Problem Display
PID: 53121 (Q4b1r/3p1r2/3P4/p2PP3/2P2kpP/4N1Np/1P1BP2P/2K5 w - - 0 1)

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

Schach-Echo, 1933

Q4b1r/3p1r2/3P4/p2PP3/2P2kpP/4N1Np/1P1BP2P/2K5

#3

13 + 8


SOLUTION


  • SOUND
  • Sets
    • 1...Bxd6
      • 2.Sg2+
        • 2...Kxe5
          • 3.Bc3#
  • Tries
    • 1.Qc6?
      • threat
        • 2.Sg2+
          • 2...Kxe5
            • 3.Bc3#
      • 1...Kxe5
        • 2.Sxg4+
          • 2...Kd4
            • 3.Bc3#
            • 3.Be3#
      • 1...Bh6
        • 2.Qc5
          • threat
            • 3.Qd4#
          • 2...Kxe5
            • 3.Sxg4#
        • 2.Qb6
          • threat
            • 3.Qd4#
          • 2...Kxe5
            • 3.Sxg4#
      • 1...dxc6!
    • 1.Qxa5?
      • threat
        • 2.Sef5+
          • 2...Kxe5
            • 3.Qc3#
        • 2.Qc3
          • threat
            • 3.Sd1#
            • 3.Sef1#
            • 3.Sc2#
            • 3.Sg2#
            • 3.Sef5#
            • 3.Qd4#
      • 1...Rxh4
        • 2.Sef5+
          • 2...Kxe5
            • 3.Qc3#
      • 1...Rf5
        • 2.Sexf5+
          • 2...Kxe5
            • 3.Qc3#
        • 2.Qc3
          • threat
            • 3.Sd1#
            • 3.Sef1#
            • 3.Sc2#
            • 3.Sg2#
            • 3.Sexf5#
            • 3.Qd4#
      • 1...Kxe5!
    • 1.Qa7?
      • threat
        • 2.Qd4#
      • 1...Rxh4
        • 2.Sef5+
          • 2...Kxe5
            • 3.Qd4#
      • 1...Kxe5!
    • 1.Qb8?
      • threat
        • 2.Sg2+
          • 2...Kxe5
            • 3.Bc3#
      • 1...Bh6
        • 2.Qb6
          • threat
            • 3.Qd4#
          • 2...Kxe5
            • 3.Sxg4#
      • 1...Kxe5!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Sg2+
          • 2...Kxe5
            • 3.Bc3#
      • 1...Kxe5
        • 2.Sxg4+
          • 2...Kd4
            • 3.Be3#
      • 1...Bh6
        • 2.Qb6
          • threat
            • 3.Qd4#
          • 2...Kxe5
            • 3.Sxg4#

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).