Problem Display
PID: 271983 (5b2/3bn1p1/2p2pN1/2Q5/3Nk3/8/3K2P1/8 w - - 0 1)

Morra, Juan Carlos

The Problemist, 1957

5b2/3bn1p1/2p2pN1/2Q5/3Nk3/8/3K2P1/8

#3

5 + 7


SOLUTION


  • COOKED
  • Sets
    • 1...f5
      • 2.Qe5#
  • Tries
    • 1.Se2?
      • threat
        • 2.Sc3#
        • 2.Sg3#
      • 1...Sd5
        • 2.Sg3#
        • 2.Qc2#
      • 1...Sf5
        • 2.Sc3#
      • 1...Sxg6!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sg5+
          • 2...fxg5
            • 3.Qe5#
        • 2.Qc4+
          • 2...Kf5
            • 3.Sgh4#
      • 1...Sxg6
        • 2.Qc4+
          • 2...Kf5
            • 3.g4#
      • 1...Be6
        • 2.Sg5+
          • 2...fxg5
            • 3.Qe5#
        • 2.Qd4+
          • 2...Kf5
            • 3.Sgh4#
      • 1...Sf5
        • 2.Sg5+
          • 2...fxg5
            • 3.Qe5#
    • 1.Qc4!
      • threat
        • 2.Sf3+
          • 2...Kf5
            • 3.Sgh4#
      • 1...Sxg6
        • 2.Sf3+
          • 2...Kf5
            • 3.g4#
      • 1...Be6
        • 2.Qd3+
          • 2...Kd5
            • 3.Sb3#
      • 1...Sf5
        • 2.Se2+
          • 2...Sd4
            • 3.Sg3#

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).