MESON Chess Problem Database

Problem Display
PID: 196901 (5B2/5p2/rp3N2/3p1K2/3k1p1Q/1R1P3p/5P1q/3r4 w - - 0 1)

van Beek, Huibrecht

Tijdschrift vd NSB, 1919

5B2/5p2/rp3N2/3p1K2/3k1p1Q/1R1P3p/5P1q/3r4

#2

7 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Qxf4#
    • 1...Qxf2
      • 2.Qxf2#
  • Keys
    • 1.Se4!
      • threat
        • 2.Qf6#
      • 1...Qxf2
        • 2.Qxf2#
      • 1...Rxd3
        • 2.Rb4#
      • 1...dxe4
        • 2.Qd8#
      • 1...f3
        • 2.Sg3#
      • 1...b5
        • 2.Bc5#
      • 1...f6
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • Q(b);N_GUARD::QAR2(D),XP(e)
    • Q(b);OGATE,XP(A)::QAB(D),XQ(b)
  • Actual
    • S(F);N_PINP(e)
    • Threat
      • QAB(D)
    • Vars
      • Q(b);OGATE,XP(A)::QAB(D),XQ(b)
      • R(a);SBLOCK,XP(C)::R(B)
      • P(f);OGATEB,XS(F)::QAR(D)
      • P(e);::QAR(D)+S(F)
      • P(h);N_GUARD::B(G)
      • P(i);::QAB(D),XP(i)
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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).