Problem Display
PID: 163569 (3qb3/b2n4/B1NRn3/1p6/1Pk5/2Pp3r/1KP5/2N1r1B1 w - - 0 1)

Senkus, Raimondas

Phenix, 1991

3qb3/b2n4/B1NRn3/1p6/1Pk5/2Pp3r/1KP5/2N1r1B1

#4

9 + 10


3713 Snap 2017

SOLUTION


  • SOUND
  • Keys
    • 1.Bb7!
      • threat
        • 2.Sa5+
          • 2...Qxa5
            • 3.Bd5#
      • 1...Sf4
        • 2.Bb6
          • threat
            • 3.Sa5#
            • 3.Rd4#
          • 2...Qxb6
            • 3.Rd4+
              • 3...Qxd4
                • 4.Sa5#
          • 2...Bxb6
            • 3.Sa5+
              • 3...Bxa5
                • 4.Rd4#
      • 1...Sf6
        • 2.Be3
          • threat
            • 3.Se5#
            • 3.cxd3#
          • 2...Rexe3
            • 3.cxd3+
              • 3...Rxd3
                • 4.Se5#
          • 2...Rhxe3
            • 3.Se5+
              • 3...Rxe5
                • 4.cxd3#

Anticipated by 72617(1978)

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).