MESON Chess Problem Database

Problem Display
PID: 195760 (4Rq2/p1p1br2/r5Q1/p1Rn1n1N/4kPp1/K1Pp1b2/8/1B1N2B1 w - - 0 1)

Rietveld, Johannes Jacob

Haagsche Post, 1922

4Rq2/p1p1br2/r5Q1/p1Rn1n1N/4kPp1/K1Pp1b2/8/1B1N2B1

#2

10 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Rc4#
    • 1...Re6
      • 2.Qxe6#
    • 1...Sxc3
      • 2.Sxc3#
    • 1...Se3
      • 2.Sf2#
    • 1...Sb4
      • 2.Re5#
    • 1...Sxf4
      • 2.Sg3#
    • 1...Sb6
      • 2.Qe6#
    • 1...Sf6
      • 2.Qxf5#
    • 1...c6
      • 2.Qe6#
  • Tries
    • 1.Rxe7+?
      • 1...Re6
        • 2.Rc4#
        • 2.Rxe6#
        • 2.Qxe6#
      • 1...Rxe7
        • 2.Rc4#
      • 1...Sxe7
        • 2.Re5#
      • 1...Qxe7!
  • Keys
    • 1.Ba2!
      • threat
        • 2.Bxd5#
      • 1...Sxc3
        • 2.Sxc3#
      • 1...Sxf4
        • 2.Sg3#
      • 1...d2
        • 2.Bb1#
      • 1...Rd6
        • 2.Rc4#
      • 1...Se3
        • 2.Sf2#
      • 1...Sb4
        • 2.Re5#
      • 1...Sb6
        • 2.Qe6#
      • 1...Sf6
        • 2.Qxf5#
      • 1...c6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(h);N_PINR(G)::R(G)
    • R(h);N_GUARD,N_SPINB(k)::QAR2(I),XR(h)
    • S(f);XP(E)::S(B),XS(f)
    • S(f);SBLOCK::S(B)
    • S(f);N_PINR(G)::R1(G)
    • S(f);SBLOCK,XP(F)::S(H)
    • S(f);S_CUTR(h)::QAR2(I)
    • S(f);S_CUTR(l)::QAB1(I),XS(g)
    • P(j);S_CUTR(h)::QAR2(I)
  • Tries
    • Try
      • R(J);CHECK,N_SPINR(G),XB(k)
      • Vars
        • R(l);XR(J)::R(G)
        • S(f);OGATE,XR(J)::R1(G)
      • Refutation
        • Q(m);P_PINR(G),XR(J)
  • Actual
    • B(A);N_PINP(a)
    • Threat
      • B(A),XS(f)
    • Vars
      • S(f);XP(E)::S(B),XS(f)
      • S(f);SBLOCK,XP(F)::S(H)
      • P(a);OGATEB::B(A)
      • R(h);N_PINR(G)::R(G)
      • S(f);SBLOCK::S(B)
      • S(f);N_PINR(G)::R1(G)
      • S(f);S_CUTR(h)::QAR2(I)
      • S(f);S_CUTR(l)::QAB1(I),XS(g)
      • P(j);S_CUTR(h)::QAR2(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).