MESON Chess Problem Database

Problem Display
PID: 144267 (1nQ1b3/NB3R2/3np3/q3k3/3p1p1B/N1P5/3PP3/4R1K1 w - - 0 1)

Henderson, Thomas

Melbourne Leader, 1909

1nQ1b3/NB3R2/3np3/q3k3/3p1p1B/N1P5/3PP3/4R1K1

#2

11 + 8

119 Tidskrift for Schack 1909

SOLUTION

  • SOUND
  • Sets
    • 1...Qd8
      • 2.Qc5#
    • 1...Qa4
      • 2.Qc5#
    • 1...Qc5
      • 2.Qxc5#
    • 1...Qa6
      • 2.Qc5#
    • 1...Ba4
      • 2.Qh8#
    • 1...Bb5
      • 2.Qc5#
      • 2.Qh8#
    • 1...Bd7
      • 2.Qh8#
    • 1...Sc4
      • 2.Sxc4#
    • 1...Se4
      • 2.Sc4#
    • 1...Sb5
      • 2.Sc4#
      • 2.Qc5#
    • 1...Sf5
      • 2.Sc4#
    • 1...Sxc8
      • 2.Sc4#
    • 1...f3
      • 2.Bg3#
  • Keys
    • 1.e4!
      • threat
        • 2.Bf6#
      • 1...Bxf7
        • 2.Qh8#
      • 1...Sxe4
        • 2.Sc4#
      • 1...Sxb7
        • 2.Sc4#
      • 1...Sxf7
        • 2.Sc4#
      • 1...Sxc8
        • 2.Sc4#
      • 1...dxe4 ep
        • 2.d4#
      • 1...fxe4 ep
        • 2.Bg3#
      • 1...Sc4
        • 2.Sxc4#
      • 1...Sb5
        • 2.Sc4#
        • 2.Qc5#
      • 1...Sf5
        • 2.Sc4#
      • 1...Qd8
        • 2.Qc5#
      • 1...Sd7
        • 2.Sc6#
      • 1...f3
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 5
  • Sets
    • Q(c);N_GUARD::QAR2(K)
    • Q(c);N_GUARD::QAR2(K),XQ(c)
    • B(h);OGATE::QAB(K)
    • S(e);N_GUARD::S(E),XS(e)
    • S(e);N_GUARD::S(E)
    • S(e);N_GUARD,XQ(K)::S(E)
    • P(b);OGATEB::B(G)
  • Actual
    • P(D);
    • Threat
      • B(G)
    • Vars
      • B(h);OGATE,XR(J)::QAB(K)
      • S(e);N_GUARD,P_SPINS(e),XP(D)::S(E)
      • S(e);N_GUARD,XB(I)::S(E)
      • S(e);N_GUARD,XR(J)::S(E)
      • S(e);N_GUARD,XQ(K)::S(E)
      • P(a);EP,OGATE,P_SPINP(a),XP(D)::P(C)
      • P(b);EP,OGATEB,P_SPINP(b),XP(D)::B(G)
      • S(e);N_GUARD::S(E),XS(e)
      • S(e);N_GUARD::S(E)
      • Q(c);N_GUARD::QAR2(K)
      • S(g);N_GUARD,S_CUTB(h)::S(H)
      • P(b);OGATEB::B(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).