Attacking chess tactic

6 comments

• Reply

  

  Eddie Cabe says:

  January 13, 2015 at 6:47 am

  RH7+!

• Reply

  

  chandra kollipara says:

  January 13, 2015 at 12:57 pm

  Ncg5+

• Reply

  

  pht says:

  January 13, 2015 at 3:39 pm

  Here I looked at 2 possible approaches, both involving a preliminary R sack:

  A)
  1. Nxg5+ Nxd7 (what else?)
  2. Rh7+ Kg8 (only)
  3. Bd5+ Rf7 (only, giving back rook)
  4. Bxf7+ Kf8 (only)
  5. Ne6+ Ke7 (only)
  and it’s pretty equal, hard to find anything decisive here.

  B)
  1. Rh7+ Kxh7 (what else?)
  2. Nxg5++ Kh8 (Kg8 Bd5+ or Kh6?? Rh7+!! Kxg5 (only) Rh5#)
  3. Rh7+ Kg8 (only)
  4. Bd5+ Rf7 (only, giving back rook)
  5. Bxf7+ Kf8 (only)
  6. Ne6+!! Nxe6 (enforced here)
  7. fxe6
  and I tend to prefer this line because of the now excellently placed e6 pawn.
  Though still complicated play I think white wins this.

  2. … Kg8 (only deviation)
  3. Bd5+ Rf7 (only, giving back rook. Kh8?? Rh7#)
  4. Bxf7+ Kf8 (only)
  5. Ne6+!! Nxe6 (again enforced. Ke8? Nxc5 protects rook and is up with a knight)
  6. fxe6
  looks even better for white than previous line.

  It’s very fine neuances here that decide what line is better, but so far I conclude with B) 1. Rh7+.

• Reply

  

  fajac says:

  January 13, 2015 at 4:43 pm

  @pht:
  Your variation B) is the right beginning, but you oversaw the mate at the end:
  1. Nxg5+ Nxe7
  1. … Kg8 2.Bd5+ Rf7 3.Bxf7+ and mate soon
  2. Rh7+ Kg8
  3. Bd5+ Rf7
  4. Bxf7+ Kf8
  And now not 5.Ne6+ but
  5. Rh8+! Ke7
  5. … Kg7 6.Rg8+ Kh6 7.Rg6#
  6. Re8+ Kd6
  7. Re6+ Kc5
  8. Ne4#

• Reply

  

  CraigB says:

  January 13, 2015 at 7:05 pm

  There’s a little twist that people are missing.
  1. N:g5+ N:d7
  2. Rh7+ Kg8
  3. Bd5+ Rf7
  4. B:f7+ Kf8

  And now White has a mate in 4 (probably unless you are a 2200+ you need to set up a board like I did).

  5. Rh8+ Ke7
  6. Re8+ Kd6
  7. Re6+ Kc5
  8. Ne4#

  It just seemed like there was something missing with just creating a passed e-pawn and allowing black to foll pawns at the White K. I doubted that Susan would have posted this unless something more decisive was available.

• Reply

  

  Yancey Ward says:

  January 13, 2015 at 7:06 pm

  A classic it is- a mate in 8 or less. This was first posted here in July of 2010. Below is the analysis I posted at that time for the correct line- a line pht has nearly discovered above, except that he missed 5.Rh8+:

  1. Ng5!! Nd7 (other moves below)
  2. Rh7 Kg8
  3. Bd5 Rf7
  4. Bf7 Kf8
  5. Rh8! Ke7 (Kg7 6.Rg8 Kh6 7.Rg6#)
  6. Re8 Kd6
  7. Re6 Kc5
  8. Ne4#

  1. Ng5 Rf7
  2. Rh7! Kf8 (Kg8 3.Rd8 Rf8 4.Bd5)
  3. Rhf7 Ke8 (Kg8 4.Rd8#)
  4. Rfe7 Kf8
  5. Nh7 Kg8
  6. Re8#

  Or

  1. Ng5 Kg8
  2. Bd5 Ne6 (Rf7 is shorter mate)
  3. Be6 Rf7
  4. Rd8 Kg7
  5. Rh7#

  For those interested, I seem to have done a lot of analysis of 1.Rh7, unsuccessfully, however.