MESON Chess Problem Database

Problem Display
PID: 50883 (8/8/N5nQ/1PPk2PB/6P1/2K5/6NB/8 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Leisure Hour, 1900

8/8/N5nQ/1PPk2PB/6P1/2K5/6NB/8

#2

10 + 2

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Sh4
      • 2.Qc6#
    • 1...Sf8
      • 2.Qc6#
    • 1...Sh8
      • 2.Qc6#
  • Tries
    • 1.Qg7?
      • 1...Ke4
        • 2.Qb7#
      • 1...Ke6
        • 2.Sc7#
      • 1...Sh4
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Se7
        • 2.Qe5#
      • 1...Sf8
        • 2.Qe5#
      • 1...Sh8
        • 2.Qe5#
      • 1...Sf4!
  • Keys
    • 1.Qh7!
      • 1...Ke4
        • 2.Qb7#
      • 1...Ke6
        • 2.Sc7#
      • 1...Sf4
        • 2.Qf5#
      • 1...Sh4
        • 2.Bf7#
      • 1...Se5
        • 2.Sf4#
      • 1...Se7
        • 2.Bf7#
      • 1...Sf8
        • 2.Qf5#
      • 1...Sh8
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATE::QAB1(J)
  • Tries
    • Try
      • Q(J);
      • Vars
        • K(a);S_FLIGHT::QAB(J)
        • K(a);S_FLIGHT::S(I)
        • S(b);N_GUARD::QAR1(J)
        • S(b);N_GUARD::QAR1(J),XS(b)
      • Refutation
        • S(b);
  • Actual
    • Q(J);
    • Vars
      • K(a);P_SPINS(b),S_FLIGHT::QAB(J)
      • K(a);S_FLIGHT::S(I)
      • S(b);OGATE::QAR2(J)
      • S(b);OGATE::B(H)
      • S(b);N_GUARD,SBLOCK::S(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).