MESON Chess Problem Database

Problem Display
PID: 55553 (Q7/6p1/3Pp1P1/2P1k2n/1R5P/4P1n1/7B/1BK1R3 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Hackney Mercury, 1893

Q7/6p1/3Pp1P1/2P1k2n/1R5P/4P1n1/7B/1BK1R3

#2

11 + 5

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Bxg3#
  • Tries
    • 1.Rf1?
      • threat
        • 2.Re4#
        • 2.Qe4#
      • 1...Sf6
        • 2.Bxg3#
      • 1...Sf4!
    • 1.Qf3?
      • 1...Sf6
        • 2.Bxg3#
      • 1...Sf4!
  • Keys
    • 1.e4!
      • 1...Kf4
        • 2.e5#
      • 1...Kf6
        • 2.e5#
      • 1...Sf4
        • 2.Qa1#
      • 1...Sf6
        • 2.Bxg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD,SBLOCK::B(D),XS(a)
  • Tries
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);N_GUARD::B(D),XS(a)
      • Refutation
        • S(c);N_SPINS(a)
    • Try
      • Q(K);
      • Vars
        • S(c);N_GUARD::B(D),XS(a)
      • Refutation
        • S(c);N_SPINS(a)
  • Actual
    • P(E);
    • Vars
      • K(b);OGATE,S_FLIGHT::R(F)+P(E)
      • K(b);N_SPINS(a),OGATE,S_FLIGHT::P(E)
      • S(c);N_SPINS(a),SBLOCK::QAB(K)
      • S(c);N_GUARD,SBLOCK::B(D),XS(a)
HTML5 logo

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).