MESON Chess Problem Database

Problem Display
PID: 50900 (8/N1N5/q6b/Bn3p1r/1Ppk4/7p/1P2QK2/1B6 w - - 0 1)

Tucker, AJ

Chess Amateur (The), 1907

8/N1N5/q6b/Bn3p1r/1Ppk4/7p/1P2QK2/1B6

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qc8
      • 2.Saxb5#
      • 2.Sc6#
      • 2.Bb6#
    • 1...Qxa5
      • 2.Sc6#
    • 1...Qb6
      • 2.Bxb6#
    • 1...Qc6
      • 2.Sxc6#
    • 1...Qd6
      • 2.Saxb5#
    • 1...Qe6
      • 2.Saxb5#
    • 1...Qf6
      • 2.Saxb5#
    • 1...Qg6
      • 2.Saxb5#
    • 1...Rg5
      • 2.Qe3#
    • 1...Be3+
      • 2.Qxe3#
    • 1...Bg7
      • 2.Qe3#
    • 1...Bf8
      • 2.Qe3#
    • 1...f4
      • 2.Qe4#
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qc5#
      • 1...Be3+
        • 2.Qxe3#
      • 1...Qxa7
        • 2.Qf6#
      • 1...Qb6
        • 2.Bxb6#
      • 1...Qc6
        • 2.Sxc6#
      • 1...Qd6
        • 2.Saxb5#
      • 1...Bf8
        • 2.Qe3#
      • 1...Sd6
        • 2.Qf6#
      • 1...f4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(g);N_GUARD,XB(F)::S(G)
    • Q(g);N_GUARD::B(F),XQ(g)
    • Q(g);N_GUARD::S(G),XQ(g)
    • Q(g);N_GUARD::S(G),XS(d)
    • R(f);S_CUTB(h)::QAB1(C)
    • B(h);CHECK,N_GUARD::QAB1(C),XB(h)
    • B(h);N_GUARD::QAB1(C)
    • P(e);N_GUARD::QAR1(C)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • B(h);CHECK,N_GUARD::QAB1(C),XB(h)
      • Q(g);N_GUARD,XS(G)::QAB(C)
      • Q(g);N_GUARD::B(F),XQ(g)
      • Q(g);N_GUARD::S(G),XQ(g)
      • Q(g);N_GUARD::S(G),XS(d)
      • B(h);N_GUARD::QAB1(C)
      • S(d);S_CUTQ(g)::QAB(C)
      • P(e);N_GUARD::QAR1(C)
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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).