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Frank Roeder vs Wolfgang Zbikowski
Bundesliga (1982/83), FRG
Modern Defense: Standard Defense (B06)  ·  1-0



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sac: 24.Rxg6 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Jun-15-13  nalinw: First! Thought that Rxg6 was the only way to go - but didn't get the follow through.
Jun-15-13  TrueFiendish: i thought Bd4 immediately might have been possible...
Jun-15-13  PhilFeeley: I also thought Rxg6 was a good start, but I was going to follow up with Bh6, not Bd4.

Well played by white.

Jun-15-13  M.Hassan: "Very difficult"
White to play 24.?
White is a pawn up.

White has the diagonal a2g8 at his disposal.e6 pawn is supporting the Knight on this diagonal. He can have the long diagonal of a1h8 at his control also if he lets go of his Queen:

24.Rxg6+ Bxd3
2 5.Bd4
<if...Kh7 26.Rxg7#>

25.........Nxe6 to remove the support of the Knight.
26.Bxe6 Rxf7
27.Rxg7+ Kh8 (Rook is pinned)
28.Rxf7+ Kg8
29.Rxe7+ Kf8
White's Queen sac paid off now
30.Rxe8+ Rxe8
31.Nd7+ Ke7
32.Bxf5 Bxf5
33.Rxf5 Kxd7+

click for larger view

Black is virtually left with one pawn (h5 will be gone soon) and the storm of White pawns will cause Black to resign. Let's check

Jun-15-13  morfishine: At first, this looked so busy I thought "I'll just take the day off" but then figured "Oh, what the heck"

<24.Qxe4> To allow the Q-rook to swing over and join in the fun

<24...fxe4 25.Rxg6 Qc6 26.Rxh5 Rxf7 27.exf7+ Kf8 28.Rh8+ Bxh8 29.Rg8#>

No doubt there are holes, but "Oh, what the heck"

Jun-15-13  Boerboel Guy: Got the first move...but that's not good enough! Excellent play by white!
Jun-15-13  diagonalley: <boerboel guy / nalinw> me too
Jun-15-13  peterjam: <24... Kh7 25. Rxg7+ Kxg7 26. Bd4+ Kh7 27. Rxf5!! Bxd3 28. Rxh5+Kg6 29. Rg5+ Kh7 30.Rg7# is a nice line>
Jun-15-13  Dr. Funkenstein: White to play with white up one pawn with the queen and b2 threatened by blacks bishops

White has his own threats should the queen not be attacked with moves like Nd7 and Rxa6.

However, it looks like white has the shot

24. Rxg6

24. ..Bxd3 25. Bd4 (threatening Rxg7#) Nxe6 (Rxf7 26. exf7+ Qxf7 27. Rxg7+ Kf8 28. Rxf7+ Ke8 29. cxd3 leaves white up material) 26. Bxe6 Rxf7 27. Rxg7+ Kf8 28. Rxf7+ leaves white up material

24. …Kh7 25. Rxg7+ Kxg7 26. Bd4+ Kh7 (Kg8 27. Qg3+) 27. Rxf5! Rxf7 ( Bxd3 28. Rxh5 Kg6 29. Rg5+ Kh7 30. Rg7#) 28. Rxh5+ Kg6 (Kg8 29. exf7+) 29. Qe3 and I can’t see a defense against Qg5 and Qh6

24. …Nxe6 25. Bxe6 Bxd3 26. Bd4 Rxf7 27. Rxg7+ Kf8 28. Rxf7+ Qxf7 29. Bxf7 leaves white up a piece

Jun-15-13  Abdel Irada: Apparently Monday came early this week.

In addition to the "main" solution, I am interested in <morfishine>'s alternative, <24. Qxe4>, on which I have also spent some time and for which I have not so far seen a refutation.

If I find time to look at the position in sufficient detail, I may follow up on this later.

Jun-15-13  Dr. Funkenstein: Mostly, there, I missed the more efficient game line in my first line. My line also wins a piece, but Roeder throws in the intermezzo 28. Nd7+ to force the trade of another pair of pieces and leave a simpler ending
Jun-15-13  mistreaver: Saturday. White to play. 24.? Very Difficult.
The whole board is on fire. My initial idea was to sacrifice the queen by Rxg6. 24 Rxg6
Black has various replies.
A) 24... Bxd3
25 Bh7
and now key resource is:
25... Nxe6
26 Bxe6 Rxf7
27 Rxg7+ Kh8
28 Bxf7 Qd8
29 cxd3
and i think white has winning attack and alot of pieces for queen. B) 24... Nxe6 25 Qxa6 Rxf7
26 Bxe6 and with
27 Bxf7 comming white is just winning
C) 24... Kh7
25 Bd4 and after this move i think white is again winning. Time to check and see whether everything above is correct. ------------ Hmm, in variation A) instead of 25 Bh7... 25 Bd4 is much stronger, since the line given by me is not so clear. After 28... Qc6! 29 cxd3 Nb4! things are not so clear altough white retains some advantage. My B line is clear enough for a win In C line, if one posseses a computer, there is immediate and beautiful win with: 24 Rxg6 Kh7 25 Rxg7!+ Kxg7
26 Bd4+ Kh7
27 Rxf5!! with the treat of taking the h pawn against which black has no defence. But even with 25 Bd4 white can win in many ways, for instance 25 Bd4 Nxe6 26 Rxe6 Bxd3
27 Ng5+ Kg8
28 Rg6+ d5
29 Rxg7+ Kh8
30 Rh7+ Kh8
31 Rh8 mate.
Beautiful game and tactics.
Jun-15-13  jrpg: I saw that 24.Rxg6 was that most likely first move but decided that 24.Qxe4 as preferred by Morfishine and Abdel Irada added additional options in a position too complicated for me to calculate. Is there a defence?
Jun-15-13  Abdel Irada: In the 24. Qxe4?! line, it looks so far as though 25. ...d5 blunts the impact of White's sacrifice by locking out a defender of the pawn on e6 and the knight on f7, although so compromised is Black's position that the first player still emerges with an advantage.

However, upon further analysis, it seems to me that the text sacrifice 24. Rxg6 is more decisive.

Jun-15-13  morfishine: <Abdel Irada> Yes, 24...d5 is better than 24...fxe4 and an immediate 24.Rg6 is more precise. The best I could do was end up 2-pawns ahead after: <24. Qxe4 d5 25.Qxf5 gxf5 26.Bh6 Rxf7 27.exf7+ Qxf7 28.Rxg7+ Qxg7 29.Bxg7 Kxg7 30.Nxd5 Nxd5 31.Rxd5 Kg6>
Jun-15-13  agb2002: White is one pawn ahead.

Black threatens 24... Bxd3.

The weak dark squares around the black king suggest 24.Rxg6, with the idea 25.Bd4 and 26.Rxg7#:

A) 24... Bxd3 25.Bd4

A.1) 25... Nxe6 26.Bxe6

A.1.a) 26... Rxf7 27.Rxg7+ Kf8 (27... Kh8 28.Rxf7+ Kg8 29.Rg7+ and mate next) 28.Rxf7+ Qxf7 (28... Kg8 29.Rg7+ and mate next) 29.Nd7+ Ke8 30.Bxf7+ Kxd7 31.cxd3+ - [2B+P vs N].

A.1.b) 26... Qxf7 27.Rxg7+ Kh8 28.Rxf7+ Kg8 29.Rg7+ Kh8 30.Rxe7+ Rf6 31.Bxf6#.

A.2) 25... Rxf7 26.exf7+ Qxf7 (26... Kf8 27.Bxg7#; 26... Kh7(8) 27.R(B)xg7+ and 28.fxe8=Q wins a lot of material) 27.Rxg7+ and 28.Rxf7+ wins.

A.3) 25... Qxf7 26.exf7+ is similar to A.2.

B) 24... Kh7 25.Rxg7+ Kxg7 26.Bd4+ Kh7 (26... Kg6(8) 27.Qg3+ Kh7 28.Qg7#) 27.Qe3 Rxf7 28.exf7 Qf8 (28... Qd8 29.Qg5 + -) 29.Nd7 Qh6 30.Qxh6+ Kxh6 31.Nxb8 + -.

C) 24... Nxe6 25.Bxe6 Rxf7 (25... Bxd3 26.Bd4 transposes to A.1) 26.Bd4

C.1) 26... Bxd3 27.Rxg7+ transposes to A.1.a.

C.2) 26... Qf8 27.Qg3 Kh7 28.Bxf7 Bxd4 (28... Qxf7 29.Rxg7+) 29.Qg5 Bg7 30.Qxh5+ Bh6 31.Nd7 seems to win.

C.3) 26... Kf8 27.Bxg7+ Rxg7 28.Rxg7 Kxg7 (28... Bxd3 29.Rg8#) 29.Qxa6 wins a piece.

D) 24... Nc5 25.Qc3 N5xe6 26.Rxg7+ Nxg7 27.Nxd6+ wins the queen.

Jun-15-13  kevin86: White wants to take advantage of a crowded position---and he does.
Premium Chessgames Member
  chrisowen: I bind goggle yes it hope in honour again be true,

24.Rxg6 whose to blame it down 24.Bxd3 in dutiful age reckon in lowed 25.bd4 again got go nefarious queened eg off badgered in oggy oggy one gamble,

mission it select in seems it horde 25.Nxe6 in hammer 26.Bxe6 curious one for five move deep it nice in no time like glibs g6 alive it is dead in dig free gauge it oblivion in jail house he.

Biblical be effort 26.Bxe6 Rxf7 one re st back in g7 oh for the wall ace spine wave rhyme it her bind,

in f7 jangle do apostle 27.Rxg7+ at good give spark in harbour drilled 27.Kf8 bore in mind alive hastle,

gab it is kings in goodgame I think to ascent re as on it herded d7 in hover e8 straight in cattling 28.nd7+ preface the point bag rook go ar coasting 28.Qxd7 my ramble good leg up ply it now in evermore line at dervish tease ha climbings,

29.Rxf7+ a foiling back in dredge rich again really it is pin ok drawforth 29...Ke8 good while in go a oomph 30.Bxd7+ ratchet back delicate boom 30...kxf7 orange grove in blew also got o 31.cxd3 hand over the loot a finger dude light sage chain gang free,

piece up in case you doing a cliff edge off see red in bull 24.qxe4 I on engage line a5 over meticulous again g6.

Premium Chessgames Member
  Jimfromprovidence: There is a very pleasing finish after 24...f4, which on the surface attacks two white pieces.

click for larger view

Jun-15-13  agb2002: <Jim>Yes, indeed: 25.Rxg7+ Kxg7 26.Qd4+ Kg6 (26... Kg8 27.Qh8#; 26... Kh7 27.Qxe4+ and mate next) 27.Qxe4+ Kg7 (27... Kf6 28.Bd4#) 28.Bd4+ Kg8 29.Qg6#.
Jun-15-13  whiteshark: <mistreaver: <24 Rxg6 .. A) 24... Bxd3 25 Bh7 and now key resource is: 25... Nxe6 26 Bxe6 Rxf7 27 Rxg7+ Kh8 28 Bxf7 Qd8 29 cxd3 and i think white has winning attack and alot of pieces for queen.>>

My line exactly (except the typo 25 Bh7 which should be read as <25 Bh6>).

Jun-15-13  Patriot: 24.Rxg6 is interesting.

24...Bxd3 25.Bh6 Nxe6 26.Bxe6 Rxf7 27.Rxg7+ Kh8 28.Bxf7 looks very complicated.

24...Kh7 25.Rxg7+ Kxg7 26.Bd4+ Kh7 27.Qe3 is interesting but it doesn't seem clear.

Oh well...enough time on this.

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