Problem Display
PID: 254209 (2Q3K1/4pNpp/4pk1r/4p2P/4P3/8/8/8 w - - 0 1)

Heyl, Peter

Schach, 1962

2Q3K1/4pNpp/4pk1r/4p2P/4P3/8/8/8

#3

5 + 7


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Rxh5
      • 2.Qf8
        • threat
          • 3.Qxg7#
        • 2...Kg6
          • 3.Qxg7#
        • 2...Rg5
          • 3.Sh8#
        • 2...g5
          • 3.Sh8#
          • 3.Qg7#
        • 2...g6
          • 3.Qg7#
    • 1...g6
      • 2.Qf8
        • threat
          • 3.Qg7#
  • Tries
    • 1.Qc1?
      • threat
        • 2.Qg5#
        • 2.Qf1#
      • 1...g5
        • 2.Qxg5#
        • 2.Qf1#
      • 1...Rg6
        • 2.Qf1#
      • 1...Rxh5!
    • 1.Qd8?
      • 1...Rxh5
        • 2.Qf8
          • threat
            • 3.Qxg7#
          • 2...Kg6
            • 3.Qxg7#
          • 2...Rg5
            • 3.Sh8#
          • 2...g5
            • 3.Sh8#
            • 3.Qg7#
          • 2...g6
            • 3.Qg7#
      • 1...Rg6
        • 2.Kf8
          • threat
            • 3.Qxe7#
      • 1...g6
        • 2.Qf8
          • threat
            • 3.Qg7#
      • 1...g5!
    • 1.Qe8?
      • 1...Rxh5
        • 2.Qf8
          • threat
            • 3.Qxg7#
          • 2...Kg6
            • 3.Qxg7#
          • 2...Rg5
            • 3.Sh8#
          • 2...g5
            • 3.Sh8#
            • 3.Qg7#
          • 2...g6
            • 3.Qg7#
      • 1...Rg6
        • 2.Kf8
          • threat
            • 3.Qxe7#
      • 1...g6
        • 2.Qf8
          • threat
            • 3.Qg7#
      • 1...g5!
    • 1.Qf8?
      • threat
        • 2.Qxg7#
      • 1...g5
        • 2.Sd6#
        • 2.Sxh6#
        • 2.Sd8#
        • 2.Sh8#
        • 2.Qxh6#
        • 2.Qg7#
      • 1...g6
        • 2.Qg7#
      • 1...Rg6!
  • Keys
    • 1.Qb8!
      • threat
        • 2.Qxe5#
      • 1...Rxh5
        • 2.Qf8
          • threat
            • 3.Qxg7#
          • 2...Kg6
            • 3.Qxg7#
          • 2...Rg5
            • 3.Sh8#
          • 2...g5
            • 3.Sh8#
            • 3.Qg7#
          • 2...g6
            • 3.Qg7#

This is a version

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).