Problem Display
PID: 268370 (8/7R/2N5/P1p3P1/1pk3p1/4p1P1/2P1K3/7Q w - - 0 1)

Dolgov, Vasil Fedorovich

Shakhmatnaya kompozitsiya, 1996

8/7R/2N5/P1p3P1/1pk3p1/4p1P1/2P1K3/7Q

#3

8 + 5


SOLUTION


  • SOUND
  • Tries
    • 1.Rb7?
      • 1...b3
        • 2.Qe4+
          • 2...Kc3
            • 3.Rxb3#
        • 2.cxb3+
          • 2...Kc3
            • 3.Qc1#
      • 1...Kc3!
    • 1.Qd5+?
      • 1...Kb5
        • 2.Rb7+
          • 2...Ka4
            • 3.Qa2#
            • 3.Qb3#
          • 2...Ka6
            • 3.Rb6#
      • 1...Kxd5!
    • 1.Qd1?
      • threat
        • 2.Qd3#
      • 1...Kb5
        • 2.Rb7+
          • 2...Ka4
            • 3.Qa1#
          • 2...Kc4
            • 3.Qd3#
          • 2...Ka6
            • 3.Rb6#
          • 2...Kxc6
            • 3.Qd7#
      • 1...Kc3!
  • Keys
    • 1.Qb1!
      • 1...Kb5
        • 2.c4+
          • 2...Ka4
            • 3.Qa2#
          • 2...Kxc4
            • 3.Qd3#
          • 2...Ka6
            • 3.Ra7#
          • 2...Kxc6
            • 3.Qg6#
      • 1...Kd5
        • 2.Qd1+
          • 2...Kc4
            • 3.Qd3#
          • 2...Ke4
            • 3.Qd3#
          • 2...Kxc6
            • 3.Qd7#
          • 2...Ke6
            • 3.Qd7#

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).