Problem Display
PID: 254536 (8/1K2p3/1p2N2R/2b2kpp/4R1p1/3B2Q1/1qNp3B/4r2b w - - 0 1)

Bouma, Gerhard Johan

Probleemblad, 1983

8/1K2p3/1p2N2R/2b2kpp/4R1p1/3B2Q1/1qNp3B/4r2b

#4

8 + 11


SOLUTION


  • SOUND
  • Keys
    • 1.Ka6!
      • threat
        • 2.Re5#
      • 1...Qa1+
        • 2.Sxa1
          • threat
            • 3.Sg7#
            • 3.Re5#
            • 3.Qe5#
          • 2...Rxa1+
            • 3.Ra4+
              • 3...Be4
                • 4.Sg7#
                • 4.Bxe4#
                • 4.Qe5#
      • 1...Qb5+
        • 2.Kxb5
          • threat
            • 3.Sg7#
            • 3.Re5#
            • 3.Qe5#
          • 2...Rb1+
            • 3.Rb4+
              • 3...Be4
                • 4.Sg7#
                • 4.Bxe4#
                • 4.Qe5#
      • 1...Rxe4
        • 2.Sed4+
          • 2...Qxd4
            • 3.Se3+
              • 3...Qxe3
                • 4.Qe5#
          • 2...Bxd4
            • 3.Qe5+
              • 3...Bxe5
                • 4.Se3#
      • 1...Bxe4
        • 2.Scd4+
          • 2...Qxd4
            • 3.Qf2+
              • 3...Qxf2
                • 4.Sg7#
          • 2...Bxd4
            • 3.Sg7+
              • 3...Bxg7
                • 4.Qf2#

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).