Problem Display
PID: 142244 (2nb4/2n5/p2p4/Q7/2kN4/3N4/3PP3/7K w - - 0 1)

Kirillov, Valery Afanasievich

Selivanov, Andrei Vladimirovich

Udartsev, Valentin Filipovich

Phenix, 1989

2nb4/2n5/p2p4/Q7/2kN4/3N4/3PP3/7K

#3

6 + 6


SOLUTION


  • SOUND
  • Sets
    • 1...d5
      • 2.Qc3#
      • 2.Qb4#
      • 2.Qa4#
      • 2.Qc5#
  • Tries
    • 1.e3?
      • threat
        • 2.Sb2#
      • 1...Sb5
        • 2.Qa2+
          • 2...Kxd3
            • 3.Qc2#
      • 1...Kxd3!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qa4+
          • 2...Kd5
            • 3.Sef4#
      • 1...Kb3
        • 2.Qc3+
          • 2...Ka2
            • 3.Qb2#
          • 2...Ka4
            • 3.Qb4#
      • 1...Sxe6
        • 2.Qa4+
          • 2...Kd5
            • 3.e4#
      • 1...Bh4
        • 2.Qa4+
          • 2...Kd5
            • 3.Sef4#
            • 3.Sxc7#
      • 1...Bg5
        • 2.Qa4+
          • 2...Kd5
            • 3.Sxc7#
      • 1...Bf6
        • 2.Qa4+
          • 2...Kd5
            • 3.Sef4#
            • 3.Sxc7#
      • 1...Be7
        • 2.Qa4+
          • 2...Kd5
            • 3.Sef4#
            • 3.Sxc7#
      • 1...Sd5
        • 2.Qxa6+
          • 2...Kb3
            • 3.Sd4#
      • 1...Sb6
        • 2.Qa2+
          • 2...Kb5
            • 3.Sd4#

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).