MESON Chess Problem Database

Problem Display
PID: 183158 (k1q5/NRB5/K1P5/8/8/8/8/8 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

Source?, 1907

k1q5/NRB5/K1P5/8/8/8/8/8

#2

5 + 2

3713 Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Rb8#
    • 1...Qg4
      • 2.Rb8#
    • 1...Qf5
      • 2.Rb8#
    • 1...Qe6
      • 2.Rb8#
    • 1...Qxb7+
      • 2.cxb7#
    • 1...Qd7
      • 2.Rb8#
    • 1...Qb8
      • 2.Rxb8#
  • Keys
    • 1.Sb5!
      • 1...Qxb7+
        • 2.cxb7#
      • 1...Qxc7
        • 2.Sxc7#
      • 1...Qh3
        • 2.Ra7#
        • 2.Rb8#
      • 1...Qg4
        • 2.Ra7#
        • 2.Rb8#
      • 1...Qf5
        • 2.Ra7#
        • 2.Rb8#
      • 1...Qe6
        • 2.Ra7#
        • 2.Rb8#
      • 1...Qd7
        • 2.Ra7#
        • 2.Rb8#
      • 1...Qb8
        • 2.Rxb8#
      • 1...Qd8
        • 2.Ra7#
      • 1...Qe8
        • 2.Ra7#
      • 1...Qf8
        • 2.Ra7#
      • 1...Qg8
        • 2.Ra7#
      • 1...Qh8
        • 2.Ra7#

This anticipates 146146(1953)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 5
  • Sets
    • Q(b);N_PINR(D)::R1(D)
    • Q(b);N_PINR(D),P_PINP(B)::R1(D)
    • Q(b);CHECK,OGATE,XR(D)::P(B),XQ(b)
    • Q(b);N_PINR(D)::R1(D),XQ(b)
  • Actual
    • S(C);
    • Vars
      • Q(b);CHECK,OGATE,XR(D)::P(B),XQ(b)
      • Q(b);N_PINR(D),XB(E)::S(C),XQ(b)
      • Q(b);N_PINR(D)::R1(D),XQ(b)
      • Q(b);N_PINR(D)::R1(D)
      • Q(b);N_PINR(D),SBLOCK::R1(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).