MESON Chess Problem Database

Problem Display
PID: 51156 (K1N5/2QB4/N1pn2p1/2nqB1p1/3Pk1P1/4p3/4P3/8 w - - 0 1)

Allison, Christopher John

Manchester Guardian, 1951

K1N5/2QB4/N1pn2p1/2nqB1p1/3Pk1P1/4p3/4P3/8

#2

9 + 8

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Keys
    • 1.Qxc6!
      • threat
        • 2.Sxc5#
        • 2.Sxd6#
      • 1...Qxc6+
        • 2.Bxc6#
      • 1...Sxa6
        • 2.Sxd6#
      • 1...Sxd7
        • 2.Sxd6#
      • 1...Sxc8
        • 2.Sxc5#
      • 1...Sb3
        • 2.Sxd6#
      • 1...Sd3
        • 2.Sxd6#
      • 1...Sa4
        • 2.Sxd6#
      • 1...Se6
        • 2.Sxd6#
      • 1...Scb7
        • 2.Qc2#
      • 1...Sc4
        • 2.Sxc5#
      • 1...Sb5
        • 2.Sxc5#
      • 1...Sf5
        • 2.Sxc5#
      • 1...Sdb7
        • 2.Qxg6#
      • 1...Sf7
        • 2.Sxc5#
      • 1...Se8
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 15
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(F);P_PINQ(d),P_SPINQ(F),XP(f)
    • Threat
      • DUALS(2)
    • Vars
      • Q(d);CHECK,N_SPINQ(d),OGATE,XQ(F)::B(G),XQ(d)
      • S(c);XS(E)::S(I),XS(g)
      • S(c);XB(G)::S(I),XS(g)
      • S(g);XS(I)::S(E),XS(c)
      • S(c);::S(I),XS(g)
      • S(c);N_PINQ(F)::QAB(F)
      • S(g);::S(E),XS(c)
      • S(g);N_PINQ(F)::QAB(F),XP(h)
HTML5 logo

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).