MESON Chess Problem Database

Problem Display
PID: 73536 (3Q1rbb/6n1/1Kp5/2p4r/k7/P7/1P1N4/2N5 w - - 0 1)

van Baardwijk, N

Tijdschrift vd KNSB, 1942

3Q1rbb/6n1/1Kp5/2p4r/k7/P7/1P1N4/2N5

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Qa8#
    • 1...Rf2
      • 2.Qa8#
    • 1...Rf3
      • 2.Qa8#
    • 1...Rf4
      • 2.Qa8#
    • 1...Rf5
      • 2.Qa8#
    • 1...Rf6
      • 2.Qa8#
    • 1...Se8
      • 2.Qa8#
  • Keys
    • 1.Se4!
      • threat
        • 2.Sc3#
      • 1...Rh3
        • 2.Sxc5#
      • 1...Rf3
        • 2.Qa8#
      • 1...Sf5
        • 2.Sxc5#
      • 1...Se6
        • 2.Qd1#
      • 1...Se8
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(f);N_GUARD::QAR(F)
    • S(e);S_CUTR(f)::QAR(F)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • R(c);N_GUARD,SBLOCK::S(C),XP(b)
      • R(f);N_GUARD::QAR(F)
      • S(e);S_CUTR(c)::S(C),XP(b)
      • S(e);S_CUTB(g)::QAB(F)
      • S(e);S_CUTR(f)::QAR(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).