Problem Display
PID: 213929 (2r4B/r3p2p/p2pP3/3k1P2/Q3N1p1/2p2P2/4P3/2K5 w - - 0 1)

Gulyaev, Aleksandr Pavlovich (aka Grin, AP)

3rd Prize, Tikhookeanskaya Zvezda, 1928

2r4B/r3p2p/p2pP3/3k1P2/Q3N1p1/2p2P2/4P3/2K5

#3

8 + 9


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sf6+
        • 2...Ke5
          • 3.Qe4#
        • 2...exf6
          • 3.Qe4#
    • 1...Rc6
      • 2.Qd4#
    • 1...Ra8
      • 2.Sxc3+
        • 2...Kc5
          • 3.Bd4#
    • 1...Rb8
      • 2.Sxc3+
        • 2...Kc5
          • 3.Bd4#
    • 1...Rd8
      • 2.Sxc3+
        • 2...Kc5
          • 3.Bd4#
    • 1...Re8
      • 2.Sxc3+
        • 2...Kc5
          • 3.Bd4#
    • 1...Rf8
      • 2.Sxc3+
        • 2...Kc5
          • 3.Bd4#
    • 1...Rg8
      • 2.Sxc3+
        • 2...Kc5
          • 3.Bd4#
    • 1...a5
      • 2.Qb5+
        • 2...Rc5
          • 3.Sxc3#
  • Tries
    • 1.Sf2?
      • threat
        • 2.e4+
          • 2...Kc5
            • 3.Bd4#
      • 1...Kc5
        • 2.Bd4+
          • 2...Kd5
            • 3.e4#
      • 1...Rxh8
        • 2.Sd3
          • threat
            • 3.Qe4#
            • 3.e4#
      • 1...Rc4!
    • 1.Sxc3+?
      • 1...Kc5
        • 2.Bd4#
      • 1...Rxc3+!
    • 1.Qb5+?
      • 1...Rc5
        • 2.Sxc3#
      • 1...axb5!
  • Keys
    • 1.Sc5!
      • threat
        • 2.e4+
          • 2...Kxc5
            • 3.Bd4#
      • 1...Kxc5
        • 2.Bd4+
          • 2...Kd5
            • 3.e4#
      • 1...Rxh8
        • 2.Sd3
          • threat
            • 3.Qe4#
            • 3.e4#
      • 1...dxc5
        • 2.Qe4+
          • 2...Kd6
            • 3.Be5#

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).