MESON Chess Problem Database

Problem Display
PID: 181768 (NqB4Q/pP6/k4r2/4b3/8/1N6/K4p2/8 w - - 0 1)

Volf, Josef

Nedele, 1905

NqB4Q/pP6/k4r2/4b3/8/1N6/K4p2/8

#2

6 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.b8Q#
      • 2.b8R#
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qa4#
      • 1...Qxa8
        • 2.bxa8S#
      • 1...Qxc8
        • 2.bxc8Q#
        • 2.bxc8B#
      • 1...Rc6
        • 2.Qxc6#
      • 1...Qc7
        • 2.b8S#
      • 1...Rf4
        • 2.Qc6#
      • 1...Bc3
        • 2.Qe2#
      • 1...Bc7
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • Q(f);OGATE::P=Q
  • Actual
    • Q(F);
    • Threat
      • QAR2(F)
    • Vars
      • Q(f);OGATE,XS(D)::PXQ(f)=S
      • Q(f);OGATE,XB(E)::PXQ(f)=Q
      • R(d);N_GUARD::QAR2(F),XR(d)
      • Q(f);OGATE::P=S
      • R(d);N_GUARD::QAR2(F)
      • B(b);OGATE::QAB(F)
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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).