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Elizbar Ubilava vs Viktor Kupreichik
URS-ch sf Minsk (1983), Minsk URS
Queen's Gambit Declined: Ragozin Defense (D38)  ·  0-1



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sac: 31...Rxf2+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Feb-02-13  Abdel Irada: <alkinoos3844>: Can't White simply reply 32. Rf1, defending the f2 square?
Feb-02-13  fokers13: Qd2 cannot be played.

If you mean Qb2 yeah i chose to pussy out with it as well,it does give a slight advantage to black but is certainly worse than the text.

Feb-02-13  Abdel Irada: I'm assuming he meant that, <fokers13>.

Even so, it doesn't seem to tear open the position as does the sac.

Feb-02-13  BUNA: < alkinoos3844: What about the immidiate 31...Qd2?Ithink it's also winning.>

You probably meant 31... Qb2.
The I'd try
32.Qxa6 Qxc1
33.Qc8+ Kh7 (Bf8 33.Nd7 Qe1 33.Qxf8+ and 34. Bf5+)
34.Qf5+ and repetition

Feb-02-13  smalldreams: <Abdel Irada> 32. Rf1 Bxf1+ ;)

Qb2 actually does work out fairly well for Black though

Feb-02-13  BUNA: <BUNA ..... 34.Bf5+ ...>

Of course 34.Be4+

Feb-02-13  Abdel Irada: <smalldreams>: Good grief. That's what I get for not looking at the position before posting. Mea culpa.

Nevertheless, 31. ...Qb2 does leave White far more defensive options than does the text.

Feb-02-13  mistreaver: Saturday.Black to play. Very Difficult.31...?
To me the first move is very obvious:
32 Kxf2 (white has to take else he is lost after Qxf3) 32... Qb2+ and now :
a)33 Ke1 is bad:
33...Qxc1+ and now:
a1)34 Bd1 Qxe3
a2)34 Kf2 Qd2+
35 Kg1 Qxe3+
36 Kg2 Qd3 and i think black is better here
b)33 Kg1 Qxb1+
34 Kg2 Qf1 mate
Time to check
Lol i missed the best defence by white, altough i found the correct moves (and it was by no means that hard). Half a point for today, now i have to evaluate thursday and friday to see my efficiency for this week.
Feb-02-13  gofer: <31 ... Rxf2+!>

32 Kg1 Qxf3
33 Qa8+ Qxa8
34 Nxa8 Rxa2

32 Kh3 Qxf3
33 Qa8+ Qxa8
34 Nxa8 Bc8+
35 g4 Bd6
36 Rh1 Bg7

<32 Kxf2 Qb2+>

33 Rc2? Qxc2+
33 Ke1 Qc1+
34 Kf2 Qd2+
35 Kg1 Qe1+
35 Kg2 Qf1#

33 Ke1 Qxc1+
34 Kf2 Qf1#

33 Kg1 Qxc1+
34 Kf2/Kg2 Qf1#

<33 Be2 Qxe2+>
<34 Kg1 Qxe3+>
<35 Kg2 Bd3!!>

Perhaps a little easy for a Saturday!


Okay, white played 35 ... Bg5 instead of 35 ...Bd3, but as <morfishine> was thinking the same thing I am not too worried...

Feb-02-13  alkinoos3844: <<Abdel Irada>>,<<fokers 13>>,sorry guys.Of course i meant Qb2.It works very well too!!!
Feb-02-13  kevin86: The rook is unnecessary-the bishops and queen can mate.
Feb-02-13  snakebyt: I first looked at bishop whisking down to offer himself up for sacrifice (which wouldn't work) but then saw the RXf2 sac move. I got this pretty quick.
Feb-02-13  whiteshark: Don't provoke <Viktor, the Terrible>!
Premium Chessgames Member
  Jimfromprovidence: I guess white resigns because he thinks he can't stop the skewer after 39 Kg2 (or Kh1) Bd3.

click for larger view

40 Nc4 provides a bit of a challenge as black must find 40...Qe2+ 41 Kg1 Bf6, below (or 41...Be3+).

click for larger view

Feb-02-13  Patriot: Black has the bishop pair. White threatens 32.Qxa6, and may have a few other forcing ideas like Qa8+, Qb8+, Nd7, and Nd5.

31...Be2 looks slow but is a threat. 32.Bxe2 or 32.Qa8+ seems to defend.

31...Qxf3+ 32.Kxf3 Be2+ 33.Kg2 and black is lost.

31...Rxf2+ -- very strong. 32.Kxf2 Qb2+ 33.Be2 Qxe2+ 34.Kg1 Qxe3+ 35.Kg2. The white king seems to practically get away so it seems I missed an important move along the way.

31...Rxf2+ 32.Kxf2 Qb2+ 33.Be2 Qxe2+ 34.Kg1 Qxe3+ 35.Kg2 Be2 seems slow.

31...Rxf2+ 32.Kxf2 Qb2+ 33.Be2 Qxe2+ 34.Kg1 Bg5 -- This looks very strong. 35.Qa8+ Kh7 36.Qg2 Bxe3+ 37.Kh1 Qxg2+ 38.Kxg2 Bxc1

Premium Chessgames Member
  chrisowen: The demon stair in would faced off a 31...Rxf2+ in king big to the threat nab in 32.kxf2 look to forges see fig in 32...qb2+ demonstrate again tell e2 vision voted favour in tin cut 33.be2 re thats the best of a badder bunch since arm 33.rc2 oh a grin and bear it mate in 4,

Down trodden in revver i f3 i see at e2 single aim inceed staving off imminent high strain just in the nick of time like c1 the tergid e2 see line object for hop 33...Qxe2+ king one step beyond it loose in con beam 34.Kg1 for devious in effecter minimal one arms 34...qxe3+ in dye her cull establish in, heck i copped er v is having question of a fashion in a quad grip?

The point 35.kg2 que2+ have watered down in with any luck now ledged 36.Kg1 bd3 or bg5 method in circulate again empty ramble banked aim cudgels 37.Qa8+ blew away the cobwebs 37.Kh7 for goof in don carriage 38.ra1 scally-wag in magi see d3 up a potion e3#

Kind finish one you averse 36...bd3 i prefer tile go building some g5 alsobind in second it took in fly it grind again e2 e3 in cobbled having pave the way it is hobble in bifurcate 29.nb6 in steadfast 29.Nxc5 looks to have the upper hand in e4 i tab cinch fore head in pardon it is double in a4 b6 it yikes again crew cut e4 and rookd2 just the tonic I suppose a wave in delivery a dog in no time like Rxf2 bask in avarice dry it lighter riff i see trust he in her b2 etc off.

Feb-02-13  Patriot: Ok, I missed the simple 36.Qe4+ g6 37.Nd5, defending. 34...Qxe3+ 35.Kg2 seemed wrong somehow but now I see why that pawn must be eliminated--to eventually make ...Bg5 work.
Feb-02-13  Marmot PFL: Looks like a fairly typical 7th rank combination - 31...Rxf2+ 32 Kxf2 Qb2+ 33 Be2 (else Qxc1+) Qxe2+ 34 Kg1 Qxe3+.

In this game white seemed slightly better throughout, due to black's slow development, but he misplaced the queen and knight and made some tactical oversights.

Feb-02-13  smalldreams: The big problem with ...Qb2 is that it turns white's Qa8+ into a zwischenschach after which white can eventually play Rc2 to cut losses. Black still comes out ahead but the position is less clear imo.
Premium Chessgames Member
  agb2002: Black has the bishop pair for a bishop, a knight and a pawn.

White threatens 32.Qxa6 and 32.Nd5.

The white rook is defenseless. This suggests 31... Rxf7+ followed by Qb2:

A) 32.Kxf2 Qb2+

A.1) 33.Ke1 Qxc1+ 34.Bd1 (34.Kf2 Qf1#) 34... Qxe3+ 35.Be2 Qxe2#.

A.2) 33.Kg1 Qxc1+ and mate in two.

A.3) 33.Be2 Qxe2+ 34.Kg1 Qxe3+ 35.Kg2 (35. Kh1 Qxc1+ 36.Kg2 Qf1#) 35... Qe2+ (35... Qxc1 36.Qxa6 Qb2+ 37.Kh3 Qxa2 38.Qa8+ Kh7 (38... Bf8 39.Nd7) 39.Qe4+ and 40.Qxe7)

A.3.a) 36.Kg1 Bf6 37.Qa8+ Kh7 followed by Bd4+ and Bd3 seems to win.

A.3.b) 36.Kh1 Bd3 37.Kg1 Be4 - +.

A.3.c) 36.Kh3 Bd3 37.Qd7 Qh5+ 38.Kg2 Be4+ 39.Kf2 (39.Kg1 Qe2 - +) 39... Qf3+ 40.Ke1 Qe3+ 41.Kd1 Bg5 with many threats (Qxc1, Bd3, Qg1+, etc.).

B) 32.Kg1 Qxf3 33.Qa8+ Qxa8 34.Nxa8 Rxa2 - + [2B+P vs N].

C) 32.Kh1 Qxf3+ 33.Kg1 Qg2#.

D) 32.Kh3 Qxf3 (threatening 33... Qh5#, 33... Qg2+ and 33... Bf1+) 33.Qa8+ transposes to B.

Feb-02-13  rilkefan: Hmm, this seems kind of obvious for a Saturday, though I'm not looking any deeper than ...Rxf2/Qb2+/Qxe2+/Qxe3+ and bring in the other bishop. Surely white can't hold on to his king and the floating rook, and even if the former doesn't fall immediately it will once the latter does.
Feb-02-13  patzer2: <RandomVisitor: 29.Nxc5 might be better for white.> Yes 29. Nxc5 to snatching a pawn with no complications and good winning chances is much better than 29. Nb6?, which loses immediately to 29...e4!

Indeed, 31...Rxf2+! is actually a followup to the winning combination Black initiates with 29...e4!

Feb-02-13  M.Hassan: "Very Difficult"
Black to play 31...?
Black is a pawn down.

White's response could be 32.Qxe7, 32.Qa8+ and 32.Qxa6 and i am considering the first one due to shortage of time.

32.Qxe7 Rxf2+
33.Kh3 Rxh2+
34.Kg4 Qxc1
35.Qe8+ Kh7
36.Be4+ g6
37.Qxf7+ Kh8
38.Bxg6 threatening mate on h7
And White Queen is lost for a Rook.

Feb-02-13  James D Flynn: White is a pawn up but on the moave Black can exploit the weaknesss of the 1st and 2nd ranks 31.R xf2+ Kxf2 32.Qb7+ Be2(not Kg1 33.Qxc1+ Kf2(or G2) 34.Qf1#) 33.Bxe2(not Qxe2+ Kg1 34.Bg5 Qa8+ 35.Kh2 Qe4+ 36.g6 Nd5 holds, now Bg4+ is threatens followed by Bh3 and mate on g2)) Kh3 36.Bf3(threat Qg2#) Rg1 37.Qf2 wins the R with mate to follow.
Feb-03-13  avidfan: Errata: <agb2002>'s 31...Rxf7+ should read 31...Rxf2+

<J D Flynn>'s 31.Rxf2+ should indicate Black's move as 31...Rxf2+ 32.Kxf2 Qb2+ 33.Be2

After 33...Bxe2, I am lost - (moves seem to be missing after the confusing variations in brackets before reaching Kh3 & Bf3). I suggest using the format of <agb2002> to improve readability.

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