Problem Display
PID: 230126 (2b5/1pKp4/p2Pp3/k1P1Q3/3P4/1PP5/8/8 w - - 0 1)

Caine, Walter Edmund

Southend Times, 1937

(First published on Wed Sep 15 1937)

2b5/1pKp4/p2Pp3/k1P1Q3/3P4/1PP5/8/8

#2

7 + 6


15239 Valois Notebooks 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Kb5
      • 2.c6#
    • 1...b5
      • 2.cxb5 ep#
    • 1...b6
      • 2.cxb6#
  • Keys
    • 1.Qe1!
      • threat
        • 2.c4#
      • 1...Kb5
        • 2.c4#
      • 1...b5
        • 2.Qa1#

FEATURES


  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::QAR(E)+P(D)
    • P(d);OGATE::QAR(E)+P(D),XP(d),EP
    • P(d);OGATE::QAR(E)+P(D),XP(d)
  • Actual
    • Q(E);
    • Threat
      • QAB(E)+P(B)
    • Vars
      • K(a);P-FLIGHT::P(B)
      • P(d);SBLOCK::QAR(E)


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).