MESON Chess Problem Database

Problem Display
PID: 166716 (n7/1pb5/8/2Q5/k7/8/K7/N7 w - - 0 1)

Lincoln, Robert A

StrateGems, 2016

n7/1pb5/8/2Q5/k7/8/K7/N7

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Qa3#
  • Keys
    • 1.Sb3!
      • threat
        • 2.Qc4#
      • 1...Ba5
        • 2.Qxa5#
      • 1...Bd6
        • 2.Qa5#
      • 1...Sb6
        • 2.Qa5#
      • 1...b5
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAR1(C)
  • Actual
    • S(A);
    • Threat
      • QAR2(C)
    • Vars
      • B(c);N_GUARD::QAR1(C),XB(c)
      • B(c);N_GUARD::QAR1(C)
      • S(d);S_CUTB(c)::QAR1(C)
      • P(b);SBLOCK::QAR1(C)
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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).