Problem Display
PID: 126981 (8/1p6/1k6/8/8/8/8/2QRK3 w - - 0 1)

Orlik, Peter

3rd Comm., diagrammes, 1978

8/1p6/1k6/8/8/8/8/2QRK3

#3

3 + 2


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Rd5?
      • threat
        • 2.Qc5+
          • 2...Ka6
            • 3.Qa5#
      • 1...Ka7
        • 2.Qc7
          • threat
            • 3.Ra5#
          • 2...Ka6
            • 3.Ra5#
            • 3.Qa5#
          • 2...Ka8
            • 3.Ra5#
      • 1...Ka6!
    • 1.Qc3?
      • 1...Kb5
        • 2.Rb1+
          • 2...Ka4
            • 3.Qa1#
            • 3.Qb4#
          • 2...Ka6
            • 3.Qa1#
            • 3.Qa3#
      • 1...Ka7
        • 2.Qa5+
          • 2...Kb8
            • 3.Rd8#
      • 1...Ka6!
    • 1.Qc4?
      • 1...Ka5
        • 2.Rb1
          • threat
            • 3.Qa2#
            • 3.Qb5#
          • 2...b5
            • 3.Qxb5#
      • 1...Ka7!
    • 1.Qc5+?
      • 1...Ka6
        • 2.Ra1#
      • 1...Kxc5!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Rb1+
          • 2...Ka5
            • 3.Qa8#
          • 2...Ka6
            • 3.Qa8#
          • 2...Ka7
            • 3.Qxb7#
      • 1...Ka5
        • 2.Qxb7
          • 2...Ka4
            • 3.Ra1#
      • 1...Kb5
        • 2.Rb1+
          • 2...Ka4
            • 3.Qa8#
          • 2...Ka5
            • 3.Qa8#
          • 2...Ka6
            • 3.Qa8#
      • 1...Ka6
        • 2.Rb1
          • threat
            • 3.Qa8#
          • 2...Ka5
            • 3.Qa8#
          • 2...Ka7
            • 3.Qxb7#
      • 1...Ka7
        • 2.Rd6
          • 2...b5
            • 3.Ra6#
          • 2...b6
            • 3.Rd7#

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).