Problem Display
PID: 173854 (1K6/8/1p6/1P2k1P1/2pN4/2Q5/2PB4/8 w - - 0 1)

Borovik, Boris V

Sachove umeni (Ceskoslovensky sach), 1981

1K6/8/1p6/1P2k1P1/2pN4/2Q5/2PB4/8

#3

7 + 3


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Kc7?
      • threat
        • 2.Kc6
          • 2...Ke4
            • 3.Qe3#
      • 1...Ke4
        • 2.Kc6
          • 2...Ke5
            • 3.Qe3#
      • 1...Kd5!
    • 1.Qe3+?
      • 1...Kd6
        • 2.Qe6+
          • 2...Kc5
            • 3.Qe5#
      • 1...Kd5!
    • 1.Qxc4?
      • 1...Ke4
        • 2.c3
          • 2...Ke5
            • 3.Qe6#
      • 1...Kd6!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qf5+
          • 2...Kxd4
            • 3.c3#
          • 2...Kd6
            • 3.Bb4#
      • 1...Kxd4
        • 2.Qe6
          • 2...Kc5
            • 3.Qe5#
          • 2...c3
            • 3.Be3#
      • 1...Ke4
        • 2.Qf5+
          • 2...Kxd4
            • 3.c3#
      • 1...Kd5
        • 2.Qf5+
          • 2...Kxd4
            • 3.c3#
          • 2...Kd6
            • 3.Bb4#
      • 1...Kd6
        • 2.Qe6+
          • 2...Kc5
            • 3.Qe5#
      • 1...c3
        • 2.Qe6+
          • 2...Kxd4
            • 3.Be3#

FEATURES


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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).