MESON Chess Problem Database

Problem Display
PID: 182305 (bn3b2/2Q1pB2/4PP1p/3k4/2p5/4K3/2PP4/8 w - - 0 1)

van Dijk, Johannes

Schaakbladet, 1906

bn3b2/2Q1pB2/4PP1p/3k4/2p5/4K3/2PP4/8

#2

7 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...exf6
      • 2.e7#
  • Keys
    • 1.d4!
      • threat
        • 2.Qc5#
      • 1...exf6
        • 2.e7#
      • 1...cxd4 ep
        • 2.c4#
      • 1...Bc6
        • 2.Qe5#
      • 1...Sa6
        • 2.Qd7#
      • 1...Sc6
        • 2.Qd7#
      • 1...Sd7
        • 2.Qxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATE,XP(E)::B(G)+P(D)
  • Actual
    • P(B);
    • Threat
      • QAR1(F)
    • Vars
      • P(d);OGATE,XP(E)::B(G)+P(D)
      • P(a);EP,OGATE,XP(B)::P(A)
      • B(e);SBLOCK::QAR1(F)
      • S(f);N_GUARD::QAR2(F)
      • S(f);N_GUARD::QAR2(F),XS(f)
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).