MESON Chess Problem Database

Problem Display
PID: 237919 (3b4/1b1p4/p2p1p2/1P1p4/3B4/1p1p1KQ1/kN1P4/2R5 w - - 0 1)

Sommer, Bruno Oswald

Die Schwalbe, 1952

3b4/1b1p4/p2p1p2/1P1p4/3B4/1p1p1KQ1/kN1P4/2R5

#4

7 + 10

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Rf1!
      • threat
        • 2.Qe1
          • threat
            • 3.Qa1#
          • 2...Ka3
            • 3.Qa1+
              • 3...Kb4
                • 4.Qa4#
      • 1...Ka3
        • 2.Ra1+
          • 2...Kb4
            • 3.Qxd6+
              • 3...Kxb5
                • 4.Qc5#
      • 1...axb5
        • 2.Qg1
          • threat
            • 3.Ra1#
          • 2...Ka3
            • 3.Ra1+
              • 3...Kb4
                • 4.Bc3#
      • 1...Bc8
        • 2.Qe1
          • threat
            • 3.Qa1#
          • 2...Ka3
            • 3.Qa1+
              • 3...Kb4
                • 4.Qa4#
            • 3.Bc3
              • threat
                • 4.Qa1#
              • 3...Ka2
                • 4.Qa1#
        • 2.Qg1
          • threat
            • 3.Ra1#
          • 2...Ka3
            • 3.Bc3
              • threat
                • 4.Ra1#
              • 3...Ka2
                • 4.Ra1#

FEATURES

NOT CLASSIFIED
HTML5 logo

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).