MESON Chess Problem Database

Problem Display
PID: 70444 (8/8/R2N2br/3p4/r4B2/8/4Pp2/1R3K1k w - - 0 1)

Kendrick, E

Chess, 1951

8/8/R2N2br/3p4/r4B2/8/4Pp2/1R3K1k

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Kxf2#
    • 1...Bh5
      • 2.Kxf2#
    • 1...Bf7
      • 2.Kxf2#
    • 1...Be8
      • 2.Kxf2#
  • Keys
    • 1.Se4!
      • threat
        • 2.Kxf2#
        • 2.Sxf2#
      • 1...Rxe4
        • 2.Kxf2#
      • 1...Bxe4
        • 2.Rxh6#
      • 1...dxe4
        • 2.Kxf2#
      • 1...Ra1
        • 2.Sxf2#
      • 1...Rb4
        • 2.Sxf2#
      • 1...Rc4
        • 2.Sxf2#
      • 1...Rd4
        • 2.Sxf2#
      • 1...Rh2
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 3
  • Sets
    • R(c);S_CUTB(e)::R(A)+K(B),XP(b)
    • B(e);N_GUARD::R(A)+K(B),XP(b)
  • Actual
    • S(F);
    • Threat
      • DUALS(2)
    • Vars
      • R(c);XS(F)::R(A)+K(B),XP(b)
      • B(e);OGATE,XS(F)::R(E),XR(f)
      • P(d);XS(F)::R(A)+K(B),XP(b)
      • R(c);P_PINR(A)::S(F),XP(b)
      • R(c);::S(F),XP(b)
      • R(f);SBLOCK::S(F)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).