MESON Chess Problem Database

Problem Display
PID: 273912 (1B6/4Kp2/6br/R1N1p1nq/Pp1k2P1/1Q1prp2/n3p3/4b3 w - - 0 1)

van Dijk, Johannes

Probleemblad, 1952

1B6/4Kp2/6br/R1N1p1nq/Pp1k2P1/1Q1prp2/n3p3/4b3

#2

7 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Qxd3#
  • Keys
    • 1.Se4!
      • threat
        • 2.Qd5#
      • 1...Kxe4
        • 2.Qc4#
      • 1...Rxe4
        • 2.Ba7#
      • 1...Bxe4
        • 2.Bxe5#
      • 1...Sxe4
        • 2.Rd5#
      • 1...Sc3
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(e);N_GUARD,S_CUTB(l)::QAR1(A),XP(d)
  • Actual
    • S(E);
    • Threat
      • QAR1(A)
    • Vars
      • K(h);N_GUARD,P-FLIGHT,XS(E)::QAR2(A)
      • R(e);SBLOCK,XS(E)::B(G)
      • B(l);SBLOCK,XS(E)::B(G),XP(i)
      • S(j);SBLOCK,XS(E)::R1(D)
      • S(b);N_GUARD,S_CUTB(a)::QAR2(A),XP(g)
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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).