MESON Chess Problem Database

Problem Display
PID: 50462 (4R3/1B3N2/4n1Q1/B7/Rn2pk1P/2P5/8/3K4 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Evening News and Post, 1889

4R3/1B3N2/4n1Q1/B7/Rn2pk1P/2P5/8/3K4

#2

9 + 4

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qg3#
  • Tries
    • 1.Bc7+?
      • 1...Ke3
        • 2.Qg3#
      • 1...Kf3
        • 2.Qg3#
      • 1...Sxc7!
    • 1.Qg4+?
      • 1...Ke3
        • 2.Qg3#
      • 1...Kxg4!
  • Keys
    • 1.Se5!
      • 1...Ke3
        • 2.Qg3#
      • 1...Kxe5
        • 2.Bc7#
      • 1...Sa2
        • 2.Rxe4#
      • 1...Sc2
        • 2.Rxe4#
      • 1...Sd3
        • 2.Rxe4#
      • 1...Sd5
        • 2.Rxe4#
      • 1...Sa6
        • 2.Rxe4#
      • 1...Sc6
        • 2.Rxe4#
      • 1...Sd4
        • 2.Qg5#
      • 1...Sc5
        • 2.Qg5#
      • 1...Sg5
        • 2.Qxg5#
      • 1...Sc7
        • 2.Qg5#
      • 1...Sg7
        • 2.Qg5#
      • 1...Sd8
        • 2.Qg5#
      • 1...Sf8
        • 2.Qg5#
      • 1...e3
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAR2(F)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(F)
        • K(c);P-FLIGHT,P_SPINP(b)::QAR1(F)
      • Refutation
        • S(d);XB(E)
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR2(F)
      • Refutation
        • K(c);P-FLIGHT,XQ(F)
  • Actual
    • S(H);
    • Vars
      • K(c);S_FLIGHT::QAR2(F)
      • K(c);OGATEB,P_SPINS(d),S_FLIGHT,XS(H)::B(E)
      • S(a);OGATE,P_SPINP(b)::R1(C),XP(b)
      • S(d);N_GUARD::QAB1(F)
      • S(d);N_GUARD::QAB1(F),XS(d)
      • P(b);N_GUARD,P_SPINS(a),SBLOCK::S(H)
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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).