MESON Chess Problem Database

Problem Display
PID: 273094 (8/R7/5Q2/1kr1p3/8/3P4/8/6BK w - - 0 1)

Browne, Gordon

Liverpool Weekly Mercury, 1904

(First published on Sat Dec 31 1904)

8/R7/5Q2/1kr1p3/8/3P4/8/6BK

#2

5 + 3

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Qb6#
    • 1...Rc2
      • 2.Qb6#
    • 1...Rc3
      • 2.Qb6#
    • 1...Rc4
      • 2.Qb6#
    • 1...Rd5
      • 2.Qb6#
    • 1...Rc7
      • 2.Qb6#
    • 1...Rc8
      • 2.Qb6#
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qxc5#
      • 1...Kb4
        • 2.Qb2#
      • 1...Kb6
        • 2.Qxc5#
      • 1...Kc6
        • 2.Qxc5#
      • 1...Rc6
        • 2.Qb2#
      • 1...Rc1
        • 2.Qb6#
      • 1...Rc2
        • 2.Qb6#
      • 1...Rc3
        • 2.Qb6#
      • 1...Rc4
        • 2.Qb6#
      • 1...Rd5
        • 2.Qb6#
      • 1...Rc7
        • 2.Qb6#
      • 1...Rc8
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(b);P_PINB(A)::QAR1(D)
    • R(b);::QAR1(D)
  • Actual
    • Q(D);
    • Threat
      • QAR1(D),XR(b)
    • Vars
      • K(a);N_GUARD,P-FLIGHT::QAR2(D)
      • K(a);P-FLIGHT,P_SPINR(b)::QAB1(D),XR(b)
      • K(a);S_FLIGHT::QAR1(D),XR(b)
      • R(b);SBLOCK::QAR(D)
      • R(b);OGATE,P_PINB(A)::QAR1(D)
      • R(b);OGATE::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).