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Natalija Pogonina vs Nina Dudareva
St Petersburg Rudenko mem (2006), rd 3, Aug-26
Spanish Game: Steinitz Defense (C62)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Sep-26-09  Oliveira: Go Pogonina! :)
Apr-26-16
Premium Chessgames Member
  Penguincw: A trickier than average Monday, and probably a trickier than average Tuesday, as I usually do get Tuesday puzzles, but not today.

I contemplated on a bunch of moves, including 34.Bxf7+ 34.Rxf7, 34.Qd8 and 34.f4.

Apr-26-16
Premium Chessgames Member
  Phony Benoni: Two thoughts spring to mind: 34.Rxf7 and 34.Bxf7+. The former doesn't look forcing at first glance, so let's try <34.Bxf7+ Rxf7 35.Qd8+>, and all Black's responses allow the White rook to check with a sneak attack on the queen.

If Black continues <35..Kg7 36.Rxf7+ Kh6>, then <37.Rxh7+ is insistent.

Apr-26-16  Steve.Patzer: I actually saw the correct moves but took some time calculating the final moves.
Apr-26-16
Premium Chessgames Member
  agb2002: White is one pawn ahead.

Black threatens 34... Qxe7.

The first idea that comes to mind tries to exploit the defenseless black queen with 34.Bxf7+ Rxf7 35.Qd8+ Rf8 (35... Kg7 36.Rxf7+ Kxf7 37.Qxg5 + - [Q+2P vs B]) 36.Rg7+ Kxg7 (36... Kh8 37.Qxf8#) 37.Qxg5 + - [Q+2P vs R+B].

Apr-26-16  dfcx: Two candidate moves for white,

Rxf7 and Bxf7.

34. Rxf7 Rxf7 and there is no good move for white to recover the lost rook

34.Bxf7 Rxf7 35.Qd8+ Rf8 36.Rg7+ reveals a sneaky discovered attack on the queen. White gets queen plus pawn for rook and bishop. will win the end game.

If black plays 35...Kg7?? 36.Rxf7+ gets both rook and queen.

Apr-26-16  not not: i would go for

34 Re5 (pinning bishop)
35 Rxa5 (two connected passers win)

Apr-26-16  AlicesKnight: 34.Bxf7 - Rxf7 (forced); 35 Qd8+. If ...Rf8 then 36 Rg7 wins the black Q; if ...Kg7 then 36.Rxf7 also wins the Q. Is there something faster?
Apr-26-16  dick50: Black declined two offers of Queen exchange, but finally had to give up Queen for Rook and Bishop
Apr-26-16  saturn2: 34 Bxf7 Rxf7 then my first thought was 35 Re8+? Rf8 36 Qh8+ KxQh8 37 RxR+ but this is no backrank mate since Black has Kg7. So I had to look for the alternative 35 Qd8+
Apr-26-16  mel gibson: I was looking for checkmate but there wasn't one.

It just a swap - Rook & Bishop for a Queen.

Apr-26-16  leRevenant: 2/2 ! roll on Wednesday.
Apr-26-16  morfishine: Figured this one out backwards: Once I saw White couldn't follow up Rxf7 with Qd8+ (since his rook has now unmasked <d8>), this meant the rook must not uncover <d8> at all, so 34.Bxf7+ is the move. Now after 34...Rxf7 35.Qd8+, and its White who has the last laugh snaring the Black Queen after 36.Rxf7+
Apr-26-16  CHESSTTCAMPS: The forcing 34.Bxf7+ wins decisive material: 34... Rxf7 35.Qd8+ Rf8 (Kg7 36.Rxf7+ Kh6 37.Qf8+ forces mate) 36.Rg7+ Kxg7 37.Qxg5 wins Q+P for R+B, with a straightforward advance of white's queen-side majority in view, assisted by the mobile queen.
Apr-26-16
Premium Chessgames Member
  thegoodanarchist: < Penguincw: A trickier than average Monday, and probably a trickier than average Tuesday, as I usually do get Tuesday puzzles, but not today.>

Yes, very tricky for a Tuesday.

Apr-26-16  geeker: Tougher than usual puzzles so far this week. With regard to the underlying game, I have to make the "Big Lebowski"-like comment that the Dude did not abide.
Apr-26-16
Premium Chessgames Member
  gawain: Got it! A nice discovered attack. The only problem was to convince myself that getting Q+P for R+B was decisive enough to count as the solution to a Tuesday puzzle.
Apr-26-16
Premium Chessgames Member
  kevin86: The battery is set up with the rook and queen. When the battery is sprung, black's queen will fall. White will be ahead a Queen and two pawns for rook and bishop...black didn't feel strong enough to play on.
Apr-26-16  starry2013: I saw the candidate moves and saw some of the others except the final move, but there's no checkmate and Tuesday is a checkmate. So you just lose a rook for queen it seems, after sacrificing a bishop for a pawn.
Apr-26-16  stst: Can only think of the more constructive line
34.Bxf7+ RxB
35.Qd8+ Rf8
36.Rg7+ KxR
37.QxQ etc

The other line
34.h4 Qh5 or h6
35.Qf6 Be6
does not yield any advantage follow-up for White....

see what's missing...

Apr-26-16  posoo: Punguinneous TODAY IS NOT tusday.
Apr-26-16
Premium Chessgames Member
  Penguincw: < posoo: Punguinneous TODAY IS NOT tusday. >

What? (was that post directed toward me)

Apr-26-16
Premium Chessgames Member
  Bubo bubo: I don't see anything better than 34.Bxf7+ Rxf7 35.Qd8+ Rf8 36.Rg7+ Kxg7 37.Qxg5, giving White a queen and two pawns against rook and bishop.
Apr-26-16  posoo: Yes Pungineka dat post was directed at you. YOU CONFUSED ME and I did not know wat day it was.
Apr-26-16  patzer2: Spent about ten minutes on today's Tuesday puzzle (?) and settled for 34. Re5 (+2.69 @ 19 depth, Deep Fritz 15).

My 34. Re5 is one of 10 moves Fritz lists as scoring two or more points for a winning White advantage.

However, by far the strongest move is Pogonina's 34. Bxf7+ (+5.81 @ 20 depth, Deep Fritz 15) which initiates a decisive discovered attack with check combination to win the unprotected Queen after 34...Rxf7 35.Qd8+ Rf8 36.Rg7+ Kxg7 37.Qxg5 .

I showed the puzzle position (34. ?) to my seven-year-old Grandson who has been studying discovered attack and discovered check combinations for the past week, and what I couldn't find in 10 minutes he found in about 10 seconds as he quickly visualized the entire discovered attack with check combination 34. Bxf7+ Rxf7 35.Qd8+ Rf8 36.Rg7+ Kxg7 37.Qxg5 .

In addition to today's Tuesday discovered attack with check combination, the game itself is instructive in providing a good plan of attack for White in dealing with 1. e4 e5 2. Nf3 Nc3 3. Bb5 d6 (diagram below)


click for larger view

in the Ruy Lopez.

For an early Black improvement, I'd ditch 3...d6 entirely in favor of 3...a6 or 3...Nf6. However, even though White easily maintained a slight advantage afterwards, 3...d6 isn't the only reason for Black's loss.

Maybe the computer suggestions 10...g6 11. Be3 Bc8 (0.44 @ 25 depth, Komodo 9.3) or 10...Bc8 11. f4 Nd7 = (0.28 @ 28 depth, Stockfish 6) are worth trying for an improvement to help salvage 3...d6 for Black in the Ruy Lopez

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