Problem Display
PID: 19589 (8/8/8/2K5/2RB4/6p1/5NpP/6k1 w - - 0 1)

Loyd, Sam

Frank Leslie's Illustrated Newspaper, 1857

8/8/8/2K5/2RB4/6p1/5NpP/6k1

#4

5 + 3


5206 Sam Loyd and His Chess Problems 1913

SOLUTION


  • SOUND
  • Keys
    • 1.Sh3+!
      • 1...Kf1
        • 2.Sg1
          • threat
            • 3.Rc1#
          • 2...Ke1
            • 3.Be3
              • threat
                • 4.Rc1#
              • 3...Kd1
                • 4.Rc1#
              • 3...Kf1
                • 4.Rc1#
        • 2.Sf4
          • threat
            • 3.Rc1#
          • 2...Ke1
            • 3.Be3
              • threat
                • 4.Rc1#
              • 3...Kd1
                • 4.Rc1#
              • 3...Kf1
                • 4.Rc1#
      • 1...Kh1
        • 2.Bg1
          • 2...gxh2
            • 3.Rh4
              • 3...hxg1Q+
                • 4.Sf2#
              • 3...hxg1B+
                • 4.Sf2#
              • 3...hxg1S
                • 4.Sf2#
              • 3...hxg1R
                • 4.Sf2#
                • 4.Sf4#
                • 4.Sg5#
      • 1...Kxh2
        • 2.Sg1
          • 2...Kh1
            • 3.Be3
              • 3...Kh2
                • 4.Rh4#

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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).