Problem Display
PID: 209450 (4B3/K2N2b1/NQ1pp3/PP1p2r1/kBp5/1p6/8/5bq1 w - - 0 1)

Gulyaev, Aleksandr Pavlovich (aka Grin, AP)

1st HM., Shakhmaty, 1926

4B3/K2N2b1/NQ1pp3/PP1p2r1/kBp5/1p6/8/5bq1

#3

8 + 10


6490 yacpdb 2020

SOLUTION


  • COOKED
  • Sets
    • 1...Qxb6+
      • 2.Sxb6#
  • Tries
    • 1.Qxg1?
      • threat
        • 2.Sb6#
      • 1...Bd4+
        • 2.Sdc5+
          • 2...Bxc5+
            • 3.b6#
          • 2...dxc5
            • 3.b6#
      • 1...b2!
    • 1.Qf2?
      • threat
        • 2.Sb6#
      • 1...Bd4+
        • 2.Sdc5+
          • 2...Bxc5+
            • 3.b6#
          • 2...dxc5
            • 3.b6#
      • 1...b2
        • 2.Sdc5+
          • 2...dxc5
            • 3.Qc2#
      • 1...Qxf2+!
    • 1.Qc5?
      • threat
        • 2.Sb6#
      • 1...Qxc5+
        • 2.Sdxc5+
          • 2...dxc5
            • 3.b6#
      • 1...b2!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Sb6#
      • 1...Qxe3+
        • 2.b6
          • threat
            • 3.Sdc5#
            • 3.Se5#
            • 3.Sf6#
            • 3.Sdb8#
            • 3.Sf8#
          • 2...Qxb6+
            • 3.Sxb6#
          • 2...Kb5
            • 3.Sdc5#
            • 3.Se5#
            • 3.Sf6#
            • 3.Sdb8#
            • 3.Sf8#
          • 2...Qc5
            • 3.Sdxc5#
      • 1...Bd4+
        • 2.Sdc5+
          • 2...Bxc5+
            • 3.b6#
          • 2...dxc5
            • 3.b6#
    • 1.Qd4!
      • threat
        • 2.Sb6#
      • 1...Qxd4+
        • 2.b6
          • threat
            • 3.Sdc5#
            • 3.Se5#
            • 3.Sf6#
            • 3.Sdb8#
            • 3.Sf8#
          • 2...Qxb6+
            • 3.Sxb6#
          • 2...Kb5
            • 3.Sdc5#
            • 3.Se5#
            • 3.Sf6#
            • 3.Sdb8#
            • 3.Sf8#
          • 2...Qc5
            • 3.Sdxc5#
      • 1...Bxd4+
        • 2.Sdc5+
          • 2...Bxc5+
            • 3.b6#
          • 2...dxc5
            • 3.b6#
      • 1...b2
        • 2.Sdc5+
          • 2...dxc5
            • 3.Qd1#

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).