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Mario Monticelli vs Miguel Najdorf
Warsaw Olympiad (1935), Warsaw POL, rd 14, Aug-26
Queen's Indian Defense: Classical. Traditional Variation Main Line (E19)  ·  0-1



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find similar games 1 more M Monticelli/Najdorf game
sac: 31...Bxg3+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
Premium Chessgames Member
  Phony Benoni: The queen does all the work, but it's the apparently ineffective QB that will deal the fatal blow.
Nov-19-06  syracrophy: 36.♔d3 ♗a6+ 37.♕c4 ♗xc4#
Premium Chessgames Member
  Phony Benoni: 37...Bxc4+ would not be mate, since White can play 38.Kc3. But it hardly matters.
Nov-19-06  syracrophy: CORRECTION: 36.♔d3 ♗a6+ 37.♕c4 ♗xc4+ 38.♔c3 ♖b8! mating fastly
May-04-22  Brenin: 31 Bxg3+ Kxg3 (31 ... Kg1 32 f2+ Kg2 or Kh1 33 d4+ wins the Q) 32 Qd6+ Kf2 (32 ... Kg4 33 Bc8+ with mate to follow) 33 Qh2+ Ke1 (33 ... Bg2 34 Qxg2+ Ke1 35 Qe2 mate) 34 Qg3+ Kd2 35 Qf2+ Kd3 (35 ... Be2 36 Qxe2 mate) 36 Ba6+ Qc4 37 Bxc4+ wins the Q and B.
Premium Chessgames Member
  perfidious: Fairly lengthy line, but forcing and not at all difficult.
May-04-22  Brenin: lWhite has difficulties deciding where to put his Q and DSB. By the time he has decided (on c3 and c1) they are hopelessly placed to defend his weak K-side. Najdorf relentlessly builds up a winning position by making natural moves. The attack starting with 31 ... Bxg3+ more or less plays itself.
Premium Chessgames Member
  Jimfromprovidence: Here is a side puzzle after 31...d4 32 Bc4.

click for larger view

Black to play and win.

May-04-22  mel gibson: I saw that and 2 other solutions.
White is busted with all 3 of them.
I wasn't sure of which one to pick.

Stockfish 15 says:

31... Bxg3+

(31. ..Bxg3+ (♗d6xg3+ ♔f2xg3 ♕e6-d6+ ♔g3-f2 ♕d6-h2+ ♔f2-e1 ♕h2-g3+ ♔e1-d2 ♕g3-f2+ ♔d2-d3 ♗b7-a6+ ♕c3-c4 ♗a6xc4+ ♔d3-c3 ♗c4-b3 ♗c1-d2 ♖f8-f4 ♖d1-c1 d5-d4+ ♔c3-d3 c5-c4+ ♖c1xc4 ♕f2xf1+) +M12/78 36)

Black wins _ mate in 12.

31...g4 and
31... Be5 also work but don't reach checkmate so fast.

Premium Chessgames Member
  agb2002: Black has an extra pawn.

Black can expose the white king with 31... Bxg3+:

A) 32.Kxg3 Qd6+

A.1) 33.Kf2 Qh2+ 34.Ke1 Qg3+ 35.Kd2 Qf2+ 36.Kd3 Ba6+ wins decisive material.

A.2) 33.Kg4 Bc8+ 34.Kxg5 (34.Kh5 Qg6#) 34... Qg6+ 35.Kh5 (35.Kh6 Qg6#) 35... Rf5+ 36.Kh6 Qg6#.

B) 32.Kg1 f2+

B.1) 33.Kg2 d4+ 34.Kxg3 (34.e4 dxc3 wins) 34... Rf3+ (even better than 34... dxc3) 35.Kh2 (35.Kg2 Qxh3#) 35... Rxh3+ 36.Bxh3 Qe5#.

B.2) 33.Kh1 d4+ 34.Bg2 Qe4 35.Qc4+ (35.Bxe4 Bxe4#; 35.Rg1 fxg1=Q+ 36.Kxg1 Qxg2#) 35... Kh8 36.Qf1 Qxg2+ 37.Qxg2 f1=Q+ 38.Rxf1 Rxf1#.

Premium Chessgames Member
  agb2002: I missed a mate in one in my line B.2: 34... Qxh3#.
May-04-22  AlicesKnight: I found the game line break-in and king-hunt. Declining the B (32.Kg1) allows ... f2+ followed by the the other B coming on-stream (incidentally winning the white Q) with ... d4+. The contrast with White's go-back-home clergy is striking.
Premium Chessgames Member
  HeMateMe: Only one move immediately breaks open the position.
May-04-22  Ariogermano: 31...g4
May-04-22  saturn2: <agb2002: I missed a mate in one in my line B.2: 34... Qxh3#.> Moreover there is a mate in two starting with 34...f1R(or Q)
May-04-22  saturn2: 10.dxc5 lost the opening advantage and black got strong centerpawns
May-04-22  TheaN: Very interesting dark square domination by Black here. Starting with <31....Bxg3+>, Black accesses the White king sacrificing the dark square bishop, yet winning primarily over the dark squares, because White can't follow suit with the queen or bishop because they're bystanders.

White's down to two evils, as declining still claims most squares around the king: 32.Kg1 f2+ with 33....d4+ -+. As others, after Kh1 I just traded bishops and took the queen instead of mating, but the key is that White's lost.

The beautiful maneuver after <32.Kg3> is much nicer to follow: <32....Qd6+ 33.Kf2 (Kg4 Bc8+ -+) Qh2+ 34.Ke1 Qg3+ 35.Kd2 Qf2+ 36.Kd3 Ba6+ -+> and the fatal blow is delivered by Black's piece that was minding his own business.

Premium Chessgames Member
  chrisowen: Otb afflict eunuch Bxg3 gift dank cut bog ko black bad add barnaby fuel fire no vim add off c aeschylus ago mate.
Premium Chessgames Member
  raymondhow: Was sleepy when I first started looking, kept wanting to make 31...d4 work but eventually found the game line.
May-04-22  Stanco: 31...Bxg3+
32.Kxg3 Qd6+ 33. Kf2 Qh2+ 34. Ke1 Qg3+ 35. Kd2 Qf2+ 36. Kd3 Ba6+ 37. Qc4 Bxc4+ 38. Kc3 Bb3 39. Rd2 Qxe3+ 40. Rd3 Qxc1#
Premium Chessgames Member
  Dionysius1: Good on yer, puzzle setter! Apparently it's a forced mate starting with 31...Bxg3+ That's the kind of puzzle I like.

Didn't stop me going for 31...Ba6 instead, which isn't crude enough. I thought it would undermine White's kingside protection whether White took the B or not.

Tom agrees with me. But it's just not as good as a forced mate!

Tom = Thomas the Tank ENGINE.

May-05-22  WickedPawn: Najdorf's f3 pawn goes down as one of most annoying pawns in history. Spassky's g3 pawn in Larsen vs Spassky, 1970 tops the list.

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