MESON Chess Problem Database

Problem Display
PID: 256825 (1K6/4PPn1/2Nk2bN/1pp1p2r/1P4Q1/4R1n1/5r1B/6bB w - - 0 1)

Hartong, Jan

Probleemblad, 1947

1K6/4PPn1/2Nk2bN/1pp1p2r/1P4Q1/4R1n1/5r1B/6bB

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Rxd3#
  • Tries
    • 1.Qxg6+?
      • 1...Kd7
        • 2.Rd3#
      • 1...Se6
        • 2.Rd3#
      • 1...Rf6!
  • Keys
    • 1.f8S!
      • threat
        • 2.Qd7#
      • 1...Rxf8+
        • 2.exf8Q#
        • 2.exf8B#
      • 1...cxb4
        • 2.Qxb4#
      • 1...Rff5
        • 2.Qd1#
      • 1...Rhf5
        • 2.Rd3#
      • 1...Bf5
        • 2.Sf7#
      • 1...Be8
        • 2.Rd3#
      • 1...S3f5
        • 2.Bxe5#
      • 1...S7f5
        • 2.Qxg6#
      • 1...Se6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • B(i);N_GUARD::R(C),XB(i)
  • Tries
    • Try
      • Q(E);CHECK,XB(i)
      • Vars
        • K(h);P-FLIGHT::R(C)
        • S(j);P_SPINS(j)::R(C)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • P(I);
    • Threat
      • QAR1(E)
    • Vars
      • R(b);CHECK,OGATE,XS(I)::PXR(b)=Q
      • P(e);OGATE,XP(D)::QAB(E),XP(e)
      • R(b);N_GUARD,S_CUTB(i)::QAR(E)
      • R(g);S_CUTB(i)::R(C)
      • B(i);N_GUARD,S_CUTR(b)::S(G)
      • B(i);N_GUARD::R(C)
      • S(c);OGATE,P_SPINP(f)::B(B),XP(f)
      • S(j);N_GUARD,S_CUTR(b)::QAR(E),XB(i)
      • S(j);N_GUARD::QAR1(E),XS(j)
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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).