Problem Display
PID: 134307 (bQ3K2/8/4p2N/1p6/1p2k3/3n4/1B3P2/r4RN1 w - - 0 1)

Blake, Percy Francis

Cahiers de l'Echiquier francais, 1934

bQ3K2/8/4p2N/1p6/1p2k3/3n4/1B3P2/r4RN1

#3

7 + 7


56 The Problemist 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Rb1
      • 2.Qxa8+
        • 2...Kf4
          • 3.Sh3#
    • 1...Rd1
      • 2.Qxa8+
        • 2...Kf4
          • 3.Sh3#
    • 1...Re1
      • 2.Qxa8+
        • 2...Kf4
          • 3.Sh3#
    • 1...Rxf1
      • 2.Qxa8+
        • 2...Kf4
          • 3.Sh3#
    • 1...Bb7
      • 2.Qxb7+
        • 2...Kf4
          • 3.Sh3#
    • 1...Se1
      • 2.Qe5+
        • 2...Kd3
          • 3.Qe2#
    • 1...Sxf2
      • 2.Qe5+
        • 2...Kd3
          • 3.Qe2#
    • 1...Sc5
      • 2.Qe5+
        • 2...Kd3
          • 3.Qe2#
    • 1...Se5
      • 2.Qxe5+
        • 2...Kd3
          • 3.Qe2#
  • Tries
    • 1.Re1+?
      • 1...Rxe1
        • 2.Qxa8+
          • 2...Kf4
            • 3.Sh3#
      • 1...Sxe1
        • 2.Qe5+
          • 2...Kd3
            • 3.Qe2#
      • 1...Kd5!
    • 1.Qb7+?
      • 1...Kf4
        • 2.Sh3#
      • 1...Bxb7!
    • 1.Qxa8+?
      • 1...Kf4
        • 2.Sh3#
      • 1...Rxa8+!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Qe5+
          • 2...Sxe5
            • 3.Rd4#
      • 1...Kd5
        • 2.Qxb5+
          • 2...Ke4
            • 3.Qc4#
          • 2...Kd6
            • 3.Be5#
      • 1...Rxd1
        • 2.Qxa8+
          • 2...Kf4
            • 3.Sh3#
      • 1...Sxb2
        • 2.f3+
          • 2...Ke3
            • 3.Sg4#
      • 1...e5
        • 2.Qxe5+
          • 2...Sxe5
            • 3.Rd4#

FEATURES


NOT CLASSIFIED


Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).