Problem Display
PID: 68250 (8/BKp1p3/2N1P2b/2Pk1Pp1/6P1/NP1PR3/8/q3n3 w - - 0 1)

Kalinin, Aleksandr Konstantinovich

1st Prize, Source?, 1968

8/BKp1p3/2N1P2b/2Pk1Pp1/6P1/NP1PR3/8/q3n3

#5

11 + 7


3751 FIDE Album (1968-1970) 1977

SOLUTION


  • SOUND
  • Keys
    • 1.Re2!
      • threat
        • 2.Sb4+
          • 2...Kd4
            • 3.Sb5#
      • 1...Sc2
        • 2.Re4
          • threat
            • 3.Sxe7#
          • 2...Bf8
            • 3.Re5+
              • 3...Qxe5
                • 4.Sb5
                  • 4...Qxf5
                    • 5.Sxc7#
                  • 4...Qxe6
                    • 5.Sc3#
                    • 5.Sxc7#
                  • 4...Qa1
                    • 5.Sxc7#
                  • 4...Qb2
                    • 5.Sxc7#
                  • 4...Qh2
                    • 5.Sc3#
                  • 4...Qc3
                    • 5.Sxc3#
                    • 5.Sxc7#
                  • 4...Qg3
                    • 5.Sc3#
                  • 4...Qd4
                    • 5.Sxc7#
                  • 4...Qf4
                    • 5.Sc3#
                  • 4...Qd6
                    • 5.Sc3#
                  • 4...Qf6
                    • 5.Sxc7#
                  • 4...Qg7
                    • 5.Sxc7#
                  • 4...Qh8
                    • 5.Sxc7#
                  • 4...Qe1
                    • 5.Sxc7#
                  • 4...Qe2
                    • 5.Sc3#
                    • 5.Sxc7#
                  • 4...Qe3
                    • 5.Sc3#
                    • 5.Sxc7#
                  • 4...Qe4
                    • 5.Sc3#
                    • 5.Sxc7#
                  • 4...Bh6
                    • 5.Sxe7#
                  • 4...Bg7
                    • 5.Sxe7#
                  • 4...Sa1
                    • 5.Sb4#
                  • 4...Se1
                    • 5.Sb4#
                  • 4...Sa3
                    • 5.Sb4#
                  • 4...Se3
                    • 5.Sb4#
                  • 4...Sb4
                    • 5.Sxb4#
                  • 4...Sd4
                    • 5.Sc3#
                    • 5.Sb4#

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).