Problem Display
PID: 45803 (8/8/R2p1p2/5k2/1p3p2/1K3Q2/8/8 w - - 0 1)

Epifanov, Anatoly G

1st Prize, Moscow Ty., 2001

8/8/R2p1p2/5k2/1p3p2/1K3Q2/8/8

#4

3 + 5


145 StrateGems 2002

SOLUTION


  • SOUND
  • Keys
    • 1.Ra1!
      • threat
        • 2.Qd5+
          • 2...Kg4
            • 3.Rg1+
              • 3...Kh3
                • 4.Qh1#
                • 4.Qh5#
              • 3...Kh4
                • 4.Qh1#
          • 2...Kg6
            • 3.Rg1+
              • 3...Kh6
                • 4.Qh1#
              • 3...Kh7
                • 4.Qh1#
                • 4.Qh5#
      • 1...Ke5
        • 2.Re1+
          • 2...Kd4
            • 3.Kxb4
              • threat
                • 4.Qd1#
                • 4.Qe4#
      • 1...Ke6
        • 2.Qe4+
          • 2...Kd7
            • 3.Ra7+
              • 3...Kc8
                • 4.Qa8#
                • 4.Qe8#
              • 3...Kd8
                • 4.Qa8#
          • 2...Kf7
            • 3.Ra7+
              • 3...Kf8
                • 4.Qa8#
              • 3...Kg8
                • 4.Qa8#
                • 4.Qe8#
      • 1...Kg6
        • 2.Qg4+
          • 2...Kf7
            • 3.Ra7+
              • 3...Ke8
                • 4.Qc8#
                • 4.Qg8#
              • 3...Kf8
                • 4.Qc8#
      • 1...d5
        • 2.Qxd5+
          • 2...Kg4
            • 3.Rg1+
              • 3...Kh3
                • 4.Qh1#
                • 4.Qh5#
              • 3...Kh4
                • 4.Qh1#
          • 2...Kg6
            • 3.Rg1+
              • 3...Kh6
                • 4.Qh1#
              • 3...Kh7
                • 4.Qh1#
                • 4.Qh5#

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).