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Tatiana Kosintseva vs Elena Yevgenyevna Zaiatz
10th European Individual Women's Championship (2009), St Petersburg RUS, rd 6, Mar-13
Spanish Game: Morphy Defense. Chigorin Defense Panov System (C99)  ·  1-0

ANALYSIS [x]

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sac: 39.Rg7+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
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May-11-09
Premium Chessgames Member
  agb2002: The point is that the pawn on b5 (and the pawn on d6 in some lines) cannot be defended and the subsequent endgame is hopeless because Black cannot prevent White's b pawn promotion without severe material losses.
May-11-09
Premium Chessgames Member
  agb2002: <jimx: I found 39. Rc8. I was not really sure how it would win but it was just a gut feeling to pin the bishop and force black to trade rooks or move it out of the way. Crafty thought that 39. Rc8 was better for white than 39. Rg7 after 3 moves in (+4.24 vs +3.03), but when I got Crafty to play white from move 39, he chose Rg7 like everyone else.>

This is interesting, I saw 39.Rc8 Rxc8 40.Qxc8 Qg5 41.Qe6+ Kh8 42.Qf7 Qc1+ (42... Qg8 43.Qxf6+ Bg7 44.Nxg7 Qxg7 45.Qxd6) 43.Kh2 Qf4+ 44.Ng3 Bh6 but probably there is something better than 41.Qe6+ and 42.Qf7.

May-11-09  Bautismo: I love monday puzzles.
May-11-09  SamAtoms1980: 39 Rg7+ for the wins.
May-11-09  zb2cr: It's simple to see 39. Rg7+.
May-11-09  DarthStapler: Got it
May-11-09  stacase: White's Knight is poised to fork Black's King and Queen, what's needed is a way to get rid of the defending Bishop. Hmmmm, looks like a Rook sacrifice at g7 should do the trick.
May-11-09  Stormbringer: <Skylark>: I thought it was a little trickier than your average sac-mate monday - but imo this is good, harder puzzles overall are a step forward in my opinion.

I think the thing is that the advantage you get (Queen for Rook + Knight) is smaller than the typical Monday. Mondays are normally pretty overwhelming.

I got it, it took a while, I was trying to lead with the royal fork and then decided to look for ways to deflect the bishop, but you have to do so with check otherwise you lose the queen, so Rg7 was really the only way.

I'm curious that people claimed to have seen the combo past the successful royal fork down as far as the pawn rustling... but then their vision strangely stops exactly where the game does. I didn't feel any need to predict the pawn rustling, guess that means I should actually chalk this up as a 'close but no cigar'.

May-11-09
Premium Chessgames Member
  johnlspouge: Monday (Very Easy):

T Kosintseva vs E Zaiatz, 2009 (39.?)

White to play and win.

Material: N for B. The Black Kg8 has 1 legal move. White has a battery Qc2 and Rc7. The White Nf5 can discover an attack by Qc2 on Qg6, which Ph7 protects. The Black Ra8 is loose. The White Kg1 is secured from all but Ra1+ and Qg2+.

Candidates (39.): Rg7+

39.Rg7+ Bxg7 [Qxg7 drops Qg6] [else, 40.Rxg6] 40.Ne7+ then 41.Nxg6

White has Q for R+B and should win after Qc2 penetrates on the c-file and gains a passed P.

To me, this was subtle fare for a Monday: I did not see Bf8 obviously overburdened with defense of both e7 and g7, and Nf5-e7+ looked harmless enough. Only the possibility of Ra1+ made me suspect the candidate had to be a check I missed.

May-11-09  benjinathan: I had Queen vs Rook and Bishop in a game with my son last night. He had a couple extra pawns. I had a passed d pwn like in the puzzle. I went down in flames. He alway kept his pieces protected, moved the queen around and then just pushed pawns. Of course here that d pawn is very dangerous.
May-11-09  TheChessGuy: Find the move, look and look... Nothing better than 39.Rg7+! White has a forced win in the Q vs. RB endgame, with an extra pawn, a monster passed d-pawn, a forced win of another pawn... Resignation is Black's best decision here.
May-11-09  MiCrooks: Agree that this a bit less clear than your normal Monday, and like others I spent a minute or so looking for something more dramatic that the prosaic Rxg7 winning the Q for the two minor pieces in a position where the Queen is much stronger.

The Queen-side pawns are indefensible. I am surprised that two Fide masters played it out as far as they did! White can choose either pawn to start with and goes for the d6 pawn probably because his pawn is one step closer to queening and since it is on a black square Black might be able to defend it later.

Qc6 works just as well as the b pawn drops too. I like the fact that the bpawn is further removed from the King. Either way it is an easily resignable position.

May-11-09
Premium Chessgames Member
  kevin86: Funny,I saw the two forks at move 39 and 40,but looked for something better. As it turns out,the text gains a passed pawn and queen for rook and knight and wins quickly.
May-11-09  MaczynskiPratten: A good lesson here on "it ain't the material, it's what you can do with it". At first I thought, Q for R&B, is that really enough? In some endgames the R&B hold easily (or even win, as with <benjinathan>). And in a Game of the Day last week White won Q for R&B, then got crunched in the counterattack (with a couple of other pieces still on the board).

But here, Black's B is restricted by its own pawns which are on the same colour squares, he has no accessible solid outpost for his R (d4 is the best candidate but it takes 3 moves to get there) and the b5 pawn cannot be protected. The B and R cannot get on to squares where they can coordinate or protect each other. If White did not have his b4 pawn, and Black could plant a B or R on c5, the position might be defensible. Instead it took me about a minute (like other people) to work out than in this position, Q v R&B is a trivial win.

May-11-09  doubledrooks: I found the solution of 39. Rg7+, but searched for awhile suspecting that there was something stronger I was missing. But I couldn't find anything better and went with 39. Rg7+.

The endgame seems to be won for white, because if black goes for 39. Rg7+ Qxg7 40. Nxg7 Kxg7 41. Qc6 Rc8 42. Qc7 Ra8 43. Qb7 Ra1+ 44. Kh2, the black b pawn falls and the bishop isn't well positioned to stop the advance of the white b pawn.

May-11-09  YouRang: Nice 'n easy. White threatens 2 ways to win a Q for a N+R: [1] Rg7+ and [2] Ne7+, and black's bishop is stopping *both* threats.

But when one piece is stopping two threats, it might smell like an overworked piece, and that's what we have here: One threat (39.Rg7+) springs the other (40.Ne7+).

May-11-09  mindmaster: I always forget that CG puzzles only require good moves..... This line did not take too much time but I thought finishing the game with a better move....Ended as usual.... Looking for a winnning move in vain....Any suggestions....
May-11-09  pankajdaga: good start to the week for me.
May-11-09  ruzon: I wasn't sure 39.♖xg7+ led to an acceptable advantage until I worked it through to capturing the d6 pawn. 5 moves is a bit involved for a Monday.
May-11-09  euripides: A good but not elementary puzzle, as White does need to assess the endgame and it is worth calculating a couple of lines (especially <agb>'s line B).

Strategically, this game is a good example of winning by exchanging the right minor pieces. The bad black bishop matters to the very end - if the bishop could cooperate with the rook to attack the b4 pawn Black might have hopes of building a fortress.

Tactically, perhaps Black was distracted by avoiding combinations on h7 e.g. 38...Qxd5 39.Nh6+ Nxh6 40.Qxh7+ Kf8 41.Qh8 mate. 38...Qh5 looks forced but after simply 39.Qd3 I guess Black would still be in difficulty: e.g. 39...Kh8 to stop the trick in the game allows 40.g4 Qg6 41.Qxb5: or Black could try the counterattack 39... Ra1+ 40.Kh2 Rd1 when White has the amusing 41.Qg3+ Kh8 42.Qg7+ Bxg7 43.Rc8+ with mate to follow.

May-11-09  WhiteRook48: what the?!
May-11-09  muralman: in a nonosecond.
May-11-09  zenpharaohs: This was really weird. Black was done in by 37 ... Qf7

White could have played 38 Rc8, but
opted for 38 Rc7 which simply postpones 38 Rc8; but in fact White didn't play it then either.

It's tough to say what White should do for move 38; since there are lots of moves that give White a won endgame, and that is the best White gets from 38 Rc8.

Jun-01-09
Premium Chessgames Member
  patzer2: For the Monday, May 11, 2009 puzzle solution, 39. Rg7+! forces a winning Knight Fork.
Dec-05-15  Everett: White takes control of the position starting at move 32. By orchestrating 36.Nf5, she has great piece placement and pressure.
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