5 Responses to Wednesday Quiz

  1. Costello says:
    September 4, 2013 at 08:48

    it`s Bg7 !??!??! (…Bxg7 2.fxg7 Rxg7 3.Nf6+ ) + –

  2. Yuichi Sato says:
    September 4, 2013 at 20:48

    (a) 1.Bg7 Qh7 2.Qxh7+ Kxh7 3.Ng5+ Kg6 or Kg8 4.Nxf7 Kxf7 ＋－
    (b) 1.Bg7 Bxg7 2.fxg7 ( threatening checkmate with 3.Qh8# )
    [b1] 2. …Qxg7 3.Rxf7 Qxf7 ( or 3. …Qg6 4.Rxd7 ) 4.Rxf7 Kxf7 5.Qh7+ Kf8 6.Qxd7 ＋－
    [b2] 2. …Rxg7 3.Nf6+ Kf7 ( or 3. …Kf8 4.Nxd7++ ) 4.Nxd7+ Kg8 5.Nf6+ Kf7 or Kf8 6.Nxe8 Kxe8 7.Rf8+ Kd7 8.Qd8# ＋－
    [b3] 2. …Kxg7 3.Rxf7+ Qxf7 ( or 3. …Kg8 4.Rxd7 ) 4.Rxf7+ Kxf7 5.Qh7+ Kf8 6.Qxd7 ＋－
    (c) 1.Bg7 Rxg7 2.fxg7
    [c1] 2. …Qxg7 3.Nf6+ Kf7 4.Nxd7+ Kg8 ( or 4. …Kg6 5.Rf6+ Qxf6 6.Rxf6+ Bxf6 7.Qxf6+ Kh7 [ or 7. …Kh5 8.Qf7+ Kg5 or Kh6 9.Qxe8 ] 8.Qf7+ Kh6 9.Qxe8 ) 5.Nf6+ Kf7 or Kf8 6.Nxe8 Kxe8 ＋－
    [c2] 2. …Kxg7 3.Rf6 Qxf6 ( 3. …Qh7 4.Qg5+ Qg6 5.Qxg6# ) 4.Qxf6+ Kh7 ( 4. …Kg8?? 5.Qf7# ) 5.Ng5+ Kg8 6.Qf7# ＋－
    [c3] 2. …Bxg7 3.Nf6+ Bxf6 4.Rxf6 Qg7 ( 4. …Qh7 5.Qg5+ Kh8 6.Rh6 Qxh6 7.Qxh6+ Kg8 8.Qg6+ Kh8 9.Rf7 Rg8 10.Qh7# ) 5.Qh5 Qh7 6.Rg6+ Kh8 7.Rh6 Qxh6 8.Qxh6+ Kg8 9.Qg6+ Kh8 10.Rf7 Rg8 11.Qh7#

  3. Yuichi Sato says:
    September 4, 2013 at 20:58

    Sorry, I forgot to delete the ＋－ marks of the [b2] and [c2] variation.

  4. yelenadembo says:
    September 5, 2013 at 08:03

    Very good!

  5. yelenadembo says:
    September 5, 2013 at 08:03

    Well done!

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