since then the white knight could not so easily be challenged by the black one, but decided that the d6 square was juicier as it is closer to the black king.
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21... Nc8
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Black is trying to reduce the pressure.
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22. Qf4
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The white pieces are concentrating on the black king.
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22... Be8
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Puts an extra defender on the weakness f7 but removes one from e6. Black should probably immediately have exchanged the knights instead of postponing this until his next move.
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23. Rh3
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A rooklift to train more forces on the black king.
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23... Nxd6
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A fatal mistake. 23... f7-f5 was possible since white can not take en-passant: Nd6 is attacked twice. White's attack would have been slowed down, needing g2-g4. Now however e6 gets uncovered and becomes a new target. As a result black's position collapses quickly.
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24. exd6 Qd7 25. Re1
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The rook takes aim at e6 and there is nothing black can do about it - his pieces lack mobility.
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25... Rd8 26. Rxe6 a5
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This leads to checkmate in three but the alternatives were not pleasant either. Only giving up a lot of material postpones immediate loss. It is also too late for f7-f5 as white can play around the obstacle: 26... f5 27. Qe5 Rg8 28. Rxe8+ Rxe8 29. Qf6+ Qf7 30. Qxf7#
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27. Qf6 Rg8 28. Rf3
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White misses a pretty mate in two with 28. Qe7+ Qxe7 29. dxe7#
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28... a4 29. Re7
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Again misses the pretty conclusion 29. Qe7+ and 30. dxe7#
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29... axb3 30. Qxf7+
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This time the queen sacrifice was easy to see, checkmate next move 30. Bxf7 31. Rxf7#. Notice the unusual grouping of pieces around the black king after 31. Rxf7#: All pieces except the white king have gathered around him. |
1 comment
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