Problem Display
PID: 118733 (5kr1/4p1N1/4K3/6P1/8/8/8/Q7 w - - 0 1)

Stepanov, Petr Aleksandrovich

Krasnoe Znamya, 1959

5kr1/4p1N1/4K3/6P1/8/8/8/Q7

#2

4 + 3


5454 Near Snap 2009
6490 yacpdb 2009
  • SOUND
  • Sets
    • 1...Rxg7
      • 2.Qa8#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qa8#
      • 1...Ke8
        • 2.Qa8#
      • 1...Rg6+!
    • 1.Sh5?
      • threat
        • 2.Qa8#
      • 1...Ke8
        • 2.Qa8#
      • 1...Rg6+!
    • 1.Qb2?
      • 1...Rxg7
        • 2.Qb8#
      • 1...Rh8!
    • 1.Qc3?
      • 1...Rxg7
        • 2.Qc8#
      • 1...Rh8!
    • 1.Qd4?
      • 1...Rxg7
        • 2.Qd8#
      • 1...Rh8!
    • 1.Qe5?
      • 1...Rxg7
        • 2.Qb8#
      • 1...Rh8!
    • 1.g6?
      • 1...Rxg7
        • 2.Qa8#
      • 1...Rh8!
  • Keys
    • 1.Qh1!
      • 1...Kxg7
        • 2.Qh6#
      • 1...Rxg7
        • 2.Qa8#
      • 1...Rh8
        • 2.Qxh8#

Anticipated by 18832(1958)



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).