MESON Chess Problem Database

Problem Display
PID: 159274 (4NkNr/2RpnP1p/2p4P/2p1p2K/2B5/2B2R2/8/8 w - - 0 1)

Morse, Christopher Jeremy

The Problemist Supplement, 2016

4NkNr/2RpnP1p/2p4P/2p1p2K/2B5/2B2R2/8/8

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg8
      • 2.fxg8Q#
      • 2.fxg8R#
    • 1...e4
      • 2.Bg7#
  • Tries
    • 1.Sef6?
      • threat
        • 2.Sxd7#
      • 1...d5
        • 2.Sd7#
      • 1...d6
        • 2.Sd7#
      • 1...Sxg8!
    • 1.Sg7?
      • 1...Rxg8
        • 2.fxg8Q#
        • 2.fxg8R#
      • 1...Sxg8
        • 2.fxg8S#
      • 1...Sd5
        • 2.Rc8#
      • 1...Sf5
        • 2.Rc8#
      • 1...Sg6
        • 2.Rc8#
      • 1...Sc8
        • 2.Rxc8#
      • 1...d5
        • 2.Se6#
      • 1...d6
        • 2.Se6#
      • 1...e4!
  • Keys
    • 1.Sd6!
      • 1...Rxg8
        • 2.fxg8Q#
        • 2.fxg8R#
      • 1...Sxg8
        • 2.fxg8S#
      • 1...Sd5
        • 2.Rc8#
      • 1...Sf5
        • 2.Rc8#
      • 1...Sg6
        • 2.Rc8#
      • 1...Sc8
        • 2.Rxc8#
      • 1...e4
        • 2.Bg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(h);OGATE,XS(I)::PXR(h)=Q
    • P(b);OGATE::B(A)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(H),XP(d)
      • Vars
        • P(d);::S(H)
      • Refutation
        • S(e);XS(I)
    • Try
      • S(H);
      • Vars
        • R(h);OGATE,XS(I)::PXR(h)=Q
        • S(e);OGATE,XS(I)::PXS(e)=S
        • S(e);N_GUARD::R(F)
        • S(e);N_GUARD::R(F),XS(e)
        • P(d);N_GUARD::S(H)
      • Refutation
        • P(b);
  • Actual
    • S(H);
    • Vars
      • R(h);OGATE,XS(I)::PXR(h)=Q
      • S(e);OGATE,XS(I)::PXS(e)=S
      • S(e);N_GUARD::R(F)
      • S(e);N_GUARD::R(F),XS(e)
      • P(b);OGATE::B(A)
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).