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Hugo Spangenberg vs Lubomir Ftacnik
Moscow Olympiad (1994), Moscow RUS, rd 13, Dec-14
Sicilian Defense: Closed Variation (B23)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Feb-25-04
Premium Chessgames Member
  Honza Cervenka: A beautiful game with a pretty final shot. After 24.Nc7 black could have followed 24...Bxg2+ 25.Kh2 e5 26.Qd3 (26.Rf2 Bc6 ) 26...Bxf1 27.Qxf1 Qc6
Aug-26-04  notyetagm: This game is included in John Nunn's 101 Brilliant Chess Miniatures.
Sep-20-09  Garech: I have done a youtube analysis of this game using Fritz, please check out the following link if you are interested - thanks!

http://www.youtube.com/watch?v=Nz50...

Jan-25-16  clement41: Nice shot at the end
Mar-04-16  ToTheDeath: Great refutation of a premature attack, and what a finish!
May-09-18  agb2002: A good Wednesday puzzle at move 24.
Thursday to Friday at move 23.
Aug-15-23  Mayankk: White's position is so dire that it seems only a matter of time. 24 ... Qg3 just rubs salt in its wounds. It threatens 25 ... Qxh3# and if the Queen is taken then the Black Knight gobbles up everything.

25 Bxg3 Nxg3+ 26 Kh2 Nxf1+ 27 Kh1 Nxd2 28 Rxd2 (finally). Time to count the pieces and resign.

Aug-15-23  Brenin: The weak point in White's position is g3, so let's put Black's strongest asset there: 24 ... Qg3, threatening Qxh3 mate. Then 25 Qd3 allows Bxg2+ 25 Rxg2 Qxg2 mate, so White must play 25 Bxg3 Nxg3+ 26 Kh2 Nxf1+ 27 Kh1 Nxd2 28 Rxd2 Kxe8 29 Rxd4 Rxg2, and Black is a piece up with a clear win.
Aug-15-23  jrredfield: I wasn't sure at first between 24 ... Qg3 and 24 ... Ng3. It appeared after a longer look like Ng3 only results in a draw. So then I began to see the forks, especially the king/queen fork by the knight, and Black is quickly well ahead in material.

24 ... Qg3
25 Bxg3 Nxg3+
26 Kh2 Nxf1+
27 Kh1 Nxd2
28 Rxd2

Aug-15-23  Allderdice83: I totally missed 24 ... Qg3! I was looking at 24 ... Qh5, threatening 25 ... Qxh3+. 25. Qb4+ Kxe8 26. Ba4+ or 26. Rxe6+ doesn't do anything for White, the Black king easily escapes. Attempts to defend also fail:

25. Rf3 Bxf3 26. gxf3 Qxh3+ 27. Bh2 (or Rh2) Rg1#. Or 26. Bh2 Qxh3.

25. Bh2 Qxh3 26. Rxf5 Qxf5 27. Qd1 Qh3 28. Qd2 Be5 29. Rxe5 Bxg2+ 30. Kg1 Bc6+ 31. Kf2 Qxh2+ 32. Ke3 Qxe5+ 33. Kf2 Rg2+ 34. Kf1 Rxd2

25. Qd3 Ng3+ 26. Qxg3 Rxg3 27. Bxg3 Qxe2

Basically, White's lost in any of these lines. Without checking with Stockfish, it looks like 24 ... Qh5 is winning, but not as spectacular or as forcing as 24 ... Qg3.

Aug-15-23  mel gibson: I have failed a Tuesday puzzle -
I didn't see that.

Stockfish 16 says:

24. .. Qg3

(24. .. Qg3 (Qg6-g3 Bf4xg3 Nf5xg3+ Kh1-h2 Ng3xf1+ Kh2-h1 Nf1xd2 Ne8-c7 Rg8xg2 Re2xg2 Bd4-e5 Nc7-b5 Nd2-f3 Rg2-e2 Nf3-d4+ Re2-g2 Nd4-e2 c4-c5 Ne2-f4 Kh1-g1 Bb7xg2 Bb3xe6 b6xc5 Nb5xa7 Be5xb2 Kg1-f2 Bg2-b7 Be6-g4 Bb2-d4+ Kf2-g3 Bd4-e5 Bg4-f5 h7-h5 Bf5-c8 Bb7-d5 Bc8-g4 Nf4-g2+ Kg3-f2 Be5-d4+ Kf2-e2 Ng2-f4+ Ke2-d2 Nf7-d6 Kd2-d1 h5-h4 Na7-b5 Nd6xb5 a2-a4 Nb5-c3+ Kd1-d2) +6.06/43 254)

score for Black +6.06 depth 43.

Aug-15-23  mel gibson: I found another move which is almost as strong:

Stockfish 16 says:

24. .. Be3

(24. .. Be3 25. Rxe3 (Re2xe3 Bb7xg2+ Kh1-h2 Bg2xf1 Qd2-b4+ Kf8xe8 Bb3-a4+ Ke8-d8 Qb4-d2+ Kd8-e7 Qd2-b4+ Nf7-d6 Re3-g3 Qg6xg3+ Bf4xg3 Rg8xg3 Ba4-c6 Rg3xh3+ Kh2-g1 Bf1xc4 Qb4-d2 Rh3-g3+ Kg1-h2 Rg3-g4 Bc6-f3 Rg4-d4 Qd2-g5+ Ke7-d7 Kh2-g1 Bc4-d5 Bf3xd5 Rd4-d1+ Kg1-f2 Rd1xd5 Qg5-g4 Rd5-d4 Qg4-e2 Rd4-a4 a2-a3 Kd7-e7 Qe2-f3 Ra4-c4 c2-c3 Rc4-e4 Qf3-h5 h7-h6 Qh5-g6 Nd6-f7 Qg6-g8 h6-h5 Qg8-a8 Re4-a4 c3-c4 Ke7-f6 Qa8-c6 Ra4-a5 Qc6-d7 h5-h4 a3-a4 h4-h3 Qd7-d2 Ra5xa4 b2-b3 Ra4-a5 Qd2-b2+ Ra5-e5 b3-b4 a7-a5 c4-c5 b6xc5) -5.04/47 740)

score for White -5.04 depth 47.

Aug-15-23  Nov8: Got it easy this time!
Aug-15-23  agb2002: I know this game.
Aug-15-23  agb2002: jrredfield mentioned the attractive 24... Ng3+.

This move is met with 25.Rxf7+ Kxf7 (25... Kxe8 26.Rxb7) 26.Nd6+, but not 25.Qh6+ Kxe8 26.Qxe6+ Kd8 and the black king is far safer than White's.

Aug-15-23  saturn2: 24....Qg3 threatens Qh3+ and if 25.Bxg3 the knight picks up everything
Aug-15-23
Premium Chessgames Member
  Korora: Stick a FORK in White; he's done.
Aug-15-23  griga262: Just as <mel gibson>, I went with 24. .. Be3. Am I missing something (other than the now obvious winning move), or is it a valid continuation?
Aug-15-23
Premium Chessgames Member
  chrisowen: Luv its code its wag fit rank Qg3 gab ebb aka bits lack Qg3 bug?
Aug-15-23
Premium Chessgames Member
  little ernie: Agree with mel gibson. I preferred 24 ...Be3 rather than the queen sacrifice. This position is slightly cooked.
Aug-15-23  varishnakov: To me this wasn't easy. There are a lot of candidate moves, and the continuations aren't forcing. I did eventually go with ...Qg3 though.
Aug-15-23  King.Arthur.Brazil: I didn't saw 24... Qg3 sure. It is very strong: Bxg3 Nxg3+ 26. Kh2 Nxf1+ 27. Kh1 Nxd2 28. Rxd2 e5, with an extra piece. I would not see it.

I thought of a direct check: 24...Ng3+ 25. Kh2?? Nxf1+ 26. Kh1 Nxd2 (lose the ♕, I love to take her... lgs). 25 Bxg3 Qxg3 26. Rf3 (to protect h3, because 26. Qd3 Bxg2+ 27. Rxg2 Qxg2#) Bxf3 and W cannot avoid Qxh3#: 27. gxf3 Qg1#. Or 27. Rf2 Bxf2. I must say also: 26. Rxf7+ Kxf7 27. Nd6+ Qxd6 28. Qh6. The game is not finished.

However, people like me tends to lose good opportunities, because they don't believe in their own luck. Suppose B did a move like: 24... Nh4? to capture g2. It could look good, but it wastes a precious 'tempo'. A) 25. Qb4+ Bc5! good.
B) Other possibility is 25... Kxe8?! 26. Ba4 + Kc8 27. Bc7+? Kxc7?! 28. Qe7+ Kb8 29. Qxh4 Bxg2+ 30. Kh2 Bxf1 31. Qf4+ Kc8 32. Qxf1 (W is still alive). 27... Kc8 and W has no defence. C)Other interesting line (not forced) is: 25. Qb4+ Kxe8 26. Rxe6+ Qxe6 27. Re1 Bxg2+ 28. Kh2 Nf3#.

After 24... Nh4, W can play: 25. Nd6! (Bxg2+ 26. Rxg2 Qxg2+ 27. Qxg2 Nxg2, B earned nothing) ) Ba8 26. Ne4 Bxe4 27. Rxe4 Qxe4 28. Re1 Qxg2+ 29. Qxg2 Nxg2 30. Re4 e5 31. Bh2 Nd6 32. Re2. Nf4.

However, B cannot capture ♘d6: 25... Nxd6?? 26. Bxd6+ Ke8 27. Ba4+ Kd8 28. Qxd4 Bxg2+ 29. Kh2 Bxf1 30. Bg3+ Kc8 31. Qd7#.

Aug-15-23  King.Arthur.Brazil: Be3!! is superior! It demolishes any defense:

25. Qe1 Bxg2+ 26. Kh2 Bxf1 27. Qxf1 Bxf4+ 28. Kh1 Ng3+ 29. Kg1 Nxf1+ 30. Kxf1 Qg1# 25. Qxe3 Nxe3 26. Bxe3 Bxg2+ 27. Kh2 Qg3+ 28. Kg1 Be4+ 29. Rg2 Qxg2#

All the lines lead to check mates.

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