Problem Display
PID: 188736 (1r2k3/4P3/1P1Q2p1/1b1B4/3Kp3/3p3r/8/8 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

Blon, 1911

1r2k3/4P3/1P1Q2p1/1b1B4/3Kp3/3p3r/8/8

#3

5 + 7


6490 yacpdb 2019

SOLUTION


  • SOUND
  • Sets
    • 1...Rxb6
      • 2.Qd8#
    • 1...Rb7
      • 2.Qd8#
    • 1...Rd8
      • 2.Qxd8#
      • 2.exd8Q#
      • 2.exd8R#
  • Tries
    • 1.Qxb8+?
      • 1...Kd7
        • 2.Qd8#
        • 2.e8Q#
      • 1...Kxe7!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Bf7+
          • 2...Kd7
            • 3.Qe6#
      • 1...Kd7
        • 2.Be6+
          • 2...Kc6
            • 3.Bc8#
          • 2...Kd6
            • 3.Bxh3#
            • 3.Bg4#
            • 3.Bf5#
            • 3.Bc8#
          • 2...Ke8
            • 3.Qf7#
            • 3.Qf8#
      • 1...Rxb6
        • 2.Qf8+
          • 2...Kd7
            • 3.Qd8#
      • 1...Rh7
        • 2.Be6
          • threat
            • 3.Qf8#
          • 2...Rd8+
            • 3.exd8Q#
            • 3.exd8R#
          • 2...Rxe7
            • 3.Qh8#
          • 2...Rf7
            • 3.Qxf7#
          • 2...Rh8
            • 3.Qf7#
      • 1...Rb7
        • 2.Bf7+
          • 2...Kd7
            • 3.Qe6#
            • 3.e8Q#
        • 2.Qf8+
          • 2...Kd7
            • 3.Qd8#
            • 3.e8Q#

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).