Problem Display
PID: 251338 (2K5/1Q6/1pN5/1k6/8/P4P2/3P4/8 w - - 0 1)

Ryabtsev, Volodimir Grigorovich

Sigurov, Aleksandr Ilich

Zadachi i Etyudi, 2004

2K5/1Q6/1pN5/1k6/8/P4P2/3P4/8

#3

6 + 2


SOLUTION


  • SOUND
  • Tries
    • 1.Sb4?
      • threat
        • 2.Qa8
          • 2...Kc4
            • 3.Qd5#
          • 2...Kc5
            • 3.Qd5#
      • 1...Kc4
        • 2.Qd5#
      • 1...Ka5
        • 2.Qa6#
      • 1...Kc5
        • 2.Qd5#
      • 1...Ka4!
    • 1.Se5?
      • 1...Ka5
        • 2.Qd7
          • 2...Ka6
            • 3.Qa4#
          • 2...b5
            • 3.Qa7#
      • 1...Kc5
        • 2.Qc6+
          • 2...Kd4
            • 3.Qd6#
      • 1...Ka4!
    • 1.Se7?
      • threat
        • 2.Qa8
          • 2...Kc4
            • 3.Qd5#
          • 2...Kc5
            • 3.Qd5#
      • 1...Ka5
        • 2.Qd7
          • 2...Ka6
            • 3.Qa4#
          • 2...b5
            • 3.Qa7#
      • 1...Ka4!
  • Keys
    • 1.Sa5!
      • 1...Ka4
        • 2.Qxb6
          • 2...Kxa3
            • 3.Qb3#
      • 1...Kxa5
        • 2.Qd7
          • 2...Ka6
            • 3.Qa4#
          • 2...b5
            • 3.Qa7#
      • 1...Kc5
        • 2.Qc6+
          • 2...Kd4
            • 3.Qd6#

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).