Problem Display
PID: 33299 (8/8/8/8/N4p2/N1PQ4/2P5/nbk2K2 w - - 0 1)

Kasparyan, Genrikh M

4th HM., Shakhmatny Listok, 1930

8/8/8/8/N4p2/N1PQ4/2P5/nbk2K2

#3

6 + 4


SOLUTION


  • SOUND
  • Sets
    • 1...Ba2
      • 2.Ke1
        • threat
          • 3.Qd1#
          • 3.Qd2#
        • 2...Sxc2+
          • 3.Qxc2#
    • 1...Sb3
      • 2.Ke1
        • threat
          • 3.Qd1#
        • 2...Bxc2
          • 3.Qxc2#
        • 2...Sd2
          • 3.Qxd2#
    • 1...f3
      • 2.Qe3+
        • 2...Kd1
          • 3.Sb2#
          • 3.Qe1#
  • Tries
    • 1.Ke1?
      • threat
        • 2.Qd1#
        • 2.Qd2#
      • 1...Bxc2
        • 2.Qd2#
      • 1...Sb3
        • 2.Qd1#
      • 1...Sxc2+!
    • 1.Ke2?
      • threat
        • 2.Qd1#
        • 2.Qd2#
      • 1...Bxc2
        • 2.Qd2#
      • 1...Sb3
        • 2.Qd1#
      • 1...f3+!
    • 1.Kf2?
      • threat
        • 2.Qf1+
          • 2...Kd2
            • 3.Qe1#
      • 1...Sxc2
        • 2.Qf1+
          • 2...Kd2
            • 3.Sxb1#
            • 3.Sc4#
          • 2...Se1
            • 3.Qxe1#
      • 1...Bxc2!
    • 1.Qe2?
      • threat
        • 2.Qe1#
      • 1...Bxc2
        • 2.Ke1
          • threat
            • 3.Qd2#
          • 2...Sb3
            • 3.Qxc2#
      • 1...Sxc2!
    • 1.Qe4?
      • threat
        • 2.Qe1#
      • 1...Bxc2
        • 2.Qxf4+
          • 2...Kd1
            • 3.Sb2#
      • 1...Sxc2!
    • 1.Qe3+?
      • 1...Kd1
        • 2.Sb2#
        • 2.Qe1#
      • 1...fxe3!
  • Keys
    • 1.Kg1!
      • 1...Bxc2
        • 2.Qf1+
          • 2...Kd2
            • 3.Sc4#
          • 2...Bd1
            • 3.Qxf4#
      • 1...Sxc2
        • 2.Qf1+
          • 2...Kd2
            • 3.Sc4#
          • 2...Se1
            • 3.Qxe1#
      • 1...Ba2
        • 2.Qe2
          • threat
            • 3.Qe1#
          • 2...Sxc2
            • 3.Qxc2#
      • 1...Sb3
        • 2.Qe2
          • threat
            • 3.Qe1#
          • 2...Bxc2
            • 3.Qxc2#
      • 1...f3
        • 2.Qe3+
          • 2...Kd1
            • 3.Sb2#

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).