Problem Display
PID: 195820 (5k2/1Kp2Bp1/3pP3/8/8/8/7Q/8 w - - 0 1)

Tsaplin, Aleksandr Borisovich

StrateGems, 2018

5k2/1Kp2Bp1/3pP3/8/8/8/7Q/8

#3

4 + 4


SOLUTION


  • SOUND
  • Sets
    • 1...c5
      • 2.Qxd6#
    • 1...c6
      • 2.Qxd6#
  • Tries
    • 1.Kxc7?
      • threat
        • 2.Qxd6#
      • 1...g5
        • 2.Qh8+
          • 2...Ke7
            • 3.Qd8#
      • 1...g6
        • 2.Qh8+
          • 2...Ke7
            • 3.Qd8#
      • 1...Ke7!
    • 1.Kc8?
      • threat
        • 2.Kd7
          • threat
            • 3.Qh8#
        • 2.Kd8
          • threat
            • 3.Qh8#
        • 2.Qh8+
          • 2...Ke7
            • 3.Qd8#
      • 1...g5
        • 2.Qh8+
          • 2...Ke7
            • 3.Qd8#
      • 1...g6
        • 2.Qh8+
          • 2...Ke7
            • 3.Qd8#
      • 1...Ke7!
    • 1.Bg6?
      • threat
        • 2.Qh4
          • threat
            • 3.Qd8#
          • 2...Kg8
            • 3.Qd8#
      • 1...Kg8
        • 2.Qh4
          • threat
            • 3.Qd8#
          • 2...Kf8
            • 3.Qd8#
        • 2.e7
          • threat
            • 3.Qh7#
            • 3.e8Q#
            • 3.e8R#
      • 1...Ke7!
    • 1.Qe5?
      • threat
        • 2.e7+
          • 2...Kxf7
            • 3.e8Q#
      • 1...Ke7
        • 2.Qg5+
          • 2...Kf8
            • 3.Qd8#
      • 1...dxe5!
    • 1.Qh4?
      • threat
        • 2.Qd8#
      • 1...g6
        • 2.Qf6
          • threat
            • 3.e7#
      • 1...g5!
  • Keys
    • 1.Qf4!
      • 1...Ke7
        • 2.Qg5+
          • 2...Kf8
            • 3.Qd8#
      • 1...g5
        • 2.Qf6
          • threat
            • 3.e7#
      • 1...g6
        • 2.Qf6
          • threat
            • 3.e7#
      • 1...d5
        • 2.Qb4+
          • 2...c5
            • 3.Qxc5#

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).