Problem Display
PID: 35875 (8/4p3/2B1P3/kP1P4/N1QP4/qpP5/1N4K1/8 w - - 0 1)

Pachman, Vladimir

1st HM., Probleemblad, 1959

8/4p3/2B1P3/kP1P4/N1QP4/qpP5/1N4K1/8

#4

10 + 4


SOLUTION


  • SOUND
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sc4+
          • 2...Kxa4
            • 3.b6#
      • 1...Qxb2+
        • 2.Sxb2
          • 2...Kb6
            • 3.Qf4
              • 3...Ka5
                • 4.Qc7#
              • 3...Ka7
                • 4.Qc7#
      • 1...Qxa4
        • 2.Sxa4
          • threat
            • 3.Qc4
              • 3...b2
                • 4.Qb4#
            • 3.Qf8
              • threat
                • 4.Qa8#
              • 3...Kxa4
                • 4.Qa8#
            • 3.b6
              • 3...b2
                • 4.Qb5#
          • 2...b2
            • 3.Qb1
              • 3...Kxa4
                • 4.Qa2#
      • 1...Qc5
        • 2.Sc4+
          • 2...Kxa4
            • 3.Qa1+
              • 3...Qa3
                • 4.Qxa3#
                • 4.b6#
            • 3.dxc5
              • 3...b2
                • 4.Qd1#
          • 2...Qxc4
            • 3.Qxc4
              • 3...b2
                • 4.Qb4#
        • 2.Sxc5
          • 2...Kb6
            • 3.Qf4
              • 3...Ka5
                • 4.Sc4#
                • 4.Qc7#
              • 3...Ka7
                • 4.Qc7#
      • 1...Qb4
        • 2.Sc4+
          • 2...Kxa4
            • 3.Qa1+
              • 3...Qa3
                • 4.Qxa3#
                • 4.b6#
            • 3.b6+
              • 3...Qb5
                • 4.Qa1#
          • 2...Qxc4
            • 3.Qxc4
              • 3...b2
                • 4.Qb4#
        • 2.cxb4+
          • 2...Kxb4
            • 3.Qa1
              • 3...Ka5
                • 4.Qe1#
      • 1...Qd6
        • 2.Sc4+
          • 2...Kxa4
            • 3.Qa1+
              • 3...Qa3
                • 4.Qxa3#
                • 4.b6#
      • 1...Qa2
        • 2.Qa1
          • 2...Qxb2+
            • 3.Qxb2
              • 3...Kxa4
                • 4.Qa1#
          • 2...Qxa1
            • 3.Sc4+
              • 3...Kxa4
                • 4.b6#
          • 2...Qa3
            • 3.Sc4+
              • 3...Kxa4
                • 4.Qxa3#
                • 4.b6#

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).