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Alireza Firouzja vs Matthias Bluebaum
Aeroflot Open (2017), Moscow RUS, rd 7, Feb-27
Caro-Kann Defense: Advance. Short Variation (B12)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Mar-01-17
Premium Chessgames Member
  keypusher: Position after 38....f5, the final combination from a game full of them:


click for larger view

But the whole game is worth your time. I leave it to stronger players to say whether all the sacrifices are sound.

Jul-24-17  siggemannen: Not a bad game from the youngster.
Nov-19-17
Premium Chessgames Member
  GrahamClayton: 39. gxf5! - liquidating to a position where the two connected passed pawns on the 6th rank are stronger than the rook.
Dec-30-18  Saniyat24: Alireza's Blue Mathematics...!
Aug-31-19  Whitehat1963: Great Fridayish puzzle after 27...Qf3. What an amazing game! Chock full of combinations!
Aug-31-19  Whitehat1963: I say again, this is truly an excellent game. The fun begins after 14...Qg6.
Nov-07-19  Walter Glattke: 29.Qd7+ Ka6 30.Rd3?? Re1+ 31.Kh2 Rh1# 30.Be3?? Rxe3 31.fxe3 Rxg3+ 32.Kh2 Qg2# 29.Qd7+ Ka6 30.Rc1 Rc8 31.Be3 /29.Qd7+ Ka8! 30.Rc1 Qd5 31.Qc7 Rc8 32.Qa5 unclear
Nov-07-19
Premium Chessgames Member
  patzer2: Missed the clever discovered attack with check combination 28. Qf5+! Kb7 29. Rd7+ Ka8 30. Rxa7+ Kxa7 31. Bb8+ +- (+4.30 @ 37 ply, Stockfish 10) solving today's Thursday puzzle.

After just completing a long walk this evening, I was tired and blundered with 28. Rd3?? allowing 28...Re1+ 29. Kh2 Rh1#.

P.S.: Black's losing move was 27...Qf3?, allowing 28. Qf5+! +- (+4.30 @ 37 ply, Stockfish 10).

Instead, 27...Qe4 = (0.00 @ 36 ply, Stockfish 10) would've held the position fully level.

Nov-07-19
Premium Chessgames Member
  malt: Seen 28.Qf5+ Kb7 29.Rd7+ Ka6
(29...Kb6 30.Bc7+ )

30.R:a7+ K:a7 31.Bb8+

27...Qe4 was better.

Nov-07-19  Lambda: Saw up to Qxf3 and then stopped, wasn't convinced it was a win but it does gain material, so would have played it for want of any better ideas.
Nov-07-19  clement41: Just not 31 Be3+?? Rxe3 -+ oopps
Nov-07-19  goodevans: <keypusher: [...] the whole game is worth your time. I leave it to stronger players to say whether all the sacrifices are sound.>

I agree entirely. I spent a while trying to work out who had the upper hand after 17...Qg4


click for larger view

... but it was beyond me.

Would be worthy of GOTD.

Nov-07-19  mel gibson: I saw the first move but I thought
there was an immediate mate somewhere
and that was wrong.

Stockfish 10 says:

28. Qf5+

(28. Qf5+ (♕c2-f5+ ♔c8-b7 ♖d1-d7+ ♔b7-a6
♖d7xa7+ ♔a6xa7 ♗f4-b8+ ♖e8xb8 ♕f5xf3 ♔a7-b6 ♕f3xh5 ♖g8-h8 ♕h5-f3 ♖h8-f8 ♕f3-f5 b5-b4 h4-h5 c6-c5 ♕f5-e6+ ♔b6-c7 ♔g1-g2 ♖b8-e8 ♕e6-c4 ♔c7-b6 h5-h6 f6-f5 ♕c4-d5 ♖e8-c8 ♕d5-d6+ ♔b6-b5 ♕d6-d7+ ♔b5-b6 b2-b3 ♖f8-h8 ♕d7-g7 ♖h8-f8 ♔g2-f3 ♖c8-e8 ♕g7-d7 ♖e8-d8 ♕d7-e6+ ♔b6-b5 ♔f3-g2 ♖d8-c8 ♕e6-d7+ ♔b5-b6 h6-h7 ♖c8-d8 ♕d7-e6+ ♔b6-b5 ♕e6-e7 ♔b5-c6 ♔g2-f3) +5.33/38 226)

score for White +5.33 depth 38

Nov-07-19  saturn2: Black threatens Qxf4 and Re2

I saw it till move 32.Qxf3 but Q vs two R seemed a tie to me.

Nov-07-19
Premium Chessgames Member
  OhioChessFan: First move was obvious, as well as Black desperately trying to keep his King off dark squares.
Nov-07-19  AlicesKnight: I saw the opening sequence leading to Q for 2 Rs but was unsure how definite the win was from there; the return of the Q for 2 passed Ps on the 6th was eyecatching.
Nov-07-19
Premium Chessgames Member
  agb2002: White has a bishop for a rook.

Black threatens Qxf4 and Re2.

The black queen is defenseless. Therefore, 28.Qf5+ Kb7 29.Rd7+:

A) 29... Ka6 30.Rxa7+ Kxa7 (30... Kb6 31.Bc7+ Kxa7 32.Qxf3 + - [Q+B+P vs 2r]) 31.Bb8+ K(R)xb8 32.Qxf3 followed by Qxc6, Qxf6 or Qh5.

B) 29... Ka8 30.Rxa7+ transposes to A.

C) 29... Kb6 30.Bc7+ wins.

Nov-07-19  drollere: the exclamation point on the combination is 33. Q:h5, which cements the advantage of Q vs. 2 Rs and foresees the linked 2 p's that the solitary R cannot stop.
Nov-07-19  Cheapo by the Dozen: Easy parts to see:

-- White's a little behind in material.
-- Anything White does probably needs to happen at a brisk tempo, as Black has various potential threats of his own. -- The first move is Qf5+, and the second is a check at d7. (This is easy to see because none of the alternatives are at all promising.)

From there it's a matter of seeing:
-- White has strong attacking lines but no prospects of quick forced mate. -- There's a potential discovered attack on the queen. -- Be3+ is the wrong way to do the discovery. :)

It doesn't matter exactly how good the resulting endgame turns out to be; this is obviously the best approach for White to try.

Nov-07-19
Premium Chessgames Member
  laskereshevsky: 28.♕f5+ ♔b7 29.♖d7+ is an easy sight..

after a while i found ♔a6 (or a8) 30. ♖xa7+ ♔xa7 31.♗b8+ ♔xb8 32.♕xf3

and the weak pawns on c6 f6 h5 should should give a better play for white

Nov-07-19  landshark: I rejected the game continuation because a Q vs 2 R's is rarely a win, much less a convincing one.
Nov-08-19
Premium Chessgames Member
  OhioChessFan: <landshark> a Queen typically dominates 2 Rooks with loose Pawns on the board. After 28. Qf5+, the two loose Black Pawns on the Kingside are not long for this world. I bet both sides knew it at that point.


click for larger view

After 39. gf5, it's mission accomplished.


click for larger view

So, with Pawns on the board, a Queen is much stronger than 2 Rooks.

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