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Bogdan Pietrusiak vs Dragoljub Velimirovic
Rubinstein Memorial 2nd (1964), Polanica-Zdroj POL, rd 13, Aug-??
Sicilian Defense: O'Kelly Variation. Venice System (B28)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Given 29 times; par: 31 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Oct-09-09  ounos: Unless I'm missing something, 13. h3 seems more solid defense. After g3 Qf7 and e5, black position springs with life.
Oct-09-09  Atking: <ounos> That's the reason I gave the game of Naoko san. 13.h3 Bh2+ 14.Kf1 Nxf2 15.KxNf2 Qg3+
Jul-20-13  Doniez: Too difficult for me. The final sequence is a good example of how to combine most pieces to grind the king move after move.
Jul-20-13
Premium Chessgames Member
  diagonalley: managed to get the first three moves, but didn't see 21.... Q-N6. the exchange sacrifice to kick off with was fairly intuitive though
Jul-20-13
Premium Chessgames Member
  Dionysius1: It's nice that 22 Qe1 doesn't work.
Jul-20-13  M.Hassan: "Very Difficult"
Black to play 18...?
Black is a pawn down.

18..........Nxf2
19.Rxf2 Rxf4 to open the g file
20.gxf4 Qg4+
21.Kf1 Qg3
22.Rg2 Bh3 Bishop pinns the Rook
23.Qxd5+ Kh8
24.Nd4 Nxd4
25.Qxb7
Queen does not want to loose the long diagonal, that's why did not capture the black Bishop on c5.

25...........Rf8
26.Bf3 Bxg2+
27.Bxg2 Rxf4+
28.Bf3 Rxf3+
29.Qxf3 Qxf3+
Black's win is obvious.

Jul-20-13  dick50: Exploiting Traffic white jam on f file, Black creates a freeway on g file to corner stranded King. So Rxf4 followed by Nxf2
Jul-20-13  newzild: <M.Hassan> In your line, instead of 24...Nxd4?, Black wins immediately with 24...Bxd4.
Jul-20-13  newzild: I found this puzzle to be quite easy for a Saturday. However, I went for an alternative move order with 18. Nxf2 first, before saccing on f5.
Jul-20-13
Premium Chessgames Member
  agb2002: Black is one pawn down.

Black can further weaken the white castle with 18... Rxf4 19.gxf4 Nxf2:

A) 20.Rxf2 Qg4+

A.1) 21.Kf1 Qg3 (with the multiple threat Qxf2#, Bxf2, Bh3+, etc.; 21... Qh3+ looks also winning) 22.Rg2 (22.Rh2 Bh3+ 23.Rxh3 Qf2#) 22... Bh3 23.Qxd5+ Kh8 24.Nd4 (24.Qxc5 Bxg2+ 25.Kg1 Bh3+ 26.Kh1 Qg2#) 24... Bxd4 with threats like Qf2#, Rf8, Qh2 looks winning.

A.2) 21.Kh1(2) Bxf2 recovers material and keeps the attack.

B) 20.Qb3 Qg4+ 21.Kh2 Qh3+ 22.Kg1 Qh1#.

Jul-20-13
Premium Chessgames Member
  morfishine: Mate at g2

18...Rxf4 19.gxf4 Nxf2 20.Rxf2 Qg4+ 21.Kf1 Bxf2 22.Kxf2 Rf8 23.Qd2 d4 24.Nxd4 Rxf4+ 25.Nf3 Qxh4+ 26.Kf1 Bh3+ 27.Kg1 Qg3+ 28.Kh1 Qg2#

**********
PM: As scary as it looks, 22.Rh2 looks to be a better defense

Jul-20-13  inmate5: <morfishine: 22.Rh2 looks to be a better defense> That doesn't help either: 22...Bh3+ 23. Rxh3 Qf2++
Jul-20-13
Premium Chessgames Member
  morfishine: <inmate5> Ouch, that was a silly idea :)
Jul-20-13
Premium Chessgames Member
  kevin86: The rook sac causes a quick breakthrough!
Jul-20-13  Patriot: 18...Rxf4 looks devastating.

19.gxf4 Ne3 20.Qd2 Qg4+

19.gxf4 Ne3 20.fxe3 Bxe3+ 21.Kh1 Qg4 looks very strong

19.gxf4 Ne3 20.fxe3 Bxe3+ 21.Rf2 Qg4+ 22.Kf1 and perhaps 22...Qh3+. I'm not so sure on this line.

Jul-20-13  James D Flynn: Black is a pawn down but his pieces are poised for an attack on the castled White K. 18……Rxf4 19.gxf4 Ne3(threats Q g4+ and mate on g2 and Nxd1 therefore the N must be taken) 20.fxe3 Bxe3+ 21.Kh1 Qg4 22.Nh2 Qh3 23.Rf3 Qxh4 24.Qf1 Rf8 25.f5 Nxe5 26.fxe6 Rxf3 27.Qg2 Rg3 28.Qf1 Rh3 29.Qg2 Bxf4 wins the N on h2 with mate to follow after 40.Qxh2 and 31.Qxh2#
Jul-20-13
Premium Chessgames Member
  chrisowen: Aka firm hand affable special fxf4 dire consequences for light goofed h4 allow ground sac ie advance elephant om see at herded rustler he had toe for one f8 see fed extra pawns a fetch you go c5 knight g4 post cold ear a ratchets 18.h4 Rxf4! black rook cuffed off f4 hoof bed come to fruition flap go figure g2 wolf at the door cadence to ogle a fakir chaff and wheat sweet sac took a fold eli very shrewd scratch f4 and angle g3 force street here curious queen have nice at a catapults 19.gxf4 i shoulder v is h5 raids fickle duty a segregate 19...Nxf2 suffix bishop and a black knights fader f1 crossover ignoble foil 20.Rxf2 qg4+ see old gates tooth and claw edge food for feel I've sat up queen wary a cane be a Kf1 oomph call corners we deem path one hack you to h1 steam good c5 for pots in f2 o describe one free gab see knight suffi x a cut is meddle hatch efface lo ok 22.nh2 a dip light will pen nigh on h4 plus f4 mode e5 also debatable epi centre collapse on account back to ha i 21...Qg3 give bete noire cooed f2 iffy oh door to boot 22.rg2 bh3 23.qxd5+ you swindle a cheapo staled checked g8 hoodwink as arc 23...Kh8 to boat 23.qxc5 re effectively as er vantage band land 24.nd4 ie show symbol crash hopeless case cede 24.Nxd4 sudden ground to a halt h5 etc or c5 apt g2 you re bus h3 goodbye sub a bed see to you can be herd have 24.Qxc5 moot prod juicy free choose g2 bad judgement call ha da mage honoured a hook rook g2+.
Jul-20-13
Premium Chessgames Member
  Jimfromprovidence: If 21 Kh1 instead of 21 Kf1?, then after 21...Bxf2 22 Qf1, things don't look that clear cut.


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Jul-20-13  cyclon: Don't know what Black played here and didn't see a mating combination, but I found 18. -Rxf4 ( idea behind this move is to open up g-file and break White's King-sides pawn-structure ) 19. gxf4 ( there doesn't seem to be an alternative to this move, f.e. 19. Nh2 Rd4 followed by 20. -Ncxe5 ) -19. -Nxf2 20. Rxf2 ( practically forced; 20. N(f3)- somewhere - Qg6+ and 21. -Nxd1 - threat was anyway 20. -Qg4+ 21. Kh2 Qh3+ 22. Kg1 Qh1X. ) -20. -Qg4+ 21. Kh1 ( 21. Kf1 Qg3 22. Rg2 [ 22. Rh2 Bh3+ ] -Bh3 23. Qxd5+ [ 23. Ne1 Qf2X ] - Kh8 24. Qxc5 Bxg2+ 25. Kg1 Bh3+ and mates next ) -21. -Bxf2 and in my view this one is a possible position behind Black's combination starting with 18. -Rxf4. Material is temporarily "even", BUT White will soon lose both his h- and f-pawns if Black so wishes, his King's position is in ruins and Queen-side is lacking in development. More-over, -d5 is taboo ; 22. Nxd5 Qh3+ 23. Nh2 Bg3 24. Qg1 Bxd5+ curfew. So, the combination gives Black a win-entailing game. Unless I'm mistaken, of course.
Jul-20-13  LIFE Master AJ: After about 10-15 minutes, I went for 18...RxB/f4!? (Not sure if it is winning, though, its a nice attack, too many variations to be sure if it wins.)
Jul-20-13  cyclon: <James D Flynn: Black is a pawn down but his pieces are poised for an attack on the castled White K. 18……Rxf4 19.gxf4 Ne3(threats Q g4+ and mate on g2 and Nxd1 therefore the N must be taken) 20.fxe3 Bxe3+ 21.Kh1 Qg4 22. Nh2 > Why 22. Nh2? White is a Rook up and can safely give some material back for example with 22. Rg1. There are also some other deviations in your line.
Jul-20-13  gars: Of course I ewnt wrong from move 18 but who cares? This is a wonderful combination!
Jul-20-13  GilesFarnaby: <Jimfromprovidence: If 21 Kh1 instead of 21 Kf1?, then after 21...Bxf2 22 Qf1, things don't look that clear cut.>

I calculated until 21.Kh1 and then left it 'cause I didn't see a clear win. Laziness didn't allow me to ask here, but since JFP raised the question himself, does anyone have a take on it?

Jul-21-13  LIFE Master AJ: BTW - this is another case of "knowing the solution" ... based on what day of the week it is.

(Fridays thru Sundays almost always contain a sacrifice of some sort, usually the crazier the sack, the better.)

Needless to say, you WON'T know this this in a real chess tournament, no one will whisper in your ear, "It's time to sack a piece."

Jul-21-13  LIFE Master AJ: <JimfromProvidence> Your line was the one I got hung up on ...
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