Problem Display
PID: 220253 (8/1K1Q4/p2N4/8/B2n4/8/8/k7 w - - 0 1)

Froberg, Johan Hilding Laurentius

Suomen Shakki, 1973

8/1K1Q4/p2N4/8/B2n4/8/8/k7

#3

4 + 3


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.Sc4!
      • threat
        • 2.Qxd4+
          • 2...Kb1
            • 3.Qb2#
          • 2...Ka2
            • 3.Qb2#
      • 1...Kb1
        • 2.Qxd4
          • threat
            • 3.Qb2#
          • 2...Kc1
            • 3.Qa1#
            • 3.Qg1#
            • 3.Qb2#
            • 3.Qd1#
          • 2...Ka2
            • 3.Qb2#
      • 1...Ka2
        • 2.Qxd4
          • threat
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
      • 1...Sc2
        • 2.Bxc2
          • threat
            • 3.Qa4#
          • 2...Ka2
            • 3.Qa4#
      • 1...Se2
        • 2.Qd2
          • threat
            • 3.Qb2#
          • 2...Kb1
            • 3.Qb2#
      • 1...Sb3
        • 2.Bxb3
          • threat
            • 3.Qd1#
          • 2...Kb1
            • 3.Qd1#
      • 1...Sf3
        • 2.Bc2
          • threat
            • 3.Qa4#
          • 2...Ka2
            • 3.Qa4#
        • 2.Qd1+
          • 2...Ka2
            • 3.Bb3#
      • 1...Sb5
        • 2.Qd1+
          • 2...Ka2
            • 3.Bb3#
      • 1...Sf5
        • 2.Qd1+
          • 2...Ka2
            • 3.Bb3#
      • 1...Sc6
        • 2.Qd1+
          • 2...Ka2
            • 3.Bb3#
      • 1...Se6
        • 2.Qd1+
          • 2...Ka2
            • 3.Bb3#

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).