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Enrico Danieli vs Aleksandar Colovic
Padua op (1999), Padua ITA, rd 1, Dec-11
Indian Game: Yusupov-Rubinstein System (A46)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Aug-09-08
Premium Chessgames Member
  bright1: White could have won with 25. Ba3 instead of Qe4. For example:

25. Ba3 Qxa3, 26. Qh5 Kg8, 27. Qf7+ Kh8, 28. Rxd8+ Rxd8, 29. Rxd8+ Bxd8, 30. Qe8+ Qf8, 31. Qxf8#

May-06-21
Premium Chessgames Member
  Messiah: Terrible!
May-06-21  TheaN: Not a lot yet for this Thursday (did it change?)!

I missed it. I saw the option of 25.Rxe7? and after either 25....Kxe7? immediately 26.Qxg7+ Ke8 27.Qf7#, or 25....Rxd1+ 26.Qxd1 Kxe7? 27.Qd7+ Kf8 28.Qf7#, however, on both occasions Black has Qxe7.

<25.Ba3 +-> flashed my mind to somehow lure the queen away, but after 25....Qxa3 this doesn't help, if it wasn't for the diversion of play 26.Qh5! +-.

I settled on 25.Rc1, which <seems> pretty good, but falls short on 25....Qb4 ⩲, as it's now White who's dealing with tempo issues due to Qxg4.

May-06-21  TheaN: Oh, yeah, seems like the puzzle did change, the original one being R Pruijssers vs Cuenca Jimenez, 2014 that now got spoiled for me as I clicked it as first guess under 'Hot Games'
May-06-21
Premium Chessgames Member
  devere: 25.Ba3!! Qxa3 26.Qh5 wins. Very pretty.
May-06-21
Premium Chessgames Member
  drollere: as black has no immediate threat other than a R exchange and no check square available to Q or R, i went with Qa4 with the double threat Rxe7, Qxe7 Ba3 and Qxa7 ramming the R on e7. f7 looked so pretty but i just missed the deflection to get there (that is, Qa4 is superfluous).
May-06-21
Premium Chessgames Member
  Jimfromprovidence: I saw the the threat Qh5 seeing Qf7# but how to force it?

I looked at 25 Ba3 but thought initially thought that 25..Qb5, below, would hold.


click for larger view

Took a little while to see that the black bishop is pinned and the queen being on the a4-e8 diagonal did not matter.

Black has no answer to 26 Rxd8+.

May-06-21  King.Arthur.Brazil: I didn't find the game continuation. Like everyone, I wondered that if Black ♕ leaves c5, like 25. ♗a3 ♕xa3 26. ♕h5 ♔g8 27. ♕f7+ ♔h8 28. ♖xe7 ♖xd1+ 29. ♔h2 ♕d6+ 30. g3 ♖g8 31. ♖e8 ♕d8 32. ♕xg8#. Therefore, I supposed that the game has continued like 25. ♗a3 ♕e5 26. ♗xe7+ ♔e8 27. ♖xd8+ ♖xd8 28. ♗xd8 and white wins. PS. As I lost time to kibitz, that seemed same of Jim... lgs
May-06-21  King.Arthur.Brazil: Sure <JIM>... 26.Rxd8+ and mate next. Good!
May-06-21  mel gibson: So we get a 2nd game today?
A double Thursday.

Stockfish 13 says a different
move from the text.

25. Ba3

(25.Ba3 (♗b2-a3 ♖d8-e8 ♗a3xc5 b6xc5 ♕g4-h5 ♔f8-g8 ♕h5-f7+ ♔g8-h8 ♖d7xe7 ♖e8-g8 ♖d1-d7 ♖c8-f8 ♕f7-h5 ♖f8-b8 ♕h5-g4 ♖b8-b1+ ♔g1-h2 a7-a5 ♖e7xg7 ♖b1-h1+ ♔h2xh1 ♖g8xg7 ♕g4xg7+) +M12/71 66)

mate in 12.

May-06-21  RandomVisitor: 13...Ne4 likely leads to a small black advantage.

21...Qc2 22.R5d2 Qg6 is even.

May-06-21  Walter Glattke: 0:30 CET, just discovered the 2nd puzzle.
Trying option 25.R1d5 Qc2 26.Bxf6 Bxf6 27.Qb4+ Ke8 28.Qb5 Maybe correct, it's late, good night
May-06-21  asiduodiego: The key in the position is black's weaknesses in the light squares. The first thought I had was: "I want to remove the Queen from the 5th rank". It seemed impossible at first, so I tried to think if wrecking the pawn structure with 25 Bxf6 lead to something, but it didn't. Then I noticed 25 Ba3!. To refuse the sacrifice is impossible, because moving the queen leads to losing the Bishop with check and a very easy checkmate (or devastating material loss) should follow. But, alas, after 25 ... Qxa3 26 Qh5! infiltrates the light squares with decisive results. The checkmate threat must be addressed, and there is no good way to block the access to the Queen. 26 ... g6 27 Qxh7 and mate is unavoidable. 26... Kg8 seems indicated, but then 27 Qf7+ Kh8 28 Rxd8+ clears the back rank. Whenever the bishop captures captures in d8, and Qe8+ seals the victory. Of course, mate can be delayed playing Bf8, but that leads to catastrophic material loss, and mate should follow soon anyway.
May-06-21  RandomVisitor: 25.Qe4 is not a bad move, there just is another move that is better:


click for larger view

Stockfish_21042813_x64_modern:

<49/26 1:22:36 +M13 25.Ba3> g6 26.Bxc5 bxc5 27.Qf4 Rxd7 28.Rxd7 Re8 29.Qc7 f5 30.h5 gxh5 31.Rxe7 Rxe7 32.Qd8+ Re8 33.Qf6+ Kg8 34.Qf7+ Kh8 35.Qxe8+ Kg7

<48/76 1:22:36 +9.68 25.Qe4> Qh5 26.g4 Qg6 27.Ba3 Re8 28.Bxe7+ Rxe7 29.Qb4 Qe8 30.Rxa7 Rc5 31.Rxe7 Kxe7 32.Qxb6 Qc6 33.Qa7+ Kxe6 34.Qxg7 Rc4 35.Re1+ Kd5

48/94 1:22:36 +6.40 25.Bd4 Qc2 26.Rxe7 Kxe7 27.Qxg7+ Kd6 28.Ra1 Kxe6 29.Re1+ Kd6 30.Qxa7 Re8 31.Qxb6+ Qc6 32.Bc5+ Kd5 33.Qb3+ Kxc5 34.Rc1+ Kd6 35.Rxc6+ Kxc6

May-06-21
Premium Chessgames Member
  drollere: <asiduodiego> great post. hope to see more.

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