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Alexander Shabalov vs Jacob Aagaard
Hamburg Open (1999), Hamburg GER
Nimzo-Indian Defense: Normal Variation. Bernstein Defense Except Gligoric System (E53)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Nov-27-06
Premium Chessgames Member
  chancho: Nice combination by Aagaard over Shabalov.
Aug-07-07
Premium Chessgames Member
  chancho: 47.Kh2 d3 (threatening the Queen and checkmate to boot)
Dec-17-07
Premium Chessgames Member
  chancho: How does black win if 45.Rg2?
Dec-17-07  Kangaroo: <<chancho>: How does black win if 45.Rg2?> Consider <45 ... e3> immediately or <45... Rf3> followed by either <46 ... e3> or <46 ... Rh3> - Black will win soon.
Feb-28-14
Premium Chessgames Member
  whiteshark: "During the tournament I was staying in a flat with Coach. Every day we took a twenty minute journey on the subway to the playing hall. Whoever finished first would often go directly home, not waiting for the other to finish.

Before this game I asked Coach for the keys so I would not need to disturb his game when I had lost. The moment I had spoken the words I realised how awful they were. Coach smiled and asked me to sit next to him and pretend I was still sitting in my seat. I did so. He asked me what Jacob needed in order to play well.

I do not remember how the conver­sation continued, but I do remember how strong and confident I felt during the game, and how well deserved it was that I won. If I could play and feel like this in every game I might have held a high level of motivation. As it is, I chose not to. I am a happy amateur and nothing else, although this game will live in my heart for a long time."

-- J. Aagaard, Excelling at Chess, p15, Everyman 2002

Aug-14-19  Cheapo by the Dozen: 45 ... Qxg3+, and White must take because material was previously even.

46 fxg3 Rf1+
47 Kh2 (Kh1 is even worse) e3

Now Black threatens both mate on the move and the win of more or less a whole queen. White can't prevent both at once.

Aug-14-19
Premium Chessgames Member
  An Englishman: Good Evening: Nice foresight to know he needed to play 38...fxe4 and not 38...Bxe4. Still, have a funny feeling that White had a much superior game at some point.
Aug-14-19  goldfarbdj: <Cheapo by the Dozen: Kh1 is even worse> It's so much worse that it's not even legal. I suspect you meant Kg2?
Aug-14-19
Premium Chessgames Member
  agb2002: White threatens mate in three.

Black can open the file and the h1-a8 diagonal with 45... Qxg3+ 46.fxg3 Rf1+:

A) 47.Kg2 e3+ 48.Kh3 (48.Kh2 Rh2#) 48... exd2 49.Bxd2 Rh1+ 50.Kg4 Bf3#.

B) 47.Kh2 e3

B.1) 48.Qxe3 Rh1#.

B.2) 48.Kh3 exd2 49.Bxd2 Rh1+ 50.Kg4 Bf3#.

B.3) 48.Qg2 Bxg2 49.Kxg2 Rxe1 - + [r].

B.4) 48.g4 Rh1+ 49.Kg3 Rf3+ 50.Kg2 Rfh3#.

Aug-14-19  utssb: 45...Qg3+ 46.fg3 Rf1+ 47.Kh2 e3 48.Qg2 R8f2 49.Bf2 Rf2 50.Qf2 ef2 is a way to make fun of White
Aug-14-19  saturn2: White threatens R1g7+ but 45...Qxg3+ 46. fxg3 Rf1+ 47. Kh1(2) e3 is enough for winning
Aug-14-19  Eduardo Leon: This problem was easy enough that I could solve it <twice> in less than three minutes, once incorrectly, and then once correctly.

First the incorrect solution:

<45...e3?>

And white either loses the queen or get mated, right? Okay, no.

<46.♖gxg7+ ♔h8 47.♖h7+ ♔g8 48.♖ag7#>

The problem is that 45...e3 is not forceful enough. Hence the correct solution is

<45...♕xg3+ 46.fxg3 ♖f1+ 47.♔h2 e3>

Now white has no threats of his own. The only way to stop 48...♖h1# is...

<48.♕g2 ♗xg2 49.♔xg2 ♖xe1>

And black has decisive material advantage.

Aug-14-19  stacase: 45...Qxg3+ but then 46...Rf1+ or 46...e3? Well it's usually better to say check so 46...Rf1+ and White tips his King over. Works for me.
Aug-14-19
Premium Chessgames Member
  whiteshark: and here we are again...
Aug-14-19  Hodor: Shabba!
Aug-14-19
Premium Chessgames Member
  dorsnikov: Today's problem was much easier than some Monday or Tuesday problems.
Aug-14-19  TheaN: This position screams <45....Qxg3+>. White's forced to accept this or be quickly mated 46.Kh1 Qh3+ (e3+ works too) 47.Kg1 Rg6+ 48.Qg5 Rxg5# or 46.Kf1 Bc4+ 47.Qe2 (Qd3 Bxd3#) Rxf2+ (Bxe2+ 48.Kxe2 Qd3#) 48.Bxf2 Qxf2#.

However, the same threats ensue with the Black queen off the board: <46.fxg3 Rf1+ 47.Kh2 (Kg2 similar, e3+ comes with tempo) e3 -+> White has no way to protect against both exd2 and Rh1#. In fact, White doesn't even have a lot of time to protect just against Rh1#: 48.Qg2 (g4 Rh1+ 49.Kg3 Rf3+ 50.Kg2 Rfh3# is interesting) Bxg2 49.g4(Kxg2 Rxe1 -+) Rxe1 -+ and the position still collapses.

Aug-14-19  TheaN: 47.Kh2 e3 48.g4 Rh1+ 49.Kg3 Rf3+ 50.Kg2 Rfh3#:


click for larger view

Beautiful I'd say so. I missed the mate, and intended to play 50....Rf2++ 51.Kg3 and now either straight away exd2 or first Rg1+ with exd2... both won sufficiently so I stopped there.

Aug-14-19
Premium Chessgames Member
  gawain: "Too easy for a Wednesday,” I said to myself. Then I understood that it was Black to move.
Aug-14-19
Premium Chessgames Member
  Jimfromprovidence: Just pointing out that after 45... Qxg3+ 46.fxg3, it looks like 46...Rf1+ is the only winning move.

Black cannot play 46...e3 for example because of 47 Qe2.


click for larger view

Aug-14-19
Premium Chessgames Member
  patzer2: Finding the combination 45...Qxg3 46. fxg3 Rf1+ 47. Kh2 f3 -+, which solves today's Wednesday puzzle, wasn't very difficult.

P.S.: So where did White go wrong? White's game took a turn for the worse with 30. Qg4?, allowing 30...Nxg5 ∓ to -+ (-1.25 @ 31 ply, Stockfish 10).

Instead, 30. Re3! f6 31. Nd3 a5 32. Rb6 f5 33. Nf4 Qa4 34. g6 ± (+1.12 @ 33 ply, Stockfish 10) gives White a clear advantage.

Aug-14-19  AlicesKnight: Found the sequence Qxg3+ - Rf1+ - e3 leaving Black a Rook up at least and with mating nets to follow.
Aug-14-19  Everett: 28..b4, sacking a pawn to get the Q back to defend, is a quality find
Aug-14-19
Premium Chessgames Member
  gambitfan: 1) mated-in-12 (30 ply) 47.♔h2 e3 48.♕g2 ♗xg2 49.♔xg2 ♖xe1 50.♖e7 ♖f2+ 51.♔h3 ♖h1+ 52.♔g4 e2 53.♖xe6 e1=♕ 54.♖xe1 ♖xe1 55.c6 ♖e4+ 56.♔h3 g5 57.d5 g4+ 58.♔h4 ♖h2#
Aug-14-19  dumbgai: <gawain: "Too easy for a Wednesday,” I said to myself. Then I understood that it was Black to move.>

LOL me too!

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