Problem Display
PID: 228705 (B7/p1Kb4/2p5/R4nN1/2kpp3/Pp1n4/1p1Q2Rr/1qr2N2 w - - 0 1)

Marandiuk, Mikhail Nazarovich

1/2 Prize, StrateGems, 2020

B7/p1Kb4/2p5/R4nN1/2kpp3/Pp1n4/1p1Q2Rr/1qr2N2

#4

8 + 13


SOLUTION


  • SOUND
  • Keys
    • 1.Sf7!
      • threat
        • 2.Qb4+
          • 2...Sxb4
            • 3.Se5+
              • 3...Kc3
                • 4.Rc5#
      • 1...Sc5
        • 2.Rxc5+
          • 2...Kxc5
            • 3.Qa5+
              • 3...Kc4
                • 4.Se5#
      • 1...Rc3
        • 2.Qxd3+
          • 2...Rxd3
            • 3.Se5+
              • 3...Kc3
                • 4.Rc5#
      • 1...Be6
        • 2.Rc5+
          • 2...Kxc5
            • 3.Qa5+
              • 3...Kc4
                • 4.Sd2#
          • 2...Sxc5
            • 3.Qb4+
              • 3...Kd3
                • 4.Se5#
              • 3...Kd5
                • 4.Bxc6#
      • 1...c5
        • 2.Se5+
          • 2...Sxe5
            • 3.Rxc5+
              • 3...Kxc5
                • 4.Qb4#

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).