MESON Chess Problem Database

Problem Display
PID: 28645 (1n6/2P1k1K1/RNnN4/5p1b/6p1/5r2/B7/3R4 w - - 0 1)

Groeneveld, Cornelis

The Problemist, 2001

1n6/2P1k1K1/RNnN4/5p1b/6p1/5r2/B7/3R4

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Be8
      • 2.Sdc8#
    • 1...Sd8
      • 2.c8S#
    • 1...Sd7
      • 2.Sbc8#
  • Keys
    • 1.c8Q!
      • threat
        • 2.Qf8#
      • 1...Rb3
        • 2.Sxf5#
      • 1...Be8
        • 2.Qxe8#
      • 1...Sd8
        • 2.Sd5#
      • 1...Sd7
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(d);SBLOCK::S(E)
    • S(e);SBLOCK::P=S
    • S(g);SBLOCK::S(D)
  • Actual
    • P(F);
    • Threat
      • QAB1(F)
    • Vars
      • R(a);N_GUARD::S(E),XP(c)
      • B(d);N_GUARD::QAR1(F),XB(d)
      • S(e);::S(D)
      • S(g);N_GUARD::QAR1(F),XS(g)
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).