MESON Chess Problem Database

Problem Display
PID: 59145 (6r1/1p6/6p1/1Q2N3/3pk3/6PB/3P1b1r/1K3R2 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Brighton and Hove Society, 1901

6r1/1p6/6p1/1Q2N3/3pk3/6PB/3P1b1r/1K3R2

#2

7 + 7

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Rf4#
    • 1...Bg1
      • 2.Rf4#
    • 1...Be3
      • 2.d3#
  • Tries
    • 1.Sf7?
      • threat
        • 2.Sg5#
      • 1...Kf3
        • 2.Qd3#
      • 1...Be3
        • 2.Sd6#
        • 2.d3#
      • 1...g5
        • 2.Qf5#
      • 1...d3!
    • 1.Re1+?
      • 1...Be3
        • 2.d3#
      • 1...Bxe1!
    • 1.Qc6+?
      • 1...Kxe5
        • 2.Qe6#
      • 1...bxc6!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sg5#
      • 1...Kxf3
        • 2.Qd3#
      • 1...Be3
        • 2.d3#
      • 1...d3
        • 2.Qxb7#
      • 1...g5
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE::R1(B)
    • B(a);SBLOCK::P(C)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • K(d);P_SPINB(a),S_FLIGHT::QAR2(F)
        • P(e);N_GUARD::QAB1(F)
      • Refutation
        • P(c);
    • Try
      • R(B);CHECK
      • Vars
        • B(a);P_SPINB(a)::P(C)
      • Refutation
        • B(a);XR(B)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);OGATEB,P-FLIGHT,XS(G)::QAR1(F)
      • Refutation
        • P(f);XQ(F)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(d);P_SPINB(a),S_FLIGHT,XS(G)::QAR2(F)
      • B(a);SBLOCK::P(C)
      • P(c);SBLOCK::QAB(F),XP(f)
      • P(e);N_GUARD::QAB1(F)
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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).