Problem Display
PID: 167256 (8/2p3pK/1p6/2k5/P3B3/2Np4/Q5P1/8 w - - 0 1)

Petrasinovic, Petrasin

Sachmatija, 2011

8/2p3pK/1p6/2k5/P3B3/2Np4/Q5P1/8

#4

6 + 5


SOLUTION


  • SOUND
  • Keys
    • 1.Bc6!
      • threat
        • 2.Qd5+
          • 2...Kb4
            • 3.Sb1
              • threat
                • 4.Qb5#
              • 3...b5
                • 4.Qxb5#
      • 1...Kb4
        • 2.Sb1
          • threat
            • 3.Qd5
              • threat
                • 4.Qb5#
              • 3...b5
                • 4.Qxb5#
          • 2...Ka5
            • 3.Qc4
              • threat
                • 4.Qb5#
              • 3...b5
                • 4.Qxb5#
          • 2...Kc5
            • 3.Qd5+
              • 3...Kb4
                • 4.Qb5#
          • 2...b5
            • 3.Qd5
              • threat
                • 4.Qxb5#
              • 3...Kxa4
                • 4.Qxb5#
              • 3...Ka5
                • 4.Qxb5#
              • 3...bxa4
                • 4.Qb5#
      • 1...Kd4
        • 2.Se4
          • threat
            • 3.Qb2+
              • 3...Ke3
                • 4.Qf2#
              • 3...Kc4
                • 4.Qc3#
          • 2...Ke5
            • 3.Qd5+
              • 3...Kf4
                • 4.Qg5#
          • 2...d2
            • 3.Qd5+
              • 3...Ke3
                • 4.Qxd2#
      • 1...Kd6
        • 2.Qd5+
          • 2...Ke7
            • 3.Kxg7
              • threat
                • 4.Qd7#
      • 1...b5
        • 2.Qd5+
          • 2...Kb4
            • 3.Sb1
              • threat
                • 4.Qxb5#
              • 3...Kxa4
                • 4.Qxb5#
              • 3...Ka5
                • 4.Qxb5#
              • 3...bxa4
                • 4.Qb5#
          • 2...Kb6
            • 3.Qxb5+
              • 3...Ka7
                • 4.Qb7#

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).