Problem Display
PID: 263432 (2N1N1kr/2p2p1p/3pB3/6PK/5p1p/p1pQP3/8/b2n1r2 w - - 0 1)

Feoktistov, Aleksandr Fedorovich

Gurov, Valery Valerevich

1/2 Prize, 64 Shakhmatnoe obozrenie, 2022

2N1N1kr/2p2p1p/3pB3/6PK/5p1p/p1pQP3/8/b2n1r2

#5

7 + 13


SOLUTION


  • SOUND
  • Keys
    • 1.Qe4!
      • threat
        • 2.Bxf7+
          • 2...Kxf7
            • 3.Qe7+
              • 3...Kg8
                • 4.Sf6#
                • 4.Qg7#
      • 1...fxe3
        • 2.Qd4
          • threat
            • 3.Qg7#
          • 2...c2
            • 3.Qxa1
              • threat
                • 4.Qg7#
              • 3...Rf6
                • 4.Qxf6
                  • threat
                    • 5.Qg7#
                    • 5.Qxf7#
                  • 4...Kf8
                    • 5.Qxh8#
                    • 5.Qxf7#
              • 3...Sb2
                • 4.Qxf1
                  • threat
                    • 5.Qxf7#
                  • 4...Kf8
                    • 5.Qxf7#
                  • 4...fxe6
                    • 5.Se7#
              • 3...Sc3
                • 4.Qxf1
                  • threat
                    • 5.Qxf7#
                  • 4...Kf8
                    • 5.Qxf7#
                  • 4...fxe6
                    • 5.Se7#
      • 1...c2
        • 2.Qf5
          • threat
            • 3.Qxf7#
          • 2...fxe3
            • 3.Qxf1
              • threat
                • 4.Qxf7#
              • 3...Bf6
                • 4.Qxf6
                  • threat
                    • 5.Qg7#
                    • 5.Qxf7#
                  • 4...Kf8
                    • 5.Qxh8#
                    • 5.Qxf7#
              • 3...Sf2
                • 4.Qxa1
                  • threat
                    • 5.Qg7#
                  • 4...Kf8
                    • 5.Qxh8#

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).