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Pedro Jorge de Moraes Pinto vs Wagner Martins Madeira
BRA-ch sf (1982), Goiania, rd 1, Apr-??
English Opening: Symmetrical. Three Knights Variation (A34)  ·  0-1



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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Aug-24-15  M.Hassan: 27.......Qg1+
28.Nxg1 Rf1#
Aug-24-15  saturn2: Mate in two by Qg1 and Rf1.

<patzer2 The clearly decisive mistake is 23. Qd2?, allowing 23...Qd4! (-3.00 @ 22 depth). Instead 23. Qc1 (-1.35 @ 25 depth) makes a fight of it.> I dont see why Qc1 should change much. After 23.Qc1 black can answer Qd4 as well.

Aug-24-15  Moonwalker: I really needed this today! After a very challenging day at work it felt great to instantly spot the winning combination! Monday: You are good for something after all!
Aug-24-15  morfishine: <27...Qg1+> Nice deflection forces mate: 28.Nxg1 Rf1#


Premium Chessgames Member
  agb2002: Black is one pawn down.

White threatens 28.Nxd4.

The white knight blocks 27... Rf1#. Hence, 27... Qg1+ 28.Nxg1 Rf1#.

Much slower is 27... Rxf3 28.exf3 (28.Bxf3 Qg1#) 28... Qg1+ 29.Ke2 Qxb1

A) 30.Qg5 Qf1+ 31.Kd2 Qf2+ 32.Kc1 (31.Kd1 Ne3+ wins the queen or it's mate next) 31... Qe1+ 32.Kc2 Ne3+ wins the queen or delivers mate next.

B) 30.Qd1 Qxb2+ 31.Qd2 (31.Ke1 Qxh2 etc.) 31... Nc3+ 32.Ke3 Qxd2+ 33.Kxd2 Nxa2 - + [N+P] and White cannot trap the black bishop.

Aug-24-15  Caissas Clown: Simple,though it took me a few seconds more than on other Mondays,as the solution involves a backward knight move,which is notoriously easy to overlook. In most instructive examples,the BKM is missed by a blundering attacker. Not the case here,but still easy to miss. Well,easy for =me= to miss !
Premium Chessgames Member
  Bubo bubo: The white knight is overloaded: 27...Qg1+ 28.Nxg1 Rf1#
Aug-24-15  Nick46: Have a Pint o'Madeira, m'dear.
Premium Chessgames Member
  whiteshark: The perfect Wagnerite!
Aug-24-15  SpanishSolid: Morphy style.
Premium Chessgames Member
  Once: When I first saw the puzzle diagram it looked like one of those games where the loser forgets to castle. He then gets punished as his king is mated on its starting square. And we can all mutter grimly into our dwarven ale about the perils of not hiding away in your mountain castle.

But no, this is not one of those stories. White did castle early and well, and the decided to ... ahem ... uncastle. After finding the sanctuary of g1, he then ambles back over to e1.

The time wasting with Qa4 didn't help. I can't help feeling that white should have castled again with a Kg1 and Rf1 at some point in proceedings.

Aug-24-15  patzer2: <Saturn 2>< I don't see why Qc1 should change much. After 23.Qc1 black can answer Qd4 as well.> While 23. Qd2? Qd4! is clearly decisive, 23. Qc1 Qd4 leaves the outcome in doubt.

Deep Fritz 14 analyzes 23. Qc1 Qd4

[ Here Fritz prefers 23... Rf8+ 24. Kg1 Qd4+ 25. Kh1 Ne3 26. Nxg5 Nxg2 27. Nxe6 (27. Kxg2?? Rf2+! 28. Kh1 Rxe2 ) 27... Qd5 28. e4 Qxd3 29. Kxg2 (29. Nxf8?? Qxe4!! 30. Kg1 Ne3 31. Qd2 Qxb1+ 32. Kf2 Ng4+ 33. Kf3 Qf5+ 34. Kg2 Kxf8 ) 29... Qxe4+ 30. Kg1 Qxe6 31. b3 (-1.24 @ 24 depth)]

24. Nxg5 Ne3+ 25. Kg1 Nxg2+ 26. Kxg2 Bxa2 27. Ra1 Rf8 28. Nf3 Bd5 29. Qd2 h6 (-0.67 @ 23 depth).

P.S.: Of course better is to avoid both 22. Qd2? Qd4 and 23. Qc1 Rf8+ and, instead, make the improvement a move earlier with 22. Kg1 =.

Aug-24-15  Mating Net: That's what happens when you forget to move your e pawn after 27 moves.
Aug-24-15  saturn2: Thanks patzer2 for your answer. However the analysis is beyond my scope. I dont get why after 23 Qd2 ...Qd4 is the winning move and on the other hand after 23 Qc1 ...Qd4 is even minor to Rf8.
Aug-24-15  JohnBoy: I am pleased that I paused after finding 27...Rf3 28.ef3 Qg1+ 29.Ke2 Qh2+ 30.Kd1 Qh1+ 31.Kc2 Qf3 to look for something better. A personal bad habit is to find a decent line and settle for it w/o scanning for improvement. Here, another few moments and I saw the game line.
Aug-24-15  TheTamale: Not the toughest problem to see, but a beautiful ending nonetheless. I don't think I've seen its likes before.
Premium Chessgames Member
  kevin86: The ending is similar to Morphy's Opera Box game. Sac queen open rank mate with rook.
Aug-24-15 oh....That's a _bishop_ in the corner. Well...
Aug-24-15  Nick46: I could also offer you a Martini.
Aug-24-15  zb2cr: The flashiest way to end this game is also the simplest. 27. ... Qg1+; 28. Nxg1(forced), Rf1#.

27. ... Rxf3 also removes the Knight guarding g1, but after 28. exf3, Qg1+; 29. Ke2. Qxb1 Black is a piece up but the win is not immediate.

Aug-24-15  waustad: This is a bit more subtle than the usual Monday Queen sac.
Aug-24-15  Nullifidian: 27... ♕g1+ 28. ♘xg1 ♖f1#
Aug-25-15  MindCtrol9: This mate with Rook and Bishop,it makes me remember one of the Murphy's games.Everybody knows that game I'm talking about.
Aug-25-15  MindCtrol9: You see?This player with White pieces was 2050 and something and had Black made a mess.Everytime I think that to be Champion of the World you have to be an amazing player.For that reason,we should not blame an ex-champion because he got beaten by another great player.For example:Anand lost to Carlsen,but this does not mean that Anand is a bad player.Like I said,to become Champion of the World you have to beat a bunch of extremely talented players,and that is not an easy task.
Aug-25-15  notyetagm: P Pinto vs W Madeira, 1982

27 ... ?

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27 ... ♕d4-g1+! 0-1

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28 ♘f3x♕g1 ♖f8-f1#

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A simple example of a <PIN AGAINST A SQUARE>: the White f3-knight cannot both <PROTECT> the g1-sq *and* <INTERPOSE/SHIELD> the f1-square at the same time.

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