MESON Chess Problem Database

Problem Display
PID: 225352 (5NNk/6np/6R1/8/8/8/8/K7 w - - 0 1)

Simonov, Valentin Anatolovich

Praca, 1997

5NNk/6np/6R1/8/8/8/8/K7

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sh6?
      • 1...Sf5
        • 2.Sf7#
        • 2.Rg8#
      • 1...Sh5
        • 2.Sf7#
        • 2.Rg8#
      • 1...Se6
        • 2.Sf7#
        • 2.Rg8#
      • 1...Se8
        • 2.Sf7#
        • 2.Rg8#
      • 1...hxg6!
    • 1.Se7?
      • 1...Sf5
        • 2.Rg8#
      • 1...Sh5
        • 2.Rg8#
      • 1...Se6
        • 2.Rg8#
      • 1...Se8
        • 2.Rg8#
      • 1...h5
        • 2.Rh6#
      • 1...h6
        • 2.Rxh6#
      • 1...hxg6!
  • Keys
    • 1.Sf6!
      • 1...hxg6
        • 2.Sxg6#
      • 1...Sf5
        • 2.Rg8#
      • 1...Sh5
        • 2.Rg8#
      • 1...Se6
        • 2.Rg8#
      • 1...Se8
        • 2.Rg8#
      • 1...h5
        • 2.Rh6#
      • 1...h6
        • 2.Rxh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Refutation
        • P(b);XR(B)
    • Try
      • S(D);
      • Vars
        • S(a);OGATE::R1(B)
        • P(b);OGATEB::R(B)
        • P(b);OGATEB::R(B),XP(b)
      • Refutation
        • P(b);XR(B)
  • Actual
    • S(D);
    • Vars
      • P(b);XR(B)::S(C),XP(b)
      • S(a);OGATE::R1(B)
      • P(b);OGATEB::R(B)
      • P(b);OGATEB::R(B),XP(b)
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).