MESON Chess Problem Database

Problem Display
PID: 56559 (1n6/4pp1B/pN5R/b1P1k3/qnp5/2r1rR2/p1pQb2K/8 w - - 0 1)

Rietveld, Johannes Jacob

4th Comm., Brisbane Courier, 1916-1917

1n6/4pp1B/pN5R/b1P1k3/qnp5/2r1rR2/p1pQb2K/8

#2

7 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Qf4#
    • 1...Re4
      • 2.Rf5#
    • 1...Bd3
      • 2.Qxc3#
    • 1...Sd3
      • 2.Qxe3#
    • 1...Sd5
      • 2.Qxd5#
    • 1...S4c6
      • 2.Qd5#
    • 1...S8c6
      • 2.Sd7#
    • 1...e6
      • 2.Qd6#
  • Tries
    • 1.Rxe3+?
      • 1...Rxe3
        • 2.Qxe3#
      • 1...Kf4!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Qd4#
      • 1...exd6
        • 2.Qxd6#
      • 1...Rcd3
        • 2.Sxc4#
      • 1...Red3
        • 2.Qf4#
      • 1...Re4
        • 2.Rf5#
      • 1...Bd3
        • 2.Qxc3#
      • 1...Sd3
        • 2.Qxe3#
      • 1...Sd5
        • 2.Qxd5#
      • 1...S4c6
        • 2.Qd5#
      • 1...S8c6
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(e);OGATE::QAB1(A)
    • R(e);SBLOCK::R1(C)
    • B(c);S_CUTR(e)::QAB(A),XR(d)
    • S(g);S_CUTR(d)::QAR2(A),XR(e)
    • S(g);N_GUARD::QAR1(A),XS(g)
    • S(g);N_GUARD::QAR1(A)
    • S(n);N_GUARD,S_CUTQ(f)::S(E)
    • P(l);N_GUARD::QAB1(A)
  • Tries
    • Try
      • R(C);CHECK,XR(e)
      • Vars
        • R(d);OGATE,XR(C)::QAR2(A),XR(d)
      • Refutation
        • K(j);S_FLIGHT
  • Actual
    • R(F);
    • Threat
      • QAB1(A)
    • Vars
      • P(l);OGATE,XR(F)::QAB1(A),XP(l)
      • R(d);N_GUARD,S_CUTB(c)::S(E),XP(h)
      • R(e);OGATE::QAB1(A)
      • R(e);SBLOCK::R1(C)
      • B(c);S_CUTR(e)::QAB(A),XR(d)
      • S(g);S_CUTR(d)::QAR2(A),XR(e)
      • S(g);N_GUARD::QAR1(A),XS(g)
      • S(g);N_GUARD::QAR1(A)
      • S(n);N_GUARD,S_CUTQ(f)::S(E)
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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).