Problem Display
PID: 264660 (3Q3q/br1N1n1b/1Pr1pPn1/1p1Pp3/1PkP4/3N4/KR6/3RB3 w - - 0 1)

Tyunin, Aleksandr Dmitrevich

Zadachi i Etyudi, 2009

3Q3q/br1N1n1b/1Pr1pPn1/1p1Pp3/1PkP4/3N4/KR6/3RB3

#5

12 + 11


SOLUTION


  • SOUND
  • Keys
    • 1.Re2!
      • threat
        • 2.Sb2+
          • 2...Kxd5
            • 3.dxe5#
        • 2.S7xe5+
          • 2...Kxd4
            • 3.Sc1#
            • 3.Sb2#
            • 3.Sf2#
            • 3.Sf4#
            • 3.Sc5#
          • 2...Sgxe5
            • 3.Sb2#
          • 2...Sfxe5
            • 3.Sb2#
        • 2.dxe5
          • threat
            • 3.Sb2#
          • 2...Kd4
            • 3.Sb2#
          • 2...Kxd5
            • 3.Sb2#
      • 1...Kxd5
        • 2.dxe5
          • threat
            • 3.Sb2#
          • 2...Rc2+
            • 3.Sb2+
              • 3...Rd2
                • 4.Sb8+
                  • 4...Qxd8
                    • 5.Rdxd2#
                  • 4...Rd7
                    • 5.Rdxd2#
                  • 4...Sd6
                    • 5.Rdxd2#
                    • 5.Qxd6#
                  • 4...Sxd8
                    • 5.Rdxd2#
          • 2...Rc3
            • 3.Sb8+
              • 3...Qxd8
                • 4.Sb2+
                  • 4...Rd3
                    • 5.Rxd3#
              • 3...Rd7
                • 4.Sb2+
                  • 4...Rd3
                    • 5.Rxd3#
              • 3...Sd6
                • 4.Sb2+
                  • 4...Rd3
                    • 5.Rxd3#
                    • 5.Qxd6#
                • 4.Qxd6+
                  • 4...Kc4
                    • 5.Sb2#
                    • 5.Re4#
                    • 5.Qc5#
              • 3...Sxd8
                • 4.Sb2+
                  • 4...Rd3
                    • 5.Rxd3#
                • 4.Sf4+
                  • 4...Kc4
                    • 5.Re4#
          • 2...Sf4
            • 3.Sxf4+
              • 3...Kc4
                • 4.Rc1+
                  • 4...Kd4
                    • 5.Bf2#
                  • 4...Bc2
                    • 5.Re4#

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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).