Problem Display
PID: 243244 (r2b4/R4p1q/Pp1p1Pbp/8/1Q1p4/3P2P1/p4P1K/kB6 w - - 0 1)

Froberg, Johan Hilding Laurentius

Hultberg, Gustav Herbert

Tidskrift for Schack, 1980

r2b4/R4p1q/Pp1p1Pbp/8/1Q1p4/3P2P1/p4P1K/kB6

#3

9 + 11


SOLUTION


  • SOUND
  • Sets
    • 1...Bc7
      • 2.Bc2
        • threat
          • 3.Qxd4#
    • 1...axb1R
      • 2.Qa3#
  • Tries
    • 1.Bc2?
      • threat
        • 2.Qxd4#
      • 1...Rc8
        • 2.Qxd4+
          • 2...Rc3
            • 3.Qxc3#
      • 1...Bxf6!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Rc1
          • threat
            • 3.Bc2#
            • 3.Qxd4#
          • 2...axb1Q
            • 3.Qa3#
            • 3.Qxb1#
          • 2...axb1S
            • 3.Qa3#
            • 3.Qxb1#
          • 2...axb1B
            • 3.Qa3#
            • 3.Qxb1#
          • 2...axb1R
            • 3.Qa3#
            • 3.Qxb1#
      • 1...Rxa6
        • 2.Rc1
          • threat
            • 3.Bc2#
            • 3.Qxd4#
          • 2...axb1Q
            • 3.Qxb1#
          • 2...axb1S
            • 3.Qxb1#
          • 2...axb1B
            • 3.Qxb1#
          • 2...axb1R
            • 3.Qxb1#
      • 1...Bxd3
        • 2.Rc1
          • threat
            • 3.Bc2#
            • 3.Bxd3#
            • 3.Qxd4#
          • 2...axb1Q
            • 3.Qa3#
          • 2...axb1S
            • 3.Qa3#
          • 2...axb1B
            • 3.Qa3#
          • 2...axb1R
            • 3.Qa3#
      • 1...Bxf6
        • 2.Rc1
          • threat
            • 3.Bc2#
          • 2...axb1Q
            • 3.Qa3#
            • 3.Qxb1#
          • 2...axb1S
            • 3.Qa3#
            • 3.Qxb1#
          • 2...axb1B
            • 3.Qa3#
            • 3.Qxb1#
          • 2...axb1R
            • 3.Qa3#
            • 3.Qxb1#
          • 2...Bg5
            • 3.Qxd4#
      • 1...Bxc7
        • 2.Bc2
          • threat
            • 3.Qxd4#
      • 1...axb1Q
        • 2.Qa3+
          • 2...Qa2
            • 3.Rc1#
      • 1...axb1S
        • 2.Rc2
          • threat
            • 3.Qb2#
      • 1...axb1B
        • 2.Qa3+
          • 2...Ba2
            • 3.Rc1#
      • 1...Rc8
        • 2.Qa3
          • threat
            • 3.Qxa2#
          • 2...Kxb1
            • 3.Qc1#

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).