Problem Display
PID: 77962 (6rk/6RB/7P/3K4/8/8/8/7Q w - - 0 1)

Morse, Christopher Jeremy

Manchester Guardian, 1955

(First published on Fri Jan 7 1955)

6rk/6RB/7P/3K4/8/8/8/7Q

#2

5 + 2


1189 The Tablet 1955
5454 Near Snap 2021

SOLUTION


  • SOUND
  • Keys
    • 1.Qa1!
      • 1...Rd8+
        • 2.Rd7#
      • 1...Rxg7
        • 2.Qxg7#
      • 1...Ra8
        • 2.Ra7#
        • 2.Qxa8#
      • 1...Rb8
        • 2.Rb7#
      • 1...Rc8
        • 2.Rc7#
      • 1...Re8
        • 2.Re7#
      • 1...Rf8
        • 2.Rf7#

Anticipated by 6295(1928), 205822(1932), 263960(1939)

This anticipates 52578(0000), 210889(1985), 240458(1992)

There are these versions: 51226

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(A);
    • Vars
      • R(a);CHECK,N_GUARD::QAB(A)+R(D)
      • R(a);OGATE,P_SPINR(a),XR(D)::QAB1(A),XR(a)
      • R(a);N_GUARD::QAB(A)+R(D)


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).