MESON Chess Problem Database

Problem Display
PID: 254626 (4Nr2/2R2n2/1p2N3/q4pRb/2P1kpB1/r1b2n2/P1Pp1BP1/3K4 w - - 0 1)

Brummelman, Derk Hendrikus (AKA Bruma, DH)

Probleemblad, 1946

4Nr2/2R2n2/1p2N3/q4pRb/2P1kpB1/r1b2n2/P1Pp1BP1/3K4

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.gxf3#
    • 1...Be5
      • 2.Bxf5#
    • 1...S3e5
      • 2.Sf6#
    • 1...S7e5
      • 2.Sd6#
  • Keys
    • 1.Re7!
      • threat
        • 2.Sc5#
      • 1...Ke5
        • 2.Sd4#
        • 2.Sc5#
        • 2.S6c7#
        • 2.S6g7#
        • 2.Sd8#
        • 2.Sxf8#
      • 1...Qc5
        • 2.Sxc5#
      • 1...Qe5
        • 2.gxf3#
      • 1...Be5
        • 2.Bxf5#
      • 1...S3e5
        • 2.Sf6#
      • 1...S7e5
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(g);SBLOCK::P(E),XS(d)
    • B(c);SBLOCK,S_CUTQ(g)::B(G),XP(h)
    • S(d);P_PINB(G),SBLOCK,S_CUTB(c)::S(K)
    • S(k);N_GUARD,SBLOCK::S(K)
  • Actual
    • R(J);
    • Threat
      • R(J)+S(I),DCHECK
    • Vars
      • Q(g);::R(J)+S(I),DCHECK,XQ(g)
      • Q(g);SBLOCK::P(E),XS(d)
      • B(c);SBLOCK,S_CUTQ(g)::B(G),XP(h)
      • S(d);P_PINB(G),SBLOCK,S_CUTB(c)::S(K)
      • S(k);N_GUARD,SBLOCK::S(K)
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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).