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Gideon Stahlberg vs Albert Becker
Club Argentino qual (1944), Buenos Aires ARG
Queen's Gambit Declined: Tartakower Defense. General (D58)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 4 ·  Later Kibitzing>
Jul-26-11  abuzic: 48.Qe1+ wins.

48.Qd8+?? and black will dance with joice, white has no defence aginast 48...f6, facing mate or loss of R or Q

-49.Re8 Qxe8 50.Qxf6+ Kxg4 51.Qf3+ Kg5 52.Qg3+ Kf6 53.Qf4+ Kg7 54.Qg4+ Kh8 55.Qd4+ Qe5+...

-49.Qd4 Qxg8

-49.Qe8 Rd6+ 50.Kh1 Rxe8

All other -49.moves lead to mate, example:
49.Rg5 fxg5 50.Qd4 Qc6 51.Qg1 Qc7+ 52.Kh1 Qg3 53.Qf1 Re1 54.Qxe1 Qxe1+ 55.Kh2 Qg3+ 56.Kh1 Qf4 57.g3+ Kxg3 58.b3 Qf1#

Jul-26-11  David2009: Stahlberg vs A Becker, 1944

48.Qe8+? (seeing 48...Qe7? 49.Qxe7+ Rxe7 50.g3#) fails to 48...f6!, but White has much better: 48.Qe1+! Rxe1 49.g3#. Time to check:
====


click for larger view

Exactly.

Jul-26-11  kevin86: Without the pin,48 g3 would be mate. The queen sac diverts the queen away.

Whimsical to fight queen and queen and then mate with a pawn!

Jul-26-11  Dupleix: Once, your story is simply excellent !
Jul-26-11  stst: One small step by the gP-g3 will do it, but the Bk R is pinning it, so what's the best way to move this R? Q-d8 looks good, but f6 is blocking, so a direct Q-sac: 48.Qe1+ RxQ (what else?)
49.g3#
Jul-26-11  stst: <Whimsical to fight queen and queen and then mate with a pawn!>

this tells the trap - Qd8 and Q block -----> but it's inferior defense by Bk: f6 will block the W Q if going this way.

Jul-26-11  hedgeh0g: A nice finish. After Qe1+! Rxe1 (forced), g3 is mate! :D
Jul-26-11  benjaminpugh: Black actually has two legal moves after Qe1+. Either Rxe1 or Rf2. Of course, Rf2 just leads to Qxf2#, but at least Black doesn't get mated by a pawn.
Jul-26-11  BOSTER: The double isolator pawns, as usual, are weak and need a good protection, but sometimes, like in this game they show irresistible power.

May nice words have been said about pawn g2, but nobody mentioned anything about g4. And I'd say this is unfair ,because only with help g4 black king was involved in mating net,and I'd say on the position pawn on g4 is hanging the outcome of the game.

And if somebody decided to give the prize only to g2 pawn, g4 would say "Shame of you, guys!" and even could leave the board.

Jul-26-11  drnooo: one small step by stalberg but one giant leap for chesskind
Jul-26-11  garrido.benjamin: very easy
queenne1 check
b
Jul-26-11  garrido.benjamin: 21.-RxF6 is the began of one beutifull
combination, please me my inglish
benjamin garrido
goodbye
Jul-26-11  Ghuzultyy: I'm sure I saw it somewhere before.
Jul-26-11  ajile: lol

Took me way too long. Finally realized that it was CHECK on Qe1.

Sep-25-21  Brenin: 21 Rxf6 is an obvious start, but I'm not convinced that there is a forced win for White. Black must recapture with 21 ... gxf6, and then the obvious 22 Ne4 is answered with Rxe4 23 Qxe4 Re8, and Black is safe. Better for White is 22 Rf1 Re5 23 Nf5 Rxf5 24 Qg4+ Kh8 25 Rxf5 Be5, and again it looks although Black can survive. A puzzling puzzle.
Sep-25-21  mel gibson: I wasn't sure.
Stockfish 14 has a different move
and calls it close to a draw.

21. Nf5

(21. Nf5 (♘h4-f5 ♗d6-e5 g3-g4 ♔g8-h7 h2-h3 g7-g6 ♘f5xh6 ♔h7xh6 g4-g5+ ♔h6-g7 ♖f1xf6 ♗e5xf6 g5xf6+ ♔g7xf6 ♘c3-e4+ ♔f6-g7 ♘e4-f6 ♕d7-d6 ♘f6xe8+ ♖f8xe8 a2-a4 ♖e8-e5 ♕c4-c3 ♔g7-g8 ♕c3-g3 ♔g8-f8 ♔g1-h1 ♖e5-e6 ♕g3-c3 ♔f8-g8 ♕c3-d3 ♖e6-e7 ♕d3-a6 ♔g8-g7 a4-a5 ♖e7-d7 ♔h1-g1 ♕d6-e5 a5xb6 a7xb6 ♕a6xb6 ♖d7xd5 ♖d1xd5 ♕e5xd5 ♕b6-a5 ♕d5-d4+ ♔g1-f1 ♔g7-f6 ♕a5-a8 ♕d4-d3+ ♔f1-f2 ♔f6-g7 ♕a8-a5 ♕d3-f5+ ♔f2-e3 ♕f5-e5+ ♔e3-f3) -0.21/38 125)

score for White -0.21 depth 38.

Sep-25-21
Premium Chessgames Member
  profK: The potential for the 49.g3 mate is just soooo cute!!!
Sep-25-21
Premium Chessgames Member
  OhioChessFan: I would guess Black misplayed this but still a spectacular ending.
Sep-25-21  raymondhow: I got the first two moves, but then the Royal Fork threat 23.Ne4 tempted me, which doesn't work.
Sep-25-21
Premium Chessgames Member
  Dionysius1: It's a long way from 21.Rxf6 to 48.Qe1+ 1-0.

Is cg suggesting White missed something quicker? Or is it just conflating two interesting points in the game?

I must say the final mate is fun!

Sep-25-21  drollere: i had 21. Rxf6 gxf6, 22. Ne4 Qd8, 23. Nxd6 Qxd6, 24. Qg4+ Kh7, 25. Nf5 Rg8, 26. Qxg8+ Rxg8, 27. Nxd6
Sep-25-21  agb2002: White has a knight for a bishop.

White can weaken the black castle with 21.Rxf7 gxf6 22.Rf1, threatening Nf5 and Qg4+:

A) 22... Re5 23.Qf4

A.1) 23... Rxd5 24.Nxd5 Bxf4 25.Nxf6+ Kh7 (25... Kg7 allows an eventual Nf5+) 26.Nxd7 Be3+ 27.Kh1 wins decisive material.

A.2) 23... Rg5 24.Qxf6 Kh7 25.Ne4 Be7 26.Nxg5+ hxg5 27.Qf5+ Qxf5 28.Nxf5 wins a pawn with a much better ending.

A.3) 23... h5 24.Ne4

A.3.a) 24... Rxd5 25.Nxf6+ Kg7 (25... Kh6 26.Qh6#) 26.Qf3 wins.

A.3.b) 24... Rxe4 25.Qxb4 and White has recovered the material while Black's position has worsened considerably.

B) 22... Kh7 23.Nf5 Rg8 24.Qf4 Rg6 25.Ne4 Rxe4 (25... Be5 26.Ng5+ looks winning) 26.Qxe4 as in A.3.b.

C) 22... Be5 23.Nf5 is winning.

D) 22... f5 23.Nxf5 f6 24.Qh4, followed by Ne4, looks very good for White.

Sep-25-21  agb2002: For some reason, I missed 23... Re1 in my line A and Black seems to hold.
Sep-25-21
Premium Chessgames Member
  Teyss: I got the first 27 moves in 0.05 second but didn't find 48.Qe1+! Which BTW was a Tuesday puzzle in 2011.

Black did not play the best defence, the decisive mistake apparently being 36...Ke7 instead of Kg7. 37.Rc1 threatens Rc7+ and Rc6 pinning the BQ, this explains 37...Qxd5 but then Q+R initiate a K chase.

For info after 21.Rxf6 SF (15 min) gives -0.9.

Sep-25-21  GlennOliver: Endgame brilliantly fought by both players, and a fitting denouement to the struggle.
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