MESON Chess Problem Database

Problem Display
PID: 55430 (8/1Q1p4/4pp2/R1p1k1pR/8/4K3/8/8 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Pen & Pencil, 1888

(First published on Sat Aug 11 1888)

8/1Q1p4/4pp2/R1p1k1pR/8/4K3/8/8

#2

4 + 6

3262 700 Chess Problems 1902
15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qe4#
    • 1...d6
      • 2.Qe4#
  • Tries
    • 1.Qc7+?
      • 1...Kd5
        • 2.Rxc5#
        • 2.Qxc5#
      • 1...d6
        • 2.Rxc5#
      • 1...Kf5!
    • 1.Qxd7?
      • threat
        • 2.Rxc5#
      • 1...f5
        • 2.Qd4#
      • 1...Kf5!
  • Keys
    • 1.Qb4!
      • 1...Kd5
        • 2.Qxc5#
      • 1...Kf5
        • 2.Qe4#
      • 1...Kd6
        • 2.Qxc5#
      • 1...f5
        • 2.Qd4#
      • 1...d5
        • 2.Qf4#
      • 1...d6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAB1(D)
    • P(f);SBLOCK::QAR1(D)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • P(f);::R(B),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(D);XP(f)
      • Threat
        • R(B),XP(a)
      • Vars
        • P(e);SBLOCK::QAB1(D)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(b);P-FLIGHT::QAR1(D),XP(a)
      • K(b);P-FLIGHT::QAB1(D)
      • K(b);S_FLIGHT::QAB1(D),XP(a)
      • P(e);SBLOCK::QAB1(D)
      • P(f);N_SPINP(a),P_SPINP(c),SBLOCK::QAB1(D)
      • P(f);SBLOCK::QAR1(D)
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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).