7 Responses to Saturday Quiz

  1. mdchess says:
    July 19, 2014 at 06:43

    1. Ng5 Rxf4 2. Qh7+ Kf8 3. Nxe6+ Ke8 4. Nxf4 +-
    1. Ng5 Bg7 2. Be5 wins

  2. bumpaguv says:
    July 19, 2014 at 15:02

    1. Ng5

    1…Bg7 2. Be5+-

    1…Bxf2+ 2. Kh1 Rxf4 3. Qxc8+ Rf8 4. Qxe6+ Kg7 [4…Kh8 5. Qd7+-] 5. Qe7+ Rf7 6. Qxf7++-

    1…Rxf4 2. Qh7+ Kf8 3. Nxe6+ Ke8 4. Nxf4+-

  3. Yuichi Sato says:
    July 19, 2014 at 21:17

    (a) 1.Ng5 ( threatening checkmate with 2.Qh7# ) Rxf4 2.Qxc8+
    (a1) 2. …Kg7 3.Nxe6+ Kh6 ( 3. …Kf6 4.Nxf4 ± , 3. …Kf7 4.Nxf4 ± , or 3. …Kh7 4.Nxf4 ± ) 4.Nxf4 ± ( e.g. , 4. …Qxc4 5.Qh3+ Kg5 6.Qg3+ Kf6 7.Qxg6+ Ke7 8.Re1+ and White wins. )
    (a2) 2. …Rf8 3.Qxe6+
    (a2) ① 3. …Kh8 4.Qh3+ Kg7 5.Ne6+ Kg8 6.Nxf8 Kxf8 ±
    (a2) ➁ 3. …Kg7 4.Qe7+ Kh6 ( 4. …Kg8?? 5.Qh7# ) 5.Qxf8+ Bg7 ( 5. …Kxg5?? 6.h4+ Kh5 [ or 6. …Kxh4 7.Qf4+ Kh5 8.Bf3# ] 7.Bf3+ Kxh4 8.Qf4+ Kh3 9.Qg3# or Bg2# ) 6.Qf4 ±
    (b) 1.Ng5 Bxf2+ 2.Rxf2 Qa1+ 3.Rf1 Qd4+ ( 3. …Rxf4?? 4.Qh7+ Kf8 5.Rxa1 ± ) 4.Kh1
    (b1) 4. …Qg7 5.Qxg7+ Kxg7 6.Nxe6+ Kh7 7.Nxf8 Rxf8 ±
    (b2) 4. …Rxf4?? 5.Qh7+ Kf8 6.Rxf4+ Qxf4 7.Nxe6+ Ke8 8.Nxf4 ±
    (b3) 4. …Qh8?? 5.Be5 Rb8 6.Rxf8+ Rxf8 ( 6. …Kxf8 7.Qf7# ) 7.Bxh8 Rf1+ ( 7. …Kxh8 8.Qh7# ) 8.Bxf1 Kxh8 9.Qh7#
    (c) 1.Ng5 Bg7 2.Be5 Rf6 ( 2. …Qxf2+ 3.Rxf2 Rc7 4.Qxc7 Rf7 5.Qxf7+ Kh8 6.Qxg7# or 2. …Bxe5?? 3.Qh7# ) 3.Bxf6 Bxf6 4.Qh7+ Kf8 5.Qf7#

  4. Yuichi Sato says:
    July 19, 2014 at 22:53

    P.S. , I should have written the (b) parenthesized sub-variation as ( 3. …Rxf4 4.Qxc8+ Kg7 5.Rxa1 ± ) , although I didn’t have to write it.

  5. yelenadembo says:
    July 20, 2014 at 07:30

    Well done

  6. yelenadembo says:
    July 20, 2014 at 07:31

    Very good

  7. yelenadembo says:
    July 20, 2014 at 07:31

    Well done

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