Problem Display
PID: 71753 (5R2/K2B2b1/N7/p1Bkppp1/r5r1/3p3p/2PNP1pq/3Qn3 w - - 0 1)

Feoktistov, Aleksandr Fedorovich

2nd Prize, Source?, 1976

5R2/K2B2b1/N7/p1Bkppp1/r5r1/3p3p/2PNP1pq/3Qn3

#4

9 + 13


3771 FIDE Album (1974-1976) 1980

SOLUTION


  • SOUND
  • Keys
    • 1.Re8!
      • threat
        • 2.Be6+
          • 2...Kc6
            • 3.Rc8+
              • 3...Kb5
                • 4.Bd7#
      • 1...Rad4
        • 2.c4+
          • 2...Rxc4
            • 3.Qb3
              • threat
                • 4.Qb7#
      • 1...Rgd4
        • 2.e4+
          • 2...Rxe4
            • 3.Qh5
              • threat
                • 4.Qf7#
          • 2...fxe4
            • 3.Qg4
              • threat
                • 4.Qe6#
      • 1...e4
        • 2.Qb1
          • threat
            • 3.Qb7#
          • 2...Qc7+
            • 3.Sxc7+
              • 3...Kxc5
                • 4.Qb6#
          • 2...Qb8+
            • 3.Qxb8
              • threat
                • 4.Qd6#
                • 4.Qb7#
                • 4.Qa8#
          • 2...Qd6
            • 3.Qa2+
              • 3...Rxa2
                • 4.c4#
              • 3...Rc4
                • 4.Qxc4#
            • 3.Qb3+
              • 3...Rc4
                • 4.Qxc4#
            • 3.Qb7+
              • 3...Qc6
                • 4.Bxc6#
                • 4.Qxc6#
          • 2...Rb4
            • 3.Qa2+
              • 3...Rb3
                • 4.Qxb3#
                • 4.c4#
              • 3...Rc4
                • 4.Qxc4#
            • 3.Qb3+
              • 3...Rxb3
                • 4.c4#
              • 3...Rc4
                • 4.Qxc4#
                • 4.Qb7#
            • 3.c4+
              • 3...Rxc4
                • 4.Qb7#
          • 2...Bb2
            • 3.Qa2+
              • 3...Rxa2
                • 4.c4#
              • 3...Rc4
                • 4.Qxc4#

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).