Problem Display
PID: 140014 (8/1p6/7Q/p3N2p/3ppp2/4k1p1/n5R1/6K1 w - - 0 1)

Kromath, Herbert

Die Schwalbe, 1966

8/1p6/7Q/p3N2p/3ppp2/4k1p1/n5R1/6K1

#3

4 + 9


SOLUTION


  • SOUND
  • Sets
    • 1...Sb4
      • 2.Kf1
        • threat
          • 3.Re2#
        • 2...d3
          • 3.Qb6#
    • 1...d3
      • 2.Qb6#
  • Tries
    • 1.Sc4+?
      • 1...Kf3
        • 2.Qxh5#
      • 1...Kd3!
    • 1.Rf2?
      • threat
        • 2.Qxf4#
      • 1...d3
        • 2.Qb6#
      • 1...gxf2+!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qb2
          • threat
            • 3.Re2#
            • 3.Qd2#
            • 3.Qe2#
          • 2...d3
            • 3.Qb6#
      • 1...Sc1
        • 2.Qb2
          • threat
            • 3.Qxc1#
            • 3.Qd2#
          • 2...Se2+
            • 3.Rxe2#
            • 3.Qxe2#
          • 2...Sb3
            • 3.Re2#
            • 3.Qe2#
          • 2...d3
            • 3.Qb6#
      • 1...Sc3
        • 2.Qb2
          • threat
            • 3.Qc1#
            • 3.Qd2#
          • 2...Se2+
            • 3.Rxe2#
            • 3.Qxe2#
          • 2...d3
            • 3.Qb6#
          • 2...Sb1
            • 3.Re2#
            • 3.Qe2#
      • 1...Sb4
        • 2.Kf1
          • threat
            • 3.Re2#
          • 2...f3
            • 3.Qh6#

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).