Problem Display
PID: 32033 (5BB1/8/8/8/1n6/2k5/8/1Q4K1 w - - 0 1)

Zlatanov, Angel

Shakhmaty v SSSR, 1956

5BB1/8/8/8/1n6/2k5/8/1Q4K1

#3

4 + 2


SOLUTION


  • SOUND
  • Tries
    • 1.Qxb4+?
      • 1...Kc2
        • 2.Bh6
          • threat
            • 3.Qb3#
          • 2...Kd1
            • 3.Qd2#
          • 2...Kd3
            • 3.Qc4#
      • 1...Kd3!
  • Keys
    • 1.Bh7!
      • threat
        • 2.Qxb4#
      • 1...Kd2
        • 2.Bxb4+
          • 2...Ke2
            • 3.Qd3#
          • 2...Ke3
            • 3.Qe4#
      • 1...Kc4
        • 2.Qxb4+
          • 2...Kd5
            • 3.Qe4#
      • 1...Kd4
        • 2.Qe4+
          • 2...Kc3
            • 3.Qxb4#
      • 1...Sa2
        • 2.Qc2+
          • 2...Kd4
            • 3.Qc5#
      • 1...Sc2
        • 2.Qxc2+
          • 2...Kd4
            • 3.Qc5#
      • 1...Sd3
        • 2.Qxd3+
          • 2...Kb2
            • 3.Qa3#
      • 1...Sd5
        • 2.Qd3+
          • 2...Kb2
            • 3.Qa3#
      • 1...Sa6
        • 2.Qd3+
          • 2...Kb2
            • 3.Qa3#
      • 1...Sc6
        • 2.Qc2+
          • 2...Kd4
            • 3.Qc5#
        • 2.Qd3+
          • 2...Kb2
            • 3.Qa3#
        • 2.Qc1+
          • 2...Kb3
            • 3.Qc2#
          • 2...Kd4
            • 3.Qc5#

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).