MESON Chess Problem Database

Problem Display
PID: 64050 (8/3b1NpB/1pp1k1N1/n1p3P1/4P1Kp/Bp4n1/5Q2/8 w - - 0 1)

Brown, WM

Chess Amateur (The), 1910

8/3b1NpB/1pp1k1N1/n1p3P1/4P1Kp/Bp4n1/5Q2/8

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Qf5#
    • 1...Sh1
      • 2.Qf5#
    • 1...Se2
      • 2.Qf5#
    • 1...Sxe4
      • 2.Qf5#
    • 1...Sf5
      • 2.Qxf5#
    • 1...Sh5
      • 2.Qf5#
    • 1...c4
      • 2.Sf8#
      • 2.Sd8#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.Sf8#
        • 2.Sd8#
      • 1...Sxe4
        • 2.Qf5#
      • 1...Bc8
        • 2.Sf8#
      • 1...Be8
        • 2.Sf8#
      • 1...Sf5
        • 2.Sd8#
        • 2.Qxf5#
      • 1...Sb7
        • 2.Sf8#
      • 1...bxc5!
    • 1.Qd2?
      • threat
        • 2.Sd8#
      • 1...Kxf7+
        • 2.Qxd7#
      • 1...Sb7!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Sd8#
      • 1...Kxf7+
        • 2.Qxd7#
      • 1...Sb7
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • S(b);N_GUARD::QAB1(A)
    • S(b);N_GUARD,XP(C)::QAB1(A)
    • S(b);N_GUARD::QAB1(A),XS(b)
  • Tries
    • Try
      • B(B);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);N_GUARD,XP(C)::QAB1(A)
        • B(i);::S(F)
        • S(d);::S(F)
      • Refutation
        • P(f);XB(B)
    • Try
      • Q(A);
      • Threat
        • S(G)
      • Vars
        • K(h);CHECK,S_FLIGHT,XS(G)::QAR2(A),XB(i)
      • Refutation
        • S(d);
  • Actual
    • Q(A);
    • Threat
      • S(G)
    • Vars
      • K(h);CHECK,S_FLIGHT,XS(G)::QAR2(A),XB(i)
      • S(d);N_GUARD::QAB(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).