MESON Chess Problem Database

Problem Display
PID: 70441 (b7/K6B/1Q6/3p4/R1P2B2/3N4/1pP4p/1k4bR w - - 0 1)

Vaughan, Colin V

Chess, 1951

b7/K6B/1Q6/3p4/R1P2B2/3N4/1pP4p/1k4bR

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qxb2#
  • Keys
    • 1.Sxb2!
      • threat
        • 2.c3#
      • 1...dxc4
        • 2.Sxc4#
      • 1...d4
        • 2.Sd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(e);N_PINQ(G)::QAR1(G),XP(c)
  • Actual
    • S(C);XP(c)
    • Threat
      • B(I)+P(B)
    • Vars
      • P(e);XP(E)::QAR(G)+S(C),XP(e)
      • P(e);N_PINQ(G)::QAR(G)+S(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).