Problem Display
PID: 118563 (8/7b/8/8/8/Q1p5/p7/Nk2K3 w - - 0 1)

Shakhnazaryan, Albert Serapionovic

Flag Rodini, 1990

8/7b/8/8/8/Q1p5/p7/Nk2K3

#3

3 + 4


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Kxa1
      • 2.Qc1+
        • 2...Bb1
          • 3.Qxc3#
    • 1...c2
      • 2.Kd2
        • threat
          • 3.Qc1#
        • 2...c1Q+
          • 3.Qxc1#
        • 2...c1B+
          • 3.Qxc1#
        • 2...Kxa1
          • 3.Qc1#
        • 2...c1S
          • 3.Qxc1#
        • 2...c1R
          • 3.Qxc1#
      • 2.Sb3
        • threat
          • 3.Qc1#
        • 2...c1Q+
          • 3.Qxc1#
        • 2...c1R+
          • 3.Qxc1#
        • 2...c1S
          • 3.Qxc1#
        • 2...c1B
          • 3.Qxc1#
        • 2...a1Q
          • 3.Sd2#
          • 3.Qxa1#
        • 2...a1S
          • 3.Sd2#
          • 3.Qxa1#
        • 2...a1B
          • 3.Sd2#
          • 3.Qxa1#
        • 2...a1R
          • 3.Sd2#
          • 3.Qxa1#
  • Tries
    • 1.Qxa2+?
      • 1...Kc1
        • 2.Sb3#
      • 1...Kxa2!
    • 1.Qb3+?
      • 1...Kc1
        • 2.Qxa2
          • threat
            • 3.Sb3#
          • 2...Bc2
            • 3.Qxc2#
          • 2...Bg8
            • 3.Qc2#
      • 1...Kxa1!
  • Keys
    • 1.Kd1!
      • threat
        • 2.Qc1#
      • 1...Bc2+
        • 2.Sxc2
          • threat
            • 3.Qc1#
            • 3.Qb4#
            • 3.Qb3#
          • 2...a1Q
            • 3.Qxa1#
          • 2...a1S
            • 3.Qxa1#
          • 2...a1B
            • 3.Qxa1#
      • 1...c2+
        • 2.Kd2
          • threat
            • 3.Qc1#
          • 2...c1Q+
            • 3.Qxc1#
          • 2...c1B+
            • 3.Qxc1#
          • 2...Kxa1
            • 3.Qc1#
          • 2...c1S
            • 3.Qxc1#
          • 2...c1R
            • 3.Qxc1#
      • 1...Kxa1
        • 2.Kc1
          • threat
            • 3.Qxc3#
          • 2...c2
            • 3.Qb2#
            • 3.Qc3#
        • 2.Qc1+
          • 2...Bb1
            • 3.Qxc3#
        • 2.Qxc3+
          • 2...Kb1
            • 3.Qc1#

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).