Yochanan Afek vs Lev Psakhis (1990)

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Yochanan Afek vs Lev Psakhis
Israel (1990), Israel 50/295
French Defense: Advance Variation. Main Line (C02) · 0-1

ANALYSIS [x]

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< Earlier Kibitzing · PAGE 1 OF 2 · Later Kibitzing>
Apr-05-18		Marmot PFL: 44...Bc5 surely looks like it should win, but proving that seems difficult and I didn't examine all the variations. The threat is c1(Q), if Qxc5 Qxe4+. In the end the passed pawn plus the mate threats on h2 are decisive.

Apr-05-18		FSR: <Marmot PFL> Looks simple enough to me. I don't see any reasonable move besides 45.Qxc5, when Black finishes White off with 45...Qxe4+ 46.Rg2 Rf1+ 47.Qg1 c1=Q.

Apr-05-18		FSR: Hmm, I spoke too soon - didn't consider the game continuation 45.Bg5. So <Marmot PFL> was right that it was harder than I thought.

Apr-05-18		An Englishman: Good Evening: Saw the first move and both of White best defenses (Bg5 and Bg3). If 45.Bg3,Qf1 seems to do the trick.

Apr-05-18		Gregor Samsa Mendel: I saw 44..Bc5, but wondered what black would do after 45 Bg5. I thought maybe 45..Qf2 would do the trick, didn't see 45..Qxe5. Chess is difficult.

Apr-05-18		ChessHigherCat: I think maybe 44...Bc5 and if 45. Bg5 (Qxc4?? Qxe4+ mates in 2) Qf2 46. Rc1 or Ra1 then Qd2. That's as far as I can get in my befuddled head at this hour.

Apr-05-18		ChessHigherCat: Sorry, I meant if 45. Qxc5

Apr-05-18		ChessHigherCat: Aha, Qd2 isn't possible! Oh well, got the first three moves, that's worth 0 points + a 25% discount coupon for the charity of your choice.

Apr-05-18		ChessHigherCat: <AnEnglishman> If Bg3 c1->Q

Apr-05-18		saturn2: I saw 44..Bc5 threatening c1. White cannot take the bishop and the rook on g1 is attacked. <An Englishman If 45.Bg3,Qf1 seems to do the trick> I would play 45..c1

Apr-05-18		lost in space: No blossoms for me. Haven’t seen the good defensive move 45. Bg5

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		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		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

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