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Bogdan Sliwa vs Wolfgang Uhlmann
Dresden it (1956), Dresden GDR, rd 3, Feb-??
King's Indian Defense: Saemisch Variation (E80)  ·  1-0
ANALYSIS [x]

FEN COPIED

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sac: 25.Rxg6 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jul-26-16  saturn2: My moves were 29 Rh5 Kf4(6) 30 Rf5 etc the king will be chased to death.
Jul-26-16  stst: B-sac:
28.Bg5+ KxB
29.Rg1+ (A) Kf6
30.QxN#

(B).................Kf4
30.Rg4+ Kxf3
31.Qh3+ Kf2
32.Qg2+ Ke3 (if Ke1, Qe2#)
33.Rg3+ Kd4
34.b3 Nf4
35.Qd2+ Nd3
36.QxN#

29.Rg1+ can be changed to Rh5+ for similar variations.

Jul-26-16
Premium Chessgames Member
  Once: I opted for the scenic route:

28. Bg5+ Kxg5 29. Rh5+ Kf4 30. Qh6+

And white will surely round up the black king after a short king hunt. Don't ask me how. I am still eating my breakfast.

The game continuation is better.

Jul-26-16  Cheapo by the Dozen: I went with

28 Bg5+ Kxg5
29 Rh5+ Kf4
30 Rf5+ Ke3
31 Qh1 Nf4
32 Qe1+ Ne2+
33 Qxe2#

Jul-26-16  stacase: 28.Bg5+ sacs the Bishop and allows White's Queen and Rook to go on a rampage.
Jul-26-16
Premium Chessgames Member
  YouRang: Tuesday 28.?


click for larger view

Got it. At first, our (white) queen looks kind of trapped. We can exchange queens, but that goes nowhere.

It seems that we need to launch some sort of attack on black's king, but how? Our Nc3 and Rh1 are incapable. Our Q can't give check effectively.

However, our bishop can give check at g5. Sure black can (and in fact must) capture it, but to do so requires the king to move to g5. There, it becomes exposed to a rook attack.

So, we proceed <28.Bg5+ Kxg5 29.Rg1+>


click for larger view

Seeing this, I was quite sure that this was the right way. At a minimum, I can get a knight back for my bishop after the king moves, but more importantly, the king will wide open to attack from my queen and rook, not to mention some pawns, and mate will come quickly, e.g. <29...Kf4 30.Qh2+ Ke3 (...Kxf3 Qg3#) 31.Qe2+>


click for larger view

Whereever the king goes, the rook follows with mate:
- 31...Kd4 32.Rd1#
- 31...Kf4 32.Rg4#

Jul-26-16
Premium Chessgames Member
  gofer: You gotta be happy to play <25 Rxg6> and know that you have a mate in 6 more...
Jul-26-16  nisharaj31: Is 28Rh5 equally good??
Jul-26-16
Premium Chessgames Member
  agb2002: White has a bishop and two pawns for a rook and a knight.

Black threatens 28... Qxh7.

White can extract the black king with 28.Bg5+ Kxg5 29.Rg1+ Kf4 (29... Kf6 30.Q(R)xg6#) 30.Qh6+ Kxf3 (30... Qg5 31.Qxg5+ Kxf3 32.Qg3#) 31.Qh3+ Kf4 (31... Kf2 32.Rf1#) 32.Rg4#.

-----

The alternative 29.Rh5+ is more involved but more interesting, 29... Kf4 (29... Kf6 30.Rf5#) 30.Qh6+:

A) 30... Kxf3 31.Rh3+

A.1) 31... Kg4 32.Qh5+ Kf4 33.Rf3#.

A.2) 31... Kf2 32.Qe3+ followed by 33.Qf3+ and 34.Rh1#.

A.3) 31... Kg2 32.Rh2+

A.3.a) 32... Kf(g)3 33.Qh3+ Kf4 34.Rf2+ Kg5 35.Rf5#.

A.3.b) 32... Kf1 33.Qh3+ Ke1 (33... Kg1 34.Qg2#) 34.Re2#.

A.3.c) 32... Kg1 33.Ne2+ Kf1 34.Qh3+ Ke1 35.Qg3+ Kf1 36.Qf2#.

B) 30... Kg3 31.Rh3+

B.1) 31... Kf2 32.Qd2+ Kg1 (32... Kf1 33.Rh1#) 33.Rg3+ Kf1 (33... Kh1 34.Qg2#) 34.Qe2#.

B.2) 31... Kg2 32.Rh2+

B.2.a) 32... Kf1 33.Qh3+ as in A.3.b.

B.2.b) 32... Kg1 33.Ne2+ as in A.3.c.

B.2.c) 32... Kxf3 33.Qh3+ as in A.3.a.

B.2.d) 32... Kg3 33.Qh3+ Kf4 34.Qg4+ Ke3 35.Rd2 and 36.Nd1#.

Jul-26-16  WorstPlayerEver: A fatal blunder would be 28. Rh5 I guess.

Juz tezting where things could go wrong...

Jul-26-16
Premium Chessgames Member
  morfishine: <28.Bg5+> followed by 29.Rg1+

*****

Jul-26-16
Premium Chessgames Member
  Sally Simpson: Hi nisharaj31,

"Is 28Rh5 equally good??"


click for larger view

A wonderful idea but foiled by the Black Knight on d7 so Black can just take the White Queen. 28.Rh5 QxQ.

Let us put a Black Rook on d7 by changing the 2nd line of the fen from '/3nq2Q/' to '/3rq2Q/'


click for larger view

Now we see your imaginative idea working. 28. Rh5 QxQ 29.Rf5+ Ke7 30.Bg5 mate. Beautiful.

Alas in the game position Black in answer to 30.Bg5+ can play 30...Nf6.

----

Played over the game. I'm thinking that here. (White to play)


click for larger view

27.Bxe5+ (instead of 27.Bh6+) is an easier an quicker win. It's all forced and only moves.

27.Bxe5+ Kf8 28.Qh6+ Kg8 29.QxN+ mate next move.

I suppose it all comes down to your viewpoint of the term 'easier'.

Jul-26-16  zb2cr: Found this one quickly.
Jul-26-16  saturn2: <Sally Simpson> In your other variation cannot black play 28...Kf7 instead of Kg8? So it is not one and only.
Jul-26-16  Razgriz: Well surely it wasn't a Queen Sac. The knight couldn't go do anywhere relevant, pawns were still a long way away so it was a bishop sac. I was focused on bg7 at first but it quickly rebuffed. So I checked the other square.
Jul-26-16
Premium Chessgames Member
  whiteshark: <28.Bg5+ Kxg5 29.Rg1+> was (good) enough for me.
Jul-26-16
Premium Chessgames Member
  Sally Simpson: Hi Saturn,


click for larger view

27.Bxe5+ Kf8 28.Qh6+ Kf7 Qg7 mate.

Avoiding mate in one is an only move.

NPA.

Jul-26-16
Premium Chessgames Member
  kevin86: White brings opposing king into the open, then sets up a mate .
Jul-26-16
Premium Chessgames Member
  chrisowen: Moot it ebbs g5 ghouls again agos op hand hinch am vow and i vs huff g5 garcon again ji mate it teams in as am agog four mood pass q offs harangue it tell again or am an bind it ebbs again am ash yah i urn o as wham g5 ghouls q harangue it ebbs again flack jack drill man i vow and link vow moot it ebbs again agos op hand hinch am wow and i vs huff g5 gapjam mate it teams in as am agog four dip and pass rubs bus bind code it ebbs yah yin yang i uniforms in appraisal it aloof again u rink ran ar am as avow agog as q harangue it ebbs again am as ha rona and nora g5 gapjam as now avow awooga winch q harangue it tell again avid quagmire it essay in whys g5 ghouls huff flick cad drill man i vow look vow and for won am fluffs again ash camp i g6 guffaw anyway dug back as ha glib back foot it ebbs again am cad i glorifys an i it ebbs vim and vigour ash by dipoff an fad an it essay it et al it aloof again food for call it ebb i dipoff bruv i do an cupoff i oomph afraid links g6 guffaw and bads mint it early in ogle it tell again kinships way crack away f5 fubars and bin by g6 guffaw link dinks mind coops up again as ash in am gump mans banal it aloof again am gab buffof ash hill an dipoff link hungs avow ash an it eggshung link banal it aloof again by flashins and as bishy h6 hugoff link banal it aloof again am by bogof i vow ovid digshums bind f5 fubars wins blogs man amp gangways and guy dipsoffs among h6 huffof bruv gain f5 fubars camp frugal it aloof again uhm ash digsoffs and jog on either as hinch man am g6 guffaw muzzle it try gaslip again ya binds glorys i cross ghouls among guvgos links gaslip agog as q harangue it ebbs agains floghips among h6 hugoff aways f6 fluffs able it ebbs again food for gang am ghoulash;
Jul-26-16
Premium Chessgames Member
  chrisowen: 28.Bg5+s glorys abacus count it ebbs again bus mans hugs basic cab as dab again fab as am i gabba ha banks jab as black and lab ovid as ban as boa call as ha vim aim an pa bland bar as wasabi pour on as ha yabba dabba doos lab lack lad log hallow lack lambs land o vim and vigour lap lags lava flow as law lax ok lay ovid hibiscus q harangue it ebbs again bunks barks block blink call as ha burkha camoflauge it ebbs again am calls whoosh among link g5 garcon as ha goofas ghouls gapjam glocks gailys am go gob glock cog fog agog as and jog on gong ha goo pogo ghouls ago go ya gang gong ghoul hung hang glow mate it teams in am as am agog four mood an food for gang am ghoulash 28...Kxg5 29.Rg1+s go gap info man kinships mate it teams in am as am agog 3 gain basic whup ass balls up as wu ashi bud whip whump backs bugs walks back mind rub avows lack an vocal it aloof again wallow and bill band can fours and o vim and vigour fag pin has as am an jog on as hip link farm as q harangue it ebbs again pop a q hurry avow fang g5 ghouls bank i call cob block avids kinships link g5 guffaw gain am an g1 gab mate it teams in as for 3 go agogs it etc again fly in;
Jul-26-16
Premium Chessgames Member
  Mrcomputer55: What about Rh5 black has nothing else to give up or Qxh7 and Rf5 mate or else Nh4 Rf5+ Nf5 and Qxf5#!

Isn't this more elegant?

Jul-26-16  Patriot: I went with 28.Bg5+ Kxg5 29.Rh5+ Kf4 (29...Kf6 30.Rf5#) 30.Rf5+ etc. which HAS to be winning.
Jul-26-16  Moszkowski012273: 27.Bxe5+... is a less fancy way to win.
Jul-26-16  drollere: i don't get 25. Rxg6 instead of 25. Bxf8, R(or Q)xf8, 26. Rxg6+ ...

anyway, this is a typical open board situation where mate follows if the K starts on the right square -- which is g5. the downside is that the K has low rank flight squares that are hard to close off.

28. Bg5+ Kxg5 (or loses Q)

now there is a p+, 2 Q+ and 2 R+. i chose:

29. Rh5+ Kf4 (or Kf6, Rf5#)
30. Rf5+ Kg3
31. Qxg6+ Kf2
32. Nd1+ Ke2
33. Qg2+ etc.

the line in the game was my alternate, which solves the flight problem:

29. Rh1+ Kf4 (or Kf6, Qxg6+)
30. Rg4+ Kxf3
31. Qh3+ etc.

but i enjoyed the squirmy alternative.

Jul-26-16
Premium Chessgames Member
  Sally Simpson: Hi Mrcomputer55,


click for larger view

Sadly 28.Rh5 does lead to a mate.

After 28...Qxh7 the square d7 is a newly created flight square for the Black King. 29.Rf5+ Kd7 30.Bg5+ Nf6. No mate.

See Sliwa vs Uhlmann, 1956 (kibitz #18)

---

Hi Moszkowski,

I too think 27...Bxe5+ is a less fancy way. But it looks easier, a much quicker mate and more natural than have the Bishop blocking the Rook file.

Just odd how White played it how he did. I do not think it was time trouble, Black resigned before being shown the mate, you don't do that if your opponent has a flag hovering.

But It was White's game, he finished it how he wanted to.

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