Problem Display
PID: 172600 (2K5/8/8/8/1kPN4/1P6/3p4/Q7 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1998

2K5/8/8/8/1kPN4/1P6/3p4/Q7

#3

5 + 2


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Sc2+?
      • 1...Kc5
        • 2.Kc7
          • threat
            • 3.Qd4#
            • 3.Qe5#
            • 3.Qg1#
            • 3.Qa3#
            • 3.Qa5#
            • 3.Qa7#
        • 2.Qd4+
          • 2...Kc6
            • 3.Sb4#
        • 2.Qa6
          • threat
            • 3.b4#
      • 1...Kxb3!
    • 1.Sb5?
      • threat
        • 2.Qa3#
      • 1...Kc5
        • 2.Kb7
          • threat
            • 3.Qa3#
          • 2...Kb4
            • 3.Qa3#
        • 2.Kc7
          • threat
            • 3.Qa3#
          • 2...Kb4
            • 3.Qa3#
        • 2.Qa7+
          • 2...Kb4
            • 3.Qa3#
          • 2...Kc6
            • 3.Qc7#
      • 1...Kxb3!
    • 1.Sc6+?
      • 1...Kc5
        • 2.Kc7
          • threat
            • 3.Qd4#
            • 3.Qe5#
            • 3.Qg1#
            • 3.Qa3#
            • 3.Qa5#
            • 3.Qa7#
        • 2.Qe5+
          • 2...Kb6
            • 3.Qb5#
          • 2...Kxc6
            • 3.Qc7#
        • 2.Qa5+
          • 2...Kxc6
            • 3.Qc7#
          • 2...Kd6
            • 3.Qd5#
      • 1...Kxb3!
  • Keys
    • 1.Kb7!
      • threat
        • 2.Kb6
          • threat
            • 3.Qa5#
        • 2.Qa5+
          • 2...Kxa5
            • 3.Sc6#
      • 1...Kc5
        • 2.Sb5
          • threat
            • 3.Qa3#
          • 2...Kb4
            • 3.Qa3#
      • 1...d1Q
        • 2.Qa5+
          • 2...Kxa5
            • 3.Sc6#
      • 1...d1B
        • 2.Qa5+
          • 2...Kxa5
            • 3.Sc6#
      • 1...d1R
        • 2.Qa5+
          • 2...Kxa5
            • 3.Sc6#

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).