Problem Display
PID: 106581 (4K3/4pp1p/8/kPQp4/3p4/3N4/N5n1/7r w - - 0 1)

Kos, Vladimir

Lidova Demokracie, 1947

4K3/4pp1p/8/kPQp4/3p4/3N4/N5n1/7r

#3

5 + 8


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Ka4
      • 2.Qb4#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Qa7#
        • 2.Qc7#
      • 1...Rh6
        • 2.Sa4
          • threat
            • 3.Qb4#
          • 2...Kxa4
            • 3.Qb4#
        • 2.Sxd5
          • threat
            • 3.Qb4#
          • 2...Ka4
            • 3.Qb4#
        • 2.Qa7+
          • 2...Ra6
            • 3.Qxa6#
      • 1...dxc3!
    • 1.Sab4?
      • threat
        • 2.Sb2
          • threat
            • 3.Sc6#
            • 3.b6#
        • 2.Sc6+
          • 2...Ka4
            • 3.Qb4#
        • 2.Qa7+
          • 2...Kxb5
            • 3.Qa6#
      • 1...Ra1
        • 2.Sb2
          • threat
            • 3.Sc6#
            • 3.b6#
        • 2.Sc6+
          • 2...Ka4
            • 3.Qb4#
      • 1...Rb1
        • 2.Qa7+
          • 2...Kxb5
            • 3.Qa6#
      • 1...Rc1
        • 2.Sc6+
          • 2...Ka4
            • 3.Qb4#
        • 2.Qa7+
          • 2...Kxb5
            • 3.Qa6#
      • 1...Rh6
        • 2.Sxd5
          • threat
            • 3.Qb4#
          • 2...Ka4
            • 3.Qb4#
      • 1...Ka4!
    • 1.Se5?
      • threat
        • 2.Sc6+
          • 2...Ka4
            • 3.Qb4#
      • 1...Rh6
        • 2.Sd7
          • threat
            • 3.Qb4#
          • 2...Ka4
            • 3.Qb4#
      • 1...Rb1!
    • 1.b6+?
      • 1...Ka4
        • 2.Qb4#
      • 1...Ka6!
  • Keys
    • 1.Sb2!
      • threat
        • 2.Sb4
          • threat
            • 3.Sc6#
            • 3.b6#
      • 1...Rb1
        • 2.Qc6
          • threat
            • 3.Qa6#
      • 1...Rc1
        • 2.Sxc1
          • threat
            • 3.Sb3#
      • 1...Rh6
        • 2.Sa4
          • threat
            • 3.Qb4#
          • 2...Kxa4
            • 3.Qb4#

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).