Problem Display
PID: 37571 (3K4/8/8/1p1pN2Q/3kp1P1/4p3/2p1P3/2B5 w - - 0 1)

van Dort, HW

Recomm., BCF 011. Ty., 1932-1933

3K4/8/8/1p1pN2Q/3kp1P1/4p3/2p1P3/2B5

#3

6 + 6


SOLUTION


  • SOUND
  • Tries
    • 1.Qe8?
      • 1...Kc3
        • 2.Qxb5
          • threat
            • 3.Qb2#
          • 2...Kd4
            • 3.Bb2#
      • 1...b4
        • 2.Bb2+
          • 2...Kc5
            • 3.Qc6#
      • 1...Kc5!
    • 1.Qh7?
      • threat
        • 2.Qc7
          • 2...b4
            • 3.Bb2#
      • 1...Kc3
        • 2.Qa7
          • 2...Kb3
            • 3.Qa3#
          • 2...Kb4
            • 3.Qa3#
          • 2...b4
            • 3.Qxe3#
          • 2...d4
            • 3.Qa3#
      • 1...Kc5
        • 2.Qa7+
          • 2...Kb4
            • 3.Qa3#
          • 2...Kd6
            • 3.Qe7#
      • 1...b4
        • 2.Qc7
          • 2...b3
            • 3.Bb2#
      • 1...Kxe5!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qc7
          • 2...b4
            • 3.Bb2#
      • 1...Kc3
        • 2.Qa7
          • 2...Kb3
            • 3.Qa3#
          • 2...Kb4
            • 3.Qa3#
          • 2...b4
            • 3.Qxe3#
          • 2...d4
            • 3.Qa3#
      • 1...Kc5
        • 2.Qa7+
          • 2...Kb4
            • 3.Qa3#
          • 2...Kd6
            • 3.Qe7#
      • 1...Kxe5
        • 2.Bxe3
          • threat
            • 3.Qe7#
          • 2...Kd6
            • 3.Qf6#
          • 2...d4
            • 3.Bf4#
      • 1...b4
        • 2.Qc7
          • 2...b3
            • 3.Bb2#

FEATURES


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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).