Problem Display
PID: 257051 (4nr1q/4ppb1/5p2/7p/8/PQNkpN2/8/6Kn w - - 0 1)

Rudenko, Valentin Fedorovich

1st Prize, 64 Shakhmatnoe obozrenie, 1974

4nr1q/4ppb1/5p2/7p/8/PQNkpN2/8/6Kn

#4

5 + 11


6490 yacpdb 2022
  • SOUND
  • Keys
    • 1.Kg2!
      • threat
        • 2.Sd5+
          • 2...Ke4
            • 3.Qc4+
              • 3...Kf5
                • 4.Sxe7#
      • 1...Sd6
        • 2.Se2+
          • 2...Ke4
            • 3.Qc2+
              • 3...Kd5
                • 4.Sf4#
      • 1...f5
        • 2.Se1+
          • 2...Kd2
            • 3.Qc2+
              • 3...Kxe1
                • 4.Qd1#
                • 4.Qc1#
                • 4.Qe2#
            • 3.Qb2+
              • 3...Kxe1
                • 4.Qc1#
                • 4.Qe2#
          • 2...Kd4
            • 3.Qb6+
              • 3...Kxc3
                • 4.Qb4#
              • 3...Kc4
                • 4.Qb4#
              • 3...Ke5
                • 4.Sd3#
      • 1...e5
        • 2.Sd5+
          • 2...Ke4
            • 3.Qc4+
              • 3...Kf5
                • 4.Se7#
        • 2.Se1+
          • 2...Kd2
            • 3.Qc2+
              • 3...Kxe1
                • 4.Qd1#
                • 4.Qc1#
                • 4.Qe2#
            • 3.Qb2+
              • 3...Kxe1
                • 4.Qc1#
                • 4.Qe2#
      • 1...e6
        • 2.Sd5+
          • 2...Ke4
            • 3.Qc4+
              • 3...Kf5
                • 4.Se7#


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).