Problem Display
PID: 26159 (8/7p/2pb1p2/2p4K/P1P2P1p/2Pkpr2/B1R3Q1/8 w - - 0 1)

Gulyaev, Aleksandr Pavlovich (aka Grin, AP)

1st Prize, Pol, 1978-1979

8/7p/2pb1p2/2p4K/P1P2P1p/2Pkpr2/B1R3Q1/8

#3

8 + 9


2988 Izbrannie Kompozitsi 1985

SOLUTION


  • SOUND
  • Sets
    • 1...e2
      • 2.Qxe2#
    • 1...h6
      • 2.Qg6+
        • 2...f5
          • 3.Qxf5#
  • Tries
    • 1.Qg6+?
      • 1...f5
        • 2.Qxf5#
      • 1...hxg6+!
  • Keys
    • 1.Bb1!
      • threat
        • 2.Rc1+
          • 2...Kxc4
            • 3.Qa2#
            • 3.Qg8#
      • 1...Kxc4
        • 2.Rc1
          • threat
            • 3.Qa2#
            • 3.Qg8#
          • 2...Kb3
            • 3.Qa2#
          • 2...Kd5
            • 3.Qg8#
      • 1...Ke4
        • 2.Rf2+
          • 2...Kxf4
            • 3.Qh2#
      • 1...Rf2
        • 2.Qe4+
          • 2...Kxe4
            • 3.Rxf2#
      • 1...Rg3
        • 2.Rc1+
          • 2...Kxc4
            • 3.Qa2#
        • 2.Qf1+
          • 2...Ke4
            • 3.Rc1#
            • 3.Ra2#
            • 3.Rb2#
            • 3.Rd2#
            • 3.Re2#
            • 3.Rf2#
            • 3.Rg2#
            • 3.Rh2#
          • 2...e2
            • 3.Qxe2#
        • 2.Qe4+
          • 2...Kxe4
            • 3.Rf2#

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).