Problem Display
PID: 57561 (8/8/1Q6/8/8/4K3/ppN5/1k6 w - - 0 1)

Alekhine, Alexander Alexandrovich

Berner Tagblatt, 1925

8/8/1Q6/8/8/4K3/ppN5/1k6

#3

3 + 3


35 L'Italia Scacchistica 1999

SOLUTION


  • SOUND
  • Tries
    • 1.Sa3+?
      • 1...Kc1
        • 2.Qc6+
          • 2...Kd1
            • 3.Qh1#
      • 1...Ka1!
    • 1.Sb4?
      • threat
        • 2.Qa6
          • threat
            • 3.Qf1#
          • 2...Ka1
            • 3.Qxa2#
          • 2...Kc1
            • 3.Qf1#
      • 1...Ka1
        • 2.Qd4
          • 2...Kb1
            • 3.Qd1#
        • 2.Qf6
          • 2...Kb1
            • 3.Qf1#
      • 1...Kc1
        • 2.Qc6+
          • 2...Kb1
            • 3.Qh1#
          • 2...Kd1
            • 3.Qh1#
      • 1...a1Q
        • 2.Qg6+
          • 2...Kc1
            • 3.Qc2#
            • 3.Qg1#
      • 1...a1B
        • 2.Ke2
          • 2...Kc1
            • 3.Qg1#
        • 2.Kd3
          • 2...Kc1
            • 3.Qg1#
        • 2.Qb5
          • 2...Kc1
            • 3.Qf1#
        • 2.Qa6
          • 2...Kc1
            • 3.Qf1#
        • 2.Qf6
          • 2...Kc1
            • 3.Qf1#
        • 2.Qg6+
          • 2...Kc1
            • 3.Qc2#
            • 3.Qg1#
        • 2.Qh6
          • 2...Kc1
            • 3.Qh1#
        • 2.Qb7
          • 2...Kc1
            • 3.Qh1#
      • 1...a1R
        • 2.Kd2
          • threat
            • 3.Qg1#
            • 3.Qg6#
        • 2.Ke2
          • threat
            • 3.Qg1#
          • 2...Kc1
            • 3.Qg1#
        • 2.Qg6+
          • 2...Kc1
            • 3.Qc2#
            • 3.Qg1#
      • 1...a1S!
  • Keys
    • 1.Sa1!
      • 1...Kxa1
        • 2.Qd4
          • 2...Kb1
            • 3.Qd1#
      • 1...Kc1
        • 2.Qc6+
          • 2...Kb1
            • 3.Qh1#
          • 2...Kd1
            • 3.Qh1#

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).