MESON Chess Problem Database

Problem Display
PID: 198341 (1K1N1R1q/1n5p/1Q1P4/p2pkP2/7R/8/5P2/bb6 w - - 0 1)

Niemeijer, Meindert

Rostra Gymnasiorum, 1920

1K1N1R1q/1n5p/1Q1P4/p2pkP2/7R/8/5P2/bb6

#2

8 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.f4#
    • 1...Sxd6
      • 2.Sc6#
  • Keys
    • 1.d7!
      • threat
        • 2.Qe6#
      • 1...Bxf5
        • 2.Sf7#
      • 1...Sxd8
        • 2.Qc7#
      • 1...Qf6
        • 2.Qxf6#
      • 1...Qg8
        • 2.Qf6#
      • 1...Be4
        • 2.f4#
      • 1...Sc5
        • 2.Qc7#
      • 1...Sd6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::P(A)
    • S(f);SBLOCK,XP(E)::S(G)
  • Actual
    • P(E);
    • Threat
      • QAR1(D)
    • Vars
      • B(b);SBLOCK,XP(C)::S(G)
      • S(f);N_GUARD,XS(G)::QAB(D)
      • Q(h);N_GUARD::QAB1(D),XQ(h)
      • Q(h);N_GUARD::QAB1(D)
      • B(b);SBLOCK::P(A)
      • S(f);N_GUARD::QAB(D)
      • S(f);SBLOCK::S(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).