MESON Chess Problem Database

Problem Display
PID: 55582 (8/8/4P1p1/1p1P2p1/1P1N2B1/P1pk1N1R/Qn3p1K/2B2R2 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Leeds Mercury Weekly Supplement, 1894

8/8/4P1p1/1p1P2p1/1P1N2B1/P1pk1N1R/Qn3p1K/2B2R2

#2

12 + 7

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qe2#
    • 1...Sa4
      • 2.Qe2#
    • 1...Sc4
      • 2.Qc2#
      • 2.Qe2#
  • Tries
    • 1.Rd1+?
      • 1...Sxd1
        • 2.Qe2#
      • 1...Ke4!
    • 1.Qb1+?
      • 1...c2
        • 2.Qxc2#
      • 1...Kc4!
  • Keys
    • 1.Sb3!
      • 1...Kc2
        • 2.Sfd4#
      • 1...Ke2
        • 2.Sfd2#
      • 1...Kc4
        • 2.Sc5#
      • 1...Ke4
        • 2.Sc5#
      • 1...Sd1
        • 2.Sc5#
      • 1...Sa4
        • 2.Sfd2#
      • 1...Sc4
        • 2.Sc5#
      • 1...c2
        • 2.Sfd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE::QAB1(C)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • S(a);OGATE,XR(B)::QAB1(C)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • P(c);P_SPINP(c)::QAB1(C),XP(c)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • S(I);
    • Vars
      • K(d);P_SPINS(a),S_FLIGHT::S(F)
      • K(d);P_SPINS(a),S_FLIGHT::B(J)+S(F)
      • K(d);S_FLIGHT::QAB(C)+S(I)
      • K(d);S_FLIGHT::S(I)
      • S(a);::S(I)
      • S(a);::R(G)+S(F)
      • P(c);SBLOCK::R(G)+S(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).