Problem Display
PID: 184661 (3b2br/4p3/4N2p/1K1kB3/2p2PQ1/5Pn1/2P2r2/8 w - - 0 1)

Jewetsky, Feodor Orestovich

125 Shakhmaty Zadachi (Eventski), 1908

3b2br/4p3/4N2p/1K1kB3/2p2PQ1/5Pn1/2P2r2/8

#3

7 + 9


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Bc7
      • 2.Sxc7#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Qd7#
      • 1...Bc7
        • 2.Qd7+
          • 2...Bd6
            • 3.Qc6#
            • 3.Qb7#
      • 1...Sf5
        • 2.Qxf5
          • threat
            • 3.Qe4#
            • 3.Qd7#
      • 1...e6!
    • 1.Sg5?
      • threat
        • 2.Qd7#
      • 1...Bc7
        • 2.Qd7+
          • 2...Bd6
            • 3.Qc6#
            • 3.Qb7#
      • 1...Sf5
        • 2.Qxf5
          • threat
            • 3.Qe4#
            • 3.Qd7#
      • 1...e6!
    • 1.f5?
      • threat
        • 2.Qd4#
      • 1...Sxf5
        • 2.Qxf5
          • threat
            • 3.Sf4#
            • 3.Bh2#
            • 3.Bg3#
            • 3.Bf4#
            • 3.Bc7#
            • 3.Bb8#
          • 2...Bxe6
            • 3.Qe4#
      • 1...Rd2
        • 2.Bxg3
          • threat
            • 3.Qxc4#
            • 3.Qe4#
          • 2...Rd4
            • 3.Qxd4#
      • 1...Bb6
        • 2.Bxg3
          • threat
            • 3.Qxc4#
            • 3.Qe4#
      • 1...Kxe5!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Sc7+
          • 2...Bxc7
            • 3.Qc6#
      • 1...Bxe6
        • 2.Qd3+
          • 2...cxd3
            • 3.c4#
      • 1...Ba5
        • 2.Sc7+
          • 2...Bxc7
            • 3.Qc6#
      • 1...Bb6
        • 2.Sc7+
          • 2...Bxc7
            • 3.Qc6#

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).