Problem Display
PID: 214825 (4nQ1b/1p6/3pp3/1Bpkp1p1/2Np4/8/1P2N2p/K6b w - - 0 1)

Makaronets, Leonid

Best Problems, 2020

4nQ1b/1p6/3pp3/1Bpkp1p1/2Np4/8/1P2N2p/K6b

#3

6 + 12


SOLUTION


  • SOUND
  • Sets
    • 1...Be4
      • 2.Sb6#
    • 1...Sf6
      • 2.Sg3
        • threat
          • 3.Sb6#
          • 3.Qxd6#
    • 1...Sg7
      • 2.Sg3
        • threat
          • 3.Sb6#
          • 3.Qxd6#
    • 1...d3
      • 2.Sc3+
        • 2...Kd4
          • 3.Qf2#
    • 1...e4
      • 2.Qe7
        • threat
          • 3.Qxb7#
        • 2...Sc7
          • 3.Qxd6#
        • 2...e5
          • 3.Sb6#
          • 3.Qf7#
        • 2...b6
          • 3.Qb7#
      • 2.Qf4
        • threat
          • 3.Sb6#
        • 2...gxf4
          • 3.Sxf4#
        • 2...e5
          • 3.Qf7#
        • 2...b6
          • 3.Sxb6#
  • Tries
    • 1.Sg3?
      • threat
        • 2.Sb6#
      • 1...d3
        • 2.Sb6+
          • 2...Kd4
            • 3.Qf2#
      • 1...e4!
    • 1.Qf2?
      • threat
        • 2.Sb6+
          • 2...Ke4
            • 3.Sg3#
      • 1...Ke4
        • 2.Sg3+
          • 2...Kd3
            • 3.Sxe5#
            • 3.Qd2#
            • 3.Qe2#
          • 2...Kd5
            • 3.Sb6#
      • 1...e4
        • 2.Qf4
          • threat
            • 3.Sb6#
          • 2...gxf4
            • 3.Sxf4#
          • 2...e5
            • 3.Qf7#
          • 2...b6
            • 3.Sxb6#
      • 1...b6
        • 2.Sxb6+
          • 2...Ke4
            • 3.Sg3#
      • 1...Bf3!
    • 1.Qf3+?
      • 1...e4
        • 2.Qf4
          • threat
            • 3.Sb6#
          • 2...gxf4
            • 3.Sxf4#
          • 2...e5
            • 3.Qf7#
          • 2...b6
            • 3.Sxb6#
      • 1...Bxf3!
    • 1.Qf5?
      • threat
        • 2.Sb6#
      • 1...b6
        • 2.Sxb6#
      • 1...exf5!
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sc3+
          • 2...dxc3
            • 3.Qd3#
      • 1...Ke4
        • 2.Sg3+
          • 2...Kd5
            • 3.Sb6#
      • 1...d3
        • 2.Sc3+
          • 2...Kd4
            • 3.Qf2#
      • 1...e4
        • 2.Qf4
          • threat
            • 3.Sb6#
          • 2...gxf4
            • 3.Sxf4#
          • 2...e5
            • 3.Qf7#
          • 2...b6
            • 3.Sxb6#

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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).