Problem Display
PID: 15013 (3Q1Kb1/1R3p2/2p2Npp/p1p3b1/2kp4/1R1p3n/6nr/5N2 w - - 0 1)

Whyatt, William Albert

2nd Prize, The Problemist, 1957

3Q1Kb1/1R3p2/2p2Npp/p1p3b1/2kp4/1R1p3n/6nr/5N2

#3

6 + 14


SOLUTION


  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qxa5
        • threat
          • 3.Qa4#
          • 3.Qa6#
      • 2.Qb6
        • threat
          • 3.Qa6#
      • 2.Qa8
        • threat
          • 3.Qa6#
    • 1...Bd2
      • 2.Sxd2#
    • 1...Be3
      • 2.Qxa5
        • threat
          • 3.Qa4#
          • 3.Qa6#
      • 2.Qb6
        • threat
          • 3.Qa6#
      • 2.Qa8
        • threat
          • 3.Qa6#
    • 1...Bh4
      • 2.Sd2#
    • 1...Bxf6
      • 2.Sd2#
    • 1...Sf4
      • 2.Sd2#
  • Tries
    • 1.Se3+?
      • 1...Bxe3
        • 2.Qxa5
          • threat
            • 3.Qa4#
            • 3.Qa6#
        • 2.Qb6
          • threat
            • 3.Qa6#
        • 2.Qa8
          • threat
            • 3.Qa6#
      • 1...Sxe3!
    • 1.Qxa5?
      • threat
        • 2.Qa4#
        • 2.Qa6#
      • 1...Bd2
        • 2.Sxd2#
        • 2.Qa6#
      • 1...Bxf6!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Rc3+
          • 2...Kxc3
            • 3.Qxc5#
          • 2...dxc3
            • 3.Qe4#
      • 1...Bxf6
        • 2.Sd2+
          • 2...Kd5
            • 3.Rd7#
      • 1...Be3
        • 2.Sd7
          • threat
            • 3.Qxc5#
          • 2...Kd5
            • 3.Sb6#
      • 1...Se3
        • 2.Qe4
          • threat
            • 3.Qxd3#
          • 2...Bxf6
            • 3.Sxe3#
          • 2...Rd2
            • 3.Sxd2#
          • 2...Sf2
            • 3.Sd2#
          • 2...Sf4
            • 3.Sxe3#
          • 2...d2
            • 3.Qd3#
      • 1...Sf2
        • 2.Kxg8
          • threat
            • 3.Qxf7#
          • 2...Se3
            • 3.Sd2#
          • 2...Sf4
            • 3.Sd2#
      • 1...d2
        • 2.Qe2+
          • 2...d3
            • 3.Qxd3#
            • 3.Qe4#

FEATURES


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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).