Problem Display
PID: 266913 (4r3/5p2/1pR1p1p1/nK1P4/1p1Pk1P1/3N1NpB/2PPPb2/1b2r3 w - - 0 1)

Gorbatenko, Yuri Grigorevich

Pankratiev, Aleksandr Nikolaevich

Shakhmatnaya kompozitsiya, 2022

4r3/5p2/1pR1p1p1/nK1P4/1p1Pk1P1/3N1NpB/2PPPb2/1b2r3

#4

11 + 12


SOLUTION


  • SOUND
  • Keys
    • 1.Bg2!
      • threat
        • 2.Sfe5+
          • 2...Kxd4
            • 3.Rc4+
              • 3...Sxc4
                • 4.Sc6#
      • 1...exd5
        • 2.Rf6
          • threat
            • 3.Rf4#
          • 2...Be3
            • 3.Sc5+
              • 3...bxc5
                • 4.d3#
          • 2...g5
            • 3.Sh4+
              • 3...Kxd4
                • 4.Sf5#
      • 1...Rg1
        • 2.Sxg1+
          • 2...Kxd4
            • 3.e3+
              • 3...Bxe3
                • 4.Se2#
      • 1...Rc8
        • 2.Rxe6+
          • 2...fxe6
            • 3.Sg5+
              • 3...Kxd4
                • 4.Sxe6#
      • 1...Ba2
        • 2.Sfxe1+
          • 2...Kxd4
            • 3.c3+
              • 3...bxc3
                • 4.Sc2#
      • 1...Be3
        • 2.Sfxe1+
          • 2...Kxd4
            • 3.c3+
              • 3...bxc3
                • 4.dxc3#
        • 2.Sg1+
          • 2...Kxd4
            • 3.c3+
              • 3...bxc3
                • 4.dxc3#
        • 2.Sh2+
          • 2...Kxd4
            • 3.c3+
              • 3...bxc3
                • 4.dxc3#
        • 2.Sh4+
          • 2...Kxd4
            • 3.c3+
              • 3...bxc3
                • 4.dxc3#
        • 2.Sfe5+
          • 2...Kxd4
            • 3.Rc4+
              • 3...Sxc4
                • 4.Sc6#
            • 3.c3+
              • 3...bxc3
                • 4.dxc3#
        • 2.Sg5+
          • 2...Kxd4
            • 3.c3+
              • 3...bxc3
                • 4.dxc3#
      • 1...e5
        • 2.Sfxe5+
          • 2...Kxd4
            • 3.Rc4+
              • 3...Sxc4
                • 4.Sc6#

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).