Problem Display
PID: 183824 (q2n4/5p2/prp1p1N1/p7/Pk1NPp1Q/1P5b/1B6/1K1B4 w - - 0 1)

Dusold, Johannes

Suddeutsche Schachblatter, 1907

q2n4/5p2/prp1p1N1/p7/Pk1NPp1Q/1P5b/1B6/1K1B4

#3

9 + 11


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qe7#
    • 1...c5
      • 2.Qe1#
  • Tries
    • 1.Sc2+?
      • 1...Kc5
        • 2.Qe7#
      • 1...Kxb3!
    • 1.Sxf4?
      • threat
        • 2.Sd3#
      • 1...Kc5
        • 2.Qe7#
      • 1...Bf1!
    • 1.Se5?
      • threat
        • 2.Sd3#
      • 1...Kc5
        • 2.Qe7#
      • 1...Bf1!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qe1+
          • 2...Kc5
            • 3.Bd4#
            • 3.Qc3#
      • 1...Bxf5
        • 2.Sxf4
          • threat
            • 3.Sd3#
          • 2...Kc5
            • 3.Qe7#
      • 1...exf5
        • 2.Qf6
          • threat
            • 3.Qc3#
            • 3.Qd4#
          • 2...Kc5
            • 3.Qd4#
            • 3.Qe7#
      • 1...Rb5
        • 2.Qe1+
          • 2...Kc5
            • 3.Bd4#
      • 1...Rb7
        • 2.Qe1+
          • 2...Kc5
            • 3.Bd4#
      • 1...Rb8
        • 2.Qe1+
          • 2...Kc5
            • 3.Bd4#
      • 1...Bf1
        • 2.Qe1+
          • 2...Kc5
            • 3.Bd4#
      • 1...e5
        • 2.Qe1+
          • 2...Kc5
            • 3.Qc3#

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).