MESON Chess Problem Database

Problem Display
PID: 151480 (8/K3p1n1/Npk2qQ1/RN6/1p5b/6n1/8/3R4 w - - 0 1)

Gamage, Frederick

Good Companions (November), 1914

8/K3p1n1/Npk2qQ1/RN6/1p5b/6n1/8/3R4

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Qe4#
    • 1...Sh1
      • 2.Qe4#
    • 1...Se2
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...S3f5
      • 2.Qg2#
    • 1...S3h5
      • 2.Qe4#
    • 1...S7f5
      • 2.Qe8#
    • 1...S7h5
      • 2.Qe8#
    • 1...Se6
      • 2.Qe8#
    • 1...Se8
      • 2.Qxe8#
    • 1...e5
      • 2.Qc2#
    • 1...e6
      • 2.Rd6#
  • Tries
    • 1.Qxf6+?
      • 1...Se6
        • 2.Qxe6#
      • 1...exf6
        • 2.Rd6#
      • 1...e6
        • 2.Rd6#
      • 1...Bxf6!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Sd4#
      • 1...Se2
        • 2.Qe4#
      • 1...S3f5
        • 2.Qg2#
      • 1...S7f5
        • 2.Qe8#
      • 1...Se6
        • 2.Qe8#
      • 1...e5
        • 2.Qc2#
      • 1...e6
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • S(a);N_GUARD::QAB(E)
    • S(a);N_GUARD::QAB(E),XS(a)
    • S(a);OGATE::QAB(E)
    • S(h);N_GUARD::QAB(E)
    • S(h);N_GUARD,N_SPINQ(f)::QAB(E)
    • S(h);N_GUARD::QAB(E),XS(h)
    • P(g);::QAR(E)
    • P(g);N_GUARD,N_SPINQ(f),S_CUTQ(f)::R1(A)
  • Tries
    • Try
      • Q(E);CHECK,XQ(f)
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAR2(E),XS(h)
        • P(g);N_GUARD,XQ(E)::R1(A)
        • P(g);N_GUARD,P_SPINP(g)::R1(A)
      • Refutation
        • B(c);XQ(E)
  • Actual
    • R(A);
    • Threat
      • S(C)
    • Vars
      • S(a);N_GUARD::QAB(E)
      • S(a);OGATE::QAB(E)
      • S(h);N_GUARD::QAB(E)
      • S(h);N_GUARD,N_SPINQ(f)::QAB(E)
      • P(g);::QAR(E)
      • P(g);N_GUARD,N_SPINQ(f),S_CUTQ(f)::R1(A)
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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).