Problem Display
PID: 209028 (4qb2/8/8/2r5/Rp1p1pp1/1pkp4/pNpN4/KbB5 w - - 0 1)

Trinks, Otto

Wiener Schachzeitung, 1930

4qb2/8/8/2r5/Rp1p1pp1/1pkp4/pNpN4/KbB5

#5

5 + 13


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Ra5!
      • threat
        • 2.Rxc5+
          • 2...Bxc5
            • 3.Sbc4
              • threat
                • 4.Bb2#
              • 3...b2+
                • 4.Bxb2#
      • 1...Rc7
        • 2.Sf1
          • threat
            • 3.Bd2#
          • 2...Qe1
            • 3.Sa4+
              • 3...Kc4
                • 4.Sb6+
                  • 4...Kc3
                    • 5.Bb2#
            • 3.Bd2+
              • 3...Qxd2
                • 4.Sa4+
                  • 4...Kc4
                    • 5.Sxd2#
          • 2...Qe2
            • 3.Sa4+
              • 3...Kc4
                • 4.Sb6+
                  • 4...Kc3
                    • 5.Bb2#
            • 3.Bd2+
              • 3...Qxd2
                • 4.Sa4+
                  • 4...Kc4
                    • 5.Sxd2#
          • 2...Qe3
            • 3.Sa4+
              • 3...Kc4
                • 4.Sb6+
                  • 4...Kc3
                    • 5.Bb2#
            • 3.Bd2+
              • 3...Qxd2
                • 4.Sa4+
                  • 4...Kc4
                    • 5.Sxd2#
        • 2.Rb5
          • threat
            • 3.Sa4#
          • 2...Qa8
            • 3.Rb8
              • threat
                • 4.Rxa8
                  • threat
                    • 5.Sa4#
                    • 5.Se4#
              • 3...Qc6
                • 4.Sbc4
                  • threat
                    • 5.Bb2#
                  • 4...b2+
                    • 5.Bxb2#
                  • 4...Qxc4
                    • 5.Se4#
              • 3...Ra7
                • 4.Rxa8
                  • threat
                    • 5.Se4#
                  • 4...Re7
                    • 5.Sa4#
                • 4.Sbc4
                  • threat
                    • 5.Bb2#
                  • 4...b2+
                    • 5.Bxb2#
              • 3...Re7
                • 4.Rxa8
                  • threat
                    • 5.Sa4#
                  • 4...Ra7
                    • 5.Se4#

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).