MESON Chess Problem Database

Problem Display
PID: 55924 (8/1B1pR2r/4b3/Q1bP2pr/3pk2N/8/Kn1R1PPB/4n3 w - - 0 1)

Rietveld, Johannes Jacob

2nd HM., Brisbane Courier, 1913

8/1B1pR2r/4b3/Q1bP2pr/3pk2N/8/Kn1R1PPB/4n3

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.dxe6#
    • 1...Sed3
      • 2.Re2#
    • 1...Sf3
      • 2.gxf3#
    • 1...Sbd3
      • 2.Re2#
    • 1...Sc4
      • 2.d6#
    • 1...d6
      • 2.Rxe6#
  • Tries
    • 1.f3+?
      • 1...Ke3
        • 2.Sf5#
      • 1...Sxf3!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qe5#
      • 1...gxh4
        • 2.Qf4#
      • 1...Bd6
        • 2.dxe6#
      • 1...Sed3
        • 2.Re2#
      • 1...Sf3
        • 2.gxf3#
      • 1...Sbd3
        • 2.Re2#
      • 1...Sc4
        • 2.d6#
      • 1...g4
        • 2.Qf4#
      • 1...d6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(e);S_CUTP(i)::B(I)+P(H),XB(h)
    • S(a);SBLOCK::R(B)
    • S(a);OGATE::P(D),XS(a)
    • S(b);SBLOCK::R(B)
    • S(b);N_PINP(H)::B(I)+P(H)
    • P(i);N_GUARD::R(J),XB(h)
  • Tries
    • Try
      • P(C);CHECK
      • Vars
        • K(d);P-FLIGHT::S(F)
      • Refutation
        • S(a);XP(C)
  • Actual
    • Q(G);
    • Threat
      • QAR1(G)
    • Vars
      • P(f);N_GUARD,XS(F)::QAR1(G)
      • B(e);S_CUTP(i)::B(I)+P(H),XB(h)
      • S(a);SBLOCK::R(B)
      • S(a);OGATE::P(D),XS(a)
      • S(b);SBLOCK::R(B)
      • S(b);N_PINP(H)::B(I)+P(H)
      • P(f);N_GUARD::QAR1(G)
      • P(i);N_GUARD::R(J),XB(h)
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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).