MESON Chess Problem Database

Problem Display
PID: 194933 (1rb5/B3p3/1q1N3K/R2B2Q1/P2kP3/2p2P2/1r1b2n1/3RN3 w - - 0 1)

Rietveld, Johannes Jacob

1st Prize, Tijdschrift vd NSB, 1918

1rb5/B3p3/1q1N3K/R2B2Q1/P2kP3/2p2P2/1r1b2n1/3RN3

#2

11 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qc5
      • 2.Bxc5#
  • Keys
    • 1.Bb3!
      • threat
        • 2.Rd5#
      • 1...Sf4
        • 2.Qg1#
      • 1...c2
        • 2.Qxd2#
      • 1...Qc5
        • 2.Bxc5#
      • 1...Be6
        • 2.Sb5#
      • 1...Bb7
        • 2.Bxb6#
      • 1...Se3
        • 2.Qe5#
      • 1...e6
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • Q(f);N_PINS(I),OGATE::B(K),XQ(f)
  • Actual
    • B(G);
    • Threat
      • R1(F)
    • Vars
      • S(c);N_PINQ(H)::QAB(H)
      • P(d);N_GUARD,S_CUTR(a)::QAR2(H),XB(b)
      • Q(f);N_PINS(I),OGATE::B(K),XQ(f)
      • B(i);N_PINS(I)::S(I)
      • B(i);S_CUTR(h)::B(K),XQ(f)
      • S(c);N_PINQ(H),SBLOCK::QAB1(H)
      • P(g);N_PINS(I)::S(I)
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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).