Problem Display
PID: 263599 (8/N3N3/8/5PRP/KPkp2p1/p5q1/P1Pp3r/B2B1br1 w - - 0 1)

Kubbel, Leonid Ivanovich (AKA Kubbel, Karl Artur Leonid)

2nd Prize, Tijdschrift vd NSB, 1934

8/N3N3/8/5PRP/KPkp2p1/p5q1/P1Pp3r/B2B1br1

#3

11 + 9


6490 yacpdb 2022

SOLUTION


  • SOUND
  • Sets
    • 1...Qf2
      • 2.Sac8
        • threat
          • 3.Sb6#
          • 3.Sd6#
    • 1...Qh4
      • 2.Sac6
        • threat
          • 3.Sa5#
          • 3.Se5#
      • 2.Sac8
        • threat
          • 3.Sb6#
          • 3.Sd6#
    • 1...Qb3+
      • 2.axb3#
    • 1...Qh3
      • 2.Sac6
        • threat
          • 3.Sa5#
          • 3.Se5#
        • 2...Qb3+
          • 3.axb3#
      • 2.Sac8
        • threat
          • 3.Sb6#
          • 3.Sd6#
        • 2...Qb3+
          • 3.axb3#
    • 1...d3
      • 2.c3
        • threat
          • 3.Bb3#
  • Tries
    • 1.Sac6?
      • threat
        • 2.Sa5#
      • 1...Qb3+
        • 2.axb3#
      • 1...Qe5
        • 2.Sxe5#
      • 1...Qc7!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Bf3
          • threat
            • 3.Sxa3#
            • 3.Bd5#
          • 2...Qxf3
            • 3.Sd6#
      • 1...Re2
        • 2.f6
          • threat
            • 3.Rc5#
          • 2...Qb3+
            • 3.axb3#
          • 2...Qe5
            • 3.Sxa3#
          • 2...Qd6
            • 3.Sxa3#
            • 3.Sxd6#
          • 2...Qc7
            • 3.Sxa3#
          • 2...Re5
            • 3.Sd6#
      • 1...Rf2
        • 2.Rxg4
          • threat
            • 3.Rxd4#
          • 2...Qb3+
            • 3.axb3#
          • 2...Qxg4
            • 3.Sxa3#
            • 3.Sd6#
          • 2...Qf4
            • 3.Sxa3#
          • 2...Qh4
            • 3.Sxa3#
            • 3.Sd6#
          • 2...Qe5
            • 3.Sxa3#
          • 2...Qd6
            • 3.Sxa3#
            • 3.Sxd6#
          • 2...Qc3
            • 3.Sd6#
          • 2...Qd3
            • 3.Sd6#
          • 2...Qe3
            • 3.Sd6#
          • 2...Rf4
            • 3.Sd6#
      • 1...Be2
        • 2.Rg6
          • threat
            • 3.Rc6#
          • 2...Qb3+
            • 3.axb3#
          • 2...Qe5
            • 3.Sxa3#
          • 2...Qd6
            • 3.Sxa3#
            • 3.Sxd6#
          • 2...Qc7
            • 3.Sxa3#
          • 2...Qg2
            • 3.Sxa3#
            • 3.Sd6#
          • 2...Qf3
            • 3.Sd6#
          • 2...Bf3
            • 3.Sxa3#
      • 1...Bg2
        • 2.Be2+
          • 2...Qd3
            • 3.Sxa3#
            • 3.Sd6#
            • 3.Bxd3#
            • 3.cxd3#
          • 2...d3
            • 3.Sxa3#

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).