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Enno Heyken vs Shreyas Dave
"Enno Dominate" (game of the day Nov-18-2014)
IHEM (2001), Hamburg GER, rd 2, Jun-03
Semi-Slav Defense: Main Lines (D45)  ·  1-0

8
7
6
5
4
3
2
a
1
b
c
d
e
f
g
h
White to move.
ANALYSIS [x]
1-0

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

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Kibitzer's Corner
Nov-18-14  ColeTrane: interesting choice for GOTD ....
Nov-18-14  morfishine: This game is nothing if not exciting
Nov-18-14
Premium Chessgames Member
  Bubo bubo: Interesting game! But what's wrong with 30.Qxa8? It seems to me as if Black has no decisive threat at the moment, while White can soon clear a8, promote his pawn and attack the black king from behind. What do I miss here?
Nov-18-14  morfishine: <Bubo bubo> Good point, I was wondering that too when I first looked over the game; and once I ran it thru a simple PGN viewer, I am really wondering...
Nov-18-14  goodevans: <Bubo bubo: ... what's wrong with 30.Qxa8? It seems to me as if Black has no decisive threat at the moment...>

Another question is why didn't black defend with 29...Rf8? Giving up the exchange has got to be better than relinquishing a whole rook.

From black's perspective, 29...Rf8 would have been tantamount to resigning since his attack is now gone. On the other hand giving up the rook at least keeps some threats that may come to fruition.

Back to the original question: Maybe white also "believed" in black's attacking chances. Ironically, by avoiding the obvious 30.Qxa8 white actually gave black time to get that attack going!

Nov-18-14  Castleinthesky: <Bubo bubo> Good points about the poor defense on Black's part. Another head scratcher (maybe less so) is move 23..Qh6. My thought would have been to do gxf3 and open the file with a stronger kingside attack.
Nov-18-14  kevin86: I don't know what happened here! Even an underpromotion couldn't save black.
Nov-18-14  AvidChessMan: My thoughts about why not 30.Qxa8? is that it keeps the white queen on the diagonal which includes the e5 square. This square seems important to white, as revealed later by 35.Qe5. I guess 30.Qxa8? whould be like taking the "eye off the prize".
Nov-18-14  Andrew Chapman: What happens after 31..Nf6, with threat Ba3?
Nov-18-14  kyg16: Well AvidChessMan your thoughts are "OK" in the sense that I believe those were probably the same thoughts that went through Heyken's head too... Nevertheless it is obviously shocking to see white not take Qxa8 so I decided to get high with a little help from my silicon friends.

30. Qxa8 best move by far: +15.8 evaluation

I believe white risked too much in a won position. This is supported by the fact that after 33. Kh2 position throws an eval. of only +1.5

Nov-18-14  kyg16: But definitely you cannot call it 30. Qxa8?
Nov-18-14  tatarch: Lots of head scratching as I went through this one. Glad I'm not the only one.

<Andrew Chapman: What happens after 31..Nf6, with threat Ba3?> Good question.

Nov-18-14
Premium Chessgames Member
  Bubo bubo: <kyg16: But definitely you cannot call it 30. Qxa8?>

I see, the question mark was ambigous in my post. Perhaps one should not ask a question ending with a move. <What about 30.Qxa8 - is there something wrong with this move?> might have been clearer.

Nov-18-14  kyg16: Bubo bubo I understood yours was a question. I said it due to AvidChessMan's post.

Kind regards

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