Problem Display
PID: 176892 (8/8/p7/kP6/8/3Q4/N1P1K3/8 w - - 0 1)

Dimitrov, Nikolai

Schach-Echo, 1976

8/8/p7/kP6/8/3Q4/N1P1K3/8

#3

5 + 2


6490 yacpdb 2018
5454 Near Snap 2022

SOLUTION


  • SOUND
  • Tries
    • 1.Qc4?
      • threat
        • 2.Qc5
          • 2...Ka4
            • 3.Qb4#
          • 2...axb5
            • 3.Qa7#
      • 1...axb5
        • 2.Qc7+
          • 2...Ka4
            • 3.Qa7#
          • 2...Ka6
            • 3.Sb4#
      • 1...Kb6!
    • 1.Qd4?
      • threat
        • 2.Qc5
          • 2...Ka4
            • 3.Qb4#
          • 2...axb5
            • 3.Qa7#
      • 1...axb5
        • 2.Qa7#
      • 1...Kxb5!
    • 1.bxa6?
      • 1...Ka4
        • 2.Qd5
          • 2...Ka3
            • 3.Qb3#
      • 1...Kb6!
    • 1.b6?
      • 1...Ka4
        • 2.Qxa6#
      • 1...Kxb6!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qxa6#
      • 1...Kxb5
        • 2.Kd3
          • 2...Ka4
            • 3.Qb4#
            • 3.Qxa6#
          • 2...Ka5
            • 3.Qb4#
          • 2...a5
            • 3.Sc3#
      • 1...axb5
        • 2.Qc7+
          • 2...Ka4
            • 3.Qa7#
          • 2...Ka6
            • 3.Sb4#

This anticipates 171580(1988)

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).