MESON Chess Problem Database

Problem Display
PID: 69404 (8/1N6/5p2/3pk1qR/K4b2/3pNP1B/5B2/6Q1 w - - 0 1)

Markx, BJM

Tijdschrift vd NSB, 1897

8/1N6/5p2/3pk1qR/K4b2/3pNP1B/5B2/6Q1

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qa1#
  • Keys
    • 1.Qe1!
      • threat
        • 2.Sc4#
      • 1...Kd4
        • 2.Qa1#
      • 1...Bxe3
        • 2.Qxe3#
      • 1...Bh2
        • 2.Sg2#
      • 1...Bg3
        • 2.Sg2#
      • 1...f5
        • 2.Sg4#
      • 1...d4
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINQ(e),S_FLIGHT::QAB(A)
  • Actual
    • Q(A);
    • Threat
      • QAR(A)+S(C),DCHECK
    • Vars
      • K(d);N_SPINQ(e),S_FLIGHT::QAB(A)
      • B(b);OGATE,P_SPINB(b),XS(C)::QAR2(A),XB(b)
      • B(b);N_GUARD::QAR(A)+S(C)
      • P(f);N_SPINQ(e),SBLOCK::QAR(A)+S(C),DCHECK
      • P(c);OGATEB,SBLOCK::QAR(A)
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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).