MESON Chess Problem Database

Problem Display
PID: 219157 (5K1n/4N3/5N1p/3p1p1P/Rn2bk1B/b1Q1R3/1ppr2p1/2r1q3 w - - 0 1)

Rietveld, Johannes Jacob

British Chess Magazine, 1923

5K1n/4N3/5N1p/3p1p1P/Rn2bk1B/b1Q1R3/1ppr2p1/2r1q3

#2

8 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Sexd5#
      • 2.Qe5#
    • 1...Bf3
      • 2.Rxf3#
      • 2.Qe5#
    • 1...Sa2
      • 2.Rf3#
    • 1...Sa6
      • 2.Rf3#
    • 1...Sc6
      • 2.Rf3#
    • 1...Sg6+
      • 2.Sxg6#
    • 1...Sf7
      • 2.Sg6#
  • Keys
    • 1.Rg3!
      • threat
        • 2.Qc7#
      • 1...Sg6+
        • 2.Sxg6#
      • 1...Qxg3
        • 2.Qxg3#
      • 1...Bd3
        • 2.Sexd5#
      • 1...Bf3
        • 2.Rxf3#
      • 1...Sa2
        • 2.Rf3#
      • 1...Sd3
        • 2.Sxd5#
      • 1...Sa6
        • 2.Rf3#
      • 1...Sc6
        • 2.Rf3#
      • 1...Sf7
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(h);P_PINS(G),P_SPINB(i)::R1(B)
    • S(n);CHECK,N_GUARD::S(G),XS(n)
    • S(n);N_GUARD::S(G)
  • Actual
    • R(B);
    • Threat
      • QAB(A)
    • Vars
      • S(n);CHECK,N_GUARD::S(G),XS(n)
      • Q(b);OGATE,XR(B)::QAB1(A),XQ(b)
      • B(i);N_GUARD,P_SPINS(h),S_CUTR(e)::S(G),XP(k)
      • B(i);N_GUARD,P_SPINS(h)::R1(B),XB(i)
      • S(h);P_PINS(G),P_SPINB(i)::R1(B)
      • S(h);N_GUARD,P_PINS(G),P_SPINB(i),S_CUTR(e)::S(F),XP(k)
      • S(n);N_GUARD::S(G)
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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).