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Yochanan Afek vs Lev Psakhis
Israel (1990)
French Defense: Advance Variation. Main Line (C02)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Apr-05-18  ChessHigherCat: SF says (sounds like Mommy says...) 45. Rf2 draws in my line but after Qe2 not Qd2

1) =0.00 (31 ply) 46.Rc1 Qe2 47.Bf5 Qd1+ 48.Kg2 Rxf5 49.gxf5 Qg4+ 50.Kh1 Qd1+ 51.Kg2

Anyway, dat ain't it. I thought of Qxe5 but it didn't seem forcing enough. Shows what I know.

Apr-05-18  Geronimo: Beautiful puzzle! I found the first two moves but didn’t foresee the counterplay and the extent of black’s weak back rank. Such a harmonious position though, with all black’s pieces working perfectly together.
Apr-05-18  landshark: Saw the first move almost right away but was surprised by 45. Bg5(!). Was thinking about it when my screen went blank and when I touched the trackpad to re-light it, inadvertently gave away the next move, ... Qxe5, which I wasn't going to choose because it looked like 46. Bf5 Bxg1 47. Kxg1 g6 48. Be4 holds. 46. Re1 looks weaker to me... What's Black's best answer to 46. Bf5?
Apr-05-18  NBZ: Like others, I was going to go for Bc5 but did not see Bg5. In a game, I might have gotten lucky because I would pay Bc5, opponent finds Bg5, I go for a long think and eventually find Qxe5 Re1 Rf2. But in another position it would be catastrophic to miss Bg5.

The position after Bc5 is also a good "defensive" puzzle, as in White to play and make life hard for Black.

Apr-05-18  Cybe: Instead of 44. Rg1, Black should 44. Bg3!
Apr-05-18  yadasampati: <Cybe> Not Black but White :-)
Apr-05-18  AlicesKnight: Found the key ....Bc5; neat.
Apr-05-18  Cybe: <yadasampati> Yes, of course - thanks :-)
Apr-05-18
Premium Chessgames Member
  agb2002: Black has a pawn for a bishop.

White threatens B(Q)xc2.

The queen is overburdened with the protection of the bishop on e4 and the promotion square of the c-pawn. Therefore, 44... Bc5:

A) 45.Qxc5 Qxe4+ 46.Rg2 Rf1+ 47.Qg1 c1=Q wins.

B) 45.Bxc2 Bxg1

B.1) 46.Kxg1 Qf1#.

B.2) 46.Bg3 Qf1 47.Qg2 (47.h3(4) Qh3+ and mate next) 47... Bd4+ 48.Qxf1 Rxf1+ 49.Kg2 Rg1+ 50.Kf3 Bxe5 - + [r+p vs B].

B.3) 46.Qg2 Qc1 47.h3 (47.Qxg1 Rf1 wins; 47.Bg5 Be3+ and mate in two) 47... Bf2+ 48.Kh2 Qxc2 wins decisive material.

C) 45.Bg5 Qxe5

C.1) 46.Bc1 Bxg1 wins decisive material (47.Kxg1 Qd4+ 48.Kg2 Qf2+ 49.Kh3 Qf1+ and 50... Qxc1).

C.2) 46.Rc1 Qxg5 47.Rxc2 Rf1+ 48.Kg2 Rg1+ 49.Kf(h)3 Qxg4#.

Apr-05-18
Premium Chessgames Member
  agb2002: I forgot

D) 45.Bg3 c1=Q wins (46.Bxf4 Qxg1#).

Apr-05-18  malt: Come up with 44...Bc5 45.B:c2
(45.Q:c5 Q:e4+ 46.Rg2 Rf1+ 47.Qg1 c1/Q )

45...B:g1 46.Bg3 Qc1 47.Qg2
(47.Kg2 Qf1+ 48.Kh1 Bd4# )
47...Be3+ 48.Bd1 Q:d1+ 49.Be1 Q:e1+ and mate
Never considered 45.Bg5

Apr-05-18  lasker27: Neat combination, with control of f8 being the key. I saw 44...Bc5, but did consider the response, 45.Bg5, which made things interesting. Each move seemed to provide a new puzzle.
Apr-05-18  ventricule: <landshark> 46. Bf5 Bxg1 47. Kxg1 g6 48. Be4 Qxg5

and black is up the exchange and should win (but white can be super annoying with checks)

Apr-05-18  Pchief: 36.Qc6 made things bad by letting the Black Q in
Apr-05-18
Premium Chessgames Member
  Jimfromprovidence: 46 Bc1 does not help either.


click for larger view

Black has 46...Qd4, below, seeing 47 Re1 Qf2.


click for larger view

Apr-05-18
Premium Chessgames Member
  thegoodanarchist: I got the first move. That's really what I wanted to achieve.
Apr-05-18  JJF: Help! I don't see the point of 49......Rd2?
Doesn't 50. Rf1 save the day for white?
What am I missing?
Apr-05-18  JJF: OH! Never mind, I now I see black's pawn on C2. Sorry, I missed it.
Apr-05-18  sombreronegro: Saw that sweet interference for the bishop in the overburden white queen threatening to queen the pawn + nice attack on the rook. On the third move I probably would have snapped up the bishop though. nice mate threat to swap the bishop and the rook to guard the back rank.
Apr-05-18  Cheapo by the Dozen: I thought this was Tuesday-easy, but I overlooked the 45 Bg5 defense.

That said, 45 ... Qf2 makes a lot more sense to me than the game line.

Confusingly, the engine here claims 46 Re1 then draws, when in fact it allows mate in 3 starting with the obvious 46 ... Qxd1+

Apr-05-18  PJs Studio: I overlooked whites Bg5 defense so, how far can one go after Bc5! (?)

GM Psakhis, great player.

Apr-05-18  morfishine: <JJF> No need to apologize about missing something, it happens all the time around here
Apr-05-18
Premium Chessgames Member
  gawain: Nice combination. I had no ideas that looked promising at all.
Apr-05-18  Mendrys: One of those interesting puzzles where it may be possible that the text move, 44...Bc5, would likely have been played during the course of a game, it does seem sensible as 45. Qxc5 Qxe4+ is an easy to see disaster for white. But...knowing that this was a puzzle I overlooked it as being too quiet!

If I had just looked a little more I might have found it but to be sure finding the solution to the complications that white had at his disposal is something that I wouldn't have solved without playing through the game.

Apr-05-18
Premium Chessgames Member
  al wazir: Well, I got the first move. But otherwise I was without a clue.
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