Problem Display
PID: 128541 (3Nkbr1/4P3/2Pp2pp/3p4/5N2/8/2Q4K/8 w - - 0 1)

Lyubashevsky, Leonid Abramovic

Stolyarov, Vitaly Nesterovich

Kalininskaya Pravda, 1986

3Nkbr1/4P3/2Pp2pp/3p4/5N2/8/2Q4K/8

#3

6 + 7


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Sfe6?
      • threat
        • 2.Qxg6+
          • 2...Kxe7
            • 3.Qf7#
          • 2...Rxg6
            • 3.exf8Q#
        • 2.Qf2
          • threat
            • 3.Qf7#
          • 2...Kxe7
            • 3.Qf7#
          • 2...Rg7
            • 3.Qxf8#
            • 3.exf8Q#
      • 1...Kxe7
        • 2.Qf2
          • threat
            • 3.Qf7#
          • 2...Ke8
            • 3.Qf7#
          • 2...Rg7
            • 3.Qxf8#
      • 1...Rh8
        • 2.Qxg6+
          • 2...Kxe7
            • 3.Qf7#
        • 2.Qf2
          • threat
            • 3.Qf7#
          • 2...Kxe7
            • 3.Qf7#
          • 2...Rh7
            • 3.Qxf8#
            • 3.exf8Q#
      • 1...Bg7
        • 2.Qxg6+
          • 2...Kxe7
            • 3.Qf7#
      • 1...g5
        • 2.Qf5
          • threat
            • 3.Qf7#
          • 2...Kxe7
            • 3.Qf7#
          • 2...Rg7
            • 3.Qxf8#
            • 3.exf8Q#
        • 2.Qg6+
          • 2...Kxe7
            • 3.Qf7#
          • 2...Rxg6
            • 3.exf8Q#
        • 2.Qf2
          • threat
            • 3.Qf7#
          • 2...Kxe7
            • 3.Qf7#
          • 2...Rg7
            • 3.Qxf8#
            • 3.exf8Q#
      • 1...Bxe7!
    • 1.Qf5?
      • threat
        • 2.Qd7#
        • 2.Qf7#
      • 1...Kxe7
        • 2.Sxd5+
          • 2...Kxd8
            • 3.Qd7#
          • 2...Ke8
            • 3.Qd7#
        • 2.Qe6+
          • 2...Kxd8
            • 3.Qd7#
        • 2.Qf7+
          • 2...Kxd8
            • 3.Qd7#
      • 1...Bxe7
        • 2.Qd7+
          • 2...Kf8
            • 3.Sfe6#
      • 1...gxf5!
    • 1.Qxg6+?
      • 1...Kxe7
        • 2.Qf7+
          • 2...Kxd8
            • 3.Qd7#
        • 2.Qe6+
          • 2...Kxd8
            • 3.Qd7#
      • 1...Rxg6!
  • Keys
    • 1.Qa4!
      • threat
        • 2.c7+
          • 2...Kxe7
            • 3.Sxd5#
      • 1...Kxe7
        • 2.Sxd5+
          • 2...Kxd8
            • 3.Qa8#
          • 2...Ke8
            • 3.c7#
      • 1...Bxe7
        • 2.c7+
          • 2...Kf8
            • 3.Sfe6#
      • 1...Bg7
        • 2.Qa7
          • threat
            • 3.Qd7#
      • 1...d4
        • 2.c7+
          • 2...Kxe7
            • 3.Sd5#

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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).