MESON Chess Problem Database

Problem Display
PID: 177777 (8/q1r4p/3p3K/3BkNPp/4PR2/7r/4N3/8 w - - 0 1)

Kovalev, Sergey Valentinovich

Sahs (Latvia), 1982

8/q1r4p/3p3K/3BkNPp/4PR2/7r/4N3/8

#2

7 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Se3?
      • threat
        • 2.Rf5#
      • 1...Rf7
        • 2.Sc4#
      • 1...Rf3!
  • Keys
    • 1.Sfd4!
      • threat
        • 2.Rf5#
      • 1...Rf3
        • 2.Sxf3#
      • 1...Rf7
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(C)
      • Vars
        • R(f);N_GUARD::S(E)
      • Refutation
        • R(a);
  • Actual
    • S(E);
    • Threat
      • R1(C)
    • Vars
      • R(a);N_GUARD::S(E),XR(a)
      • R(f);N_GUARD::S(E)
HTML5 logo

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).