MESON Chess Problem Database

Problem Display
PID: 87682 (1r3n2/r1n3Pp/3N1Bpk/p7/5N2/1b4P1/8/K7 w - - 0 1)

Mortensen, Jan Robert (aka 'Adamas')

Problemista, 1966

1r3n2/r1n3Pp/3N1Bpk/p7/5N2/1b4P1/8/K7

#2

6 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb4
      • 2.gxf8Q#
      • 2.gxf8B#
    • 1...Rb5
      • 2.gxf8Q#
      • 2.gxf8B#
    • 1...Rb6
      • 2.gxf8Q#
      • 2.gxf8B#
    • 1...Rb7
      • 2.gxf8Q#
      • 2.gxf8B#
    • 1...Bd1
      • 2.Sf7#
      • 2.g8S#
    • 1...Bc2
      • 2.Sf7#
      • 2.g8S#
    • 1...Ba4
      • 2.Sf7#
      • 2.g8S#
    • 1...Bf7
      • 2.Sxf7#
    • 1...Sd5
      • 2.g8S#
    • 1...Sce6
      • 2.g8S#
    • 1...Sfe6
      • 2.Sf7#
    • 1...g5
      • 2.Sf5#
  • Keys
    • 1.g4!
      • threat
        • 2.g5#
      • 1...Rb5
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Sce6
        • 2.g8S#
      • 1...Sfe6
        • 2.Sf7#
      • 1...g5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(h);N_GUARD::PXS(i)=Q
    • B(a);N_GUARD::S(D),XB(a)
    • S(f);S_CUTB(a)::P=S
    • S(i);S_CUTB(a)::S(D)
    • P(c);N_GUARD::S(D)
  • Actual
    • P(B);
    • Threat
      • P(B)
    • Vars
      • R(h);N_GUARD::PXS(i)=Q
      • S(f);S_CUTB(a)::P=S
      • S(i);S_CUTB(a)::S(D)
      • P(c);N_GUARD::S(D)
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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).