MESON Chess Problem Database

Problem Display
PID: 264853 (6K1/5p2/6k1/8/6P1/5P2/3Q4/8 w - - 0 1)

Lincoln, Robert A

The Problemist, 1993

6K1/5p2/6k1/8/6P1/5P2/3Q4/8

#2

4 + 2

5454 Near Snap 2022

SOLUTION

  • SOUND
  • Keys
    • 1.f4!
      • 1...Kf6
        • 2.Qd6#
      • 1...Kh6
        • 2.f5#
      • 1...f6
        • 2.f5#
      • 1...f5
        • 2.Qd6#

This anticipates 230976(2009)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(B);
    • Vars
      • K(a);P-FLIGHT,S_CUTP(b)::QAR2(A)
      • K(a);N_GUARD,P-FLIGHT::QAB(A)+P(B)
      • P(b);SBLOCK::P(B)
      • P(b);N_GUARD::QAR(A)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).