Unbalanced position tactic

4 comments

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  Anonymous says:

  October 28, 2007 at 12:11 pm

  1…Qc4 looks winning.

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  Jochen says:

  October 28, 2007 at 12:51 pm

  Ano is right 1. -, Qc4 LOOKS winning.
  But I am not quite sure if it IS winning.

  There are two white ways to react.

  2. Rxf2, Qxh4+ 3. Kg1, Rc1+ 4. Rf1, Qd4+ 5. Kh2!, Rxf1 6. Qd8+ (Qa8+) in search of (at least) a perpetual.
  But it seems as if black could evade the draw. White’s main problem is the white king which position gives white no time to play f7! (after Qd8+, Qe7+, Qg7+, f7!).

  The other way looks much stronger.
  2. f7+!, Kxf7? 3. Qa7+
  2. -, Qxf7 should give at least a draw for white playing 3. e6!
  2. -, K… hmpf where shell the king go?
  Kf8 3. Qa3+ (defending c1) 4. Rxf2 is not good for black
  Kg7/h7/h8 look better and probably one of these moves will win.

  I am not quite sure about this 2. f7+ variation I’d guess black wins here, too, but it is a thing of exact calculations (which I don’t feel able to do at the moment).
  It is not so easy as it looks!

  Greetings
  Jochen

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  Anonymous says:

  October 28, 2007 at 3:34 pm

  Ok, Im anon 7:11 am, and i still think black should win without much trouble:

  1…Qc4 2.Rxf2 Qxh4+ 3.Kg1 Rc1+ 4.Rf1 Qd4+ 5.Kh2 Rxf1.

  And Qa8+ is forced here (jochen thought Qd8+ was possible but the queen simply hangs).

  So 6.Qa8+ Kh7 7.Qb7+ Kg6 8.Qg7+ Kf5 9.Qh7+ Kf4 10.Qh6+ Kxe5 11.Qxh5 Kd6! and no more checks.

  Ok let’s examine 2.f7+:

  2…Kg7 3.Rxf2 Qxh4+ 4.Kg1 Rc1+ 5.Rf1 Qd4+ 6.Kh2 Rxf1 7.f8=Q+ Rxf8

  and it’s clear that white is simply lost here.

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  Jochen says:

  October 28, 2007 at 6:42 pm

  You’re right with Qd8 – such blunders happen if I don’t use a board. Thank for correcting.

  Even if black “wins without much trouble” it’s much more work than 1. -, Qc4 and 0:1 like it sounded in your first post.
  I simply missed some analysis of white’s counter chances….

  Greetings
  Jochen