MESON Chess Problem Database

Problem Display
PID: 59147 (6B1/3N4/1pq1P3/pP1kN3/Qn1P1R2/3R1K2/2P4B/8 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

I Uppnami, 1902

6B1/3N4/1pq1P3/pP1kN3/Qn1P1R2/3R1K2/2P4B/8

#2

12 + 5

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Qd6
      • 2.Sf6#
      • 2.Qb3#
      • 2.c4#
  • Tries
    • 1.Qxb4?
      • threat
        • 2.Sf6#
      • 1...Qxd7
        • 2.c4#
        • 2.exd7#
      • 1...Qc5
        • 2.dxc5#
      • 1...axb4!
  • Keys
    • 1.Sc4!
      • 1...Kxc4+
        • 2.d5#
      • 1...Qxb5
        • 2.Qxb5#
      • 1...Qxd7
        • 2.exd7#
      • 1...Qxc4
        • 2.Rf5#
      • 1...Qxe6
        • 2.Sdxb6#
      • 1...Sxc2
        • 2.Sf6#
        • 2.Rf5#
      • 1...Sxd3
        • 2.Sf6#
      • 1...Qb7
        • 2.e7#
      • 1...Qa8
        • 2.Sdxb6#
      • 1...Qc5
        • 2.e7#
      • 1...Qd6
        • 2.Se3#
      • 1...Qc7
        • 2.e7#
      • 1...Qc8
        • 2.Sdxb6#
      • 1...Sa2
        • 2.Sf6#
        • 2.Rf5#
      • 1...Sa6
        • 2.Sf6#
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);XS(a)
      • Threat
        • S(K)
      • Vars
        • Q(e);OGATE::R(C)+P(F),XQ(e)
      • Refutation
        • P(b);XQ(E)
  • Actual
    • S(I);
    • Vars
      • K(c);CHECK,OGATE,P_SPINS(a),S_FLIGHT,XS(I)::R(G)+P(F)
      • Q(e);OGATE,XP(H)::QAR2(E),XQ(e)
      • Q(e);OGATE,XS(K)::B(L)+P(J),XQ(e)
      • Q(e);SBLOCK,XS(I)::R(G)
      • Q(e);N_GUARD,P_SPINQ(e),XP(J)::S(K),XP(d)
      • S(a);XR(C)::S(K)
      • Q(e);N_GUARD::B(L)+P(J)
      • Q(e);N_GUARD::S(K),XP(d)
      • Q(e);SBLOCK::S(I)
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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).