MESON Chess Problem Database

Problem Display
PID: 181824 (8/4Q3/3PPBR1/4p2p/4Nkn1/4N3/3PK1P1/8 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

1st Prize, Norwich Mercury, 1905

8/4Q3/3PPBR1/4p2p/4Nkn1/4N3/3PK1P1/8

#2

10 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...h4
      • 2.Rxg4#
  • Tries
    • 1.Qb7?
      • threat
        • 2.Bg5#
        • 2.g3#
      • 1...Sxf6
        • 2.Rxf6#
        • 2.g3#
      • 1...h4
        • 2.Bg5#
        • 2.Rxg4#
      • 1...Sxe3!
    • 1.d3?
      • threat
        • 2.Bg5#
        • 2.g3#
      • 1...Sxf6
        • 2.Rxf6#
        • 2.Qxf6#
        • 2.g3#
      • 1...h4
        • 2.Bg5#
        • 2.Rxg4#
      • 1...Sxe3!
  • Keys
    • 1.Sg3!
      • 1...Kxg3
        • 2.Bxe5#
      • 1...Sxe3
        • 2.dxe3#
      • 1...Sxf6
        • 2.Qxf6#
      • 1...Sf2
        • 2.Sd5#
      • 1...Sh2
        • 2.Sd5#
      • 1...Sh6
        • 2.Sd5#
      • 1...e4
        • 2.Sxh5#
      • 1...h4
        • 2.Rxg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • P(d);N_GUARD::R1(I),XS(b)
  • Tries
    • Try
      • Q(J);
      • Threat
        • DUALS(2)
      • Refutation
        • S(b);XS(D)
    • Try
      • P(A);
      • Threat
        • DUALS(2)
      • Refutation
        • S(b);XS(D)
  • Actual
    • S(E);
    • Vars
      • K(a);P_SPINS(b),S_FLIGHT,XS(E)::B(H),XP(c)
      • S(b);OGATE,XS(D)::P(A),XS(b)
      • S(b);OGATE,XB(H)::QAR2(J),XS(b)
      • S(b);::S(D)
      • P(c);SBLOCK::S(E),XP(d)
      • P(d);N_GUARD::R1(I),XS(b)
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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).