Problem Display
PID: 125415 (4rk2/4pp1K/8/8/8/8/Q7/4R3 w - - 0 1)

Anonymous

Source?, 0000

4rk2/4pp1K/8/8/8/8/Q7/4R3

#2

3 + 4


3713 Snap 2009
6490 yacpdb 2009
  • SOUND
  • Sets
    • 1...Ra8
      • 2.Qxa8#
    • 1...f5
      • 2.Qg8#
    • 1...f6
      • 2.Qg8#
  • Tries
    • 1.Rf1?
      • threat
        • 2.Rxf7#
        • 2.Qxf7#
      • 1...Ra8
        • 2.Qxf7#
        • 2.Qxa8#
      • 1...Rb8
        • 2.Qxf7#
      • 1...Rc8
        • 2.Qxf7#
      • 1...Rd8
        • 2.Qxf7#
      • 1...f5
        • 2.Rxf5#
        • 2.Qg8#
      • 1...f6
        • 2.Qg8#
      • 1...e6!
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qh6#
      • 1...fxe6
        • 2.Rf1#
      • 1...Ra8
        • 2.Qxe7#
      • 1...Rb8
        • 2.Qxe7#
      • 1...Rc8
        • 2.Qxc8#
        • 2.Qxe7#
      • 1...Rd8
        • 2.Qxe7#
      • 1...f5
        • 2.Qxf5#
        • 2.Qg8#
      • 1...f6
        • 2.Qg8#

This anticipates 22404(1927), 39395(1961)



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).