Problem Display
PID: 194527 (K7/3p4/R2Np3/B1kp4/1ppp2p1/nq2p3/2n4Q/1r3N2 w - - 0 1)

Feoktistov, Aleksandr Fedorovich

3rd Prize, 07. World Cup, 2019

K7/3p4/R2Np3/B1kp4/1ppp2p1/nq2p3/2n4Q/1r3N2

#3

6 + 13


SOLUTION


  • SOUND
  • Sets
    • 1...Qa4
      • 2.Sb7+
        • 2...Kb5
          • 3.Rb6#
    • 1...Qd3
      • 2.Qh8
        • threat
          • 3.Qc8#
        • 2...Sb5
          • 3.Sb7#
    • 1...Sb5
      • 2.Sb7#
  • Tries
    • 1.Kb7?
      • threat
        • 2.Bb6#
      • 1...e5
        • 2.Qxe5
          • threat
            • 3.Bb6#
        • 2.Qh6
          • threat
            • 3.Bb6#
      • 1...g3!
    • 1.Sg3?
      • threat
        • 2.Sge4+
          • 2...dxe4
            • 3.Qe5#
      • 1...d3
        • 2.Sge4+
          • 2...Kd4
            • 3.Bb6#
          • 2...dxe4
            • 3.Qe5#
      • 1...Qd3
        • 2.Qh8
          • threat
            • 3.Qc8#
          • 2...Sb5
            • 3.Sb7#
      • 1...e5
        • 2.Sge4+
          • 2...dxe4
            • 3.Qxe5#
      • 1...c3!
    • 1.Se4+?
      • 1...Kb5
        • 2.Qb8+
          • 2...Ka4
            • 3.Sc5#
            • 3.Bxb4#
            • 3.Bc7#
            • 3.Bd8#
          • 2...Kxa6
            • 3.Qb6#
      • 1...dxe4!
    • 1.Rb6?
      • threat
        • 2.Sb7#
      • 1...d3
        • 2.Qf4
          • threat
            • 3.Sb7#
          • 2...d4
            • 3.Qe5#
      • 1...c3!
    • 1.Qh8?
      • threat
        • 2.Qc8#
      • 1...Qa4
        • 2.Sb7+
          • 2...Kb5
            • 3.Rb6#
      • 1...d3!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Kb7
          • threat
            • 3.Bb6#
      • 1...Qa2
        • 2.Sg3
          • threat
            • 3.Sge4#
      • 1...Qa4
        • 2.Sb7+
          • 2...Kb5
            • 3.Rb6#
      • 1...Qb2
        • 2.Sg3
          • threat
            • 3.Sge4#
      • 1...Qc3
        • 2.Rb6
          • threat
            • 3.Se4#
            • 3.Sb7#
      • 1...Qd3
        • 2.Qh8
          • threat
            • 3.Qc8#
          • 2...Sb5
            • 3.Sb7#
      • 1...c3
        • 2.Sg3
          • threat
            • 3.Sge4#

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).