MESON Chess Problem Database

Problem Display
PID: 140042 (7n/K5Pq/7B/8/N7/3N4/8/kB5R w - - 0 1)

Kipping, Cyril Stanley

The Problemist, 1938

7n/K5Pq/7B/8/N7/3N4/8/kB5R

#2

7 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg7+
      • 2.Bxg7#
  • Keys
    • 1.Sb4!
      • threat
        • 2.Bc2#
        • 2.Bd3#
        • 2.Be4#
        • 2.Bf5#
        • 2.Bg6#
        • 2.Bxh7#
      • 1...Qxg7+
        • 2.Bxg7#
      • 1...Qxb1
        • 2.gxh8Q#
        • 2.gxh8B#
      • 1...Qxh6
        • 2.Sc2#
      • 1...Qc2
        • 2.Sxc2#
        • 2.Bxc2#
      • 1...Qd3
        • 2.Bxd3#
      • 1...Qe4
        • 2.Bxe4#
      • 1...Qf5
        • 2.Bxf5#
      • 1...Qg6
        • 2.Bxg6#
      • 1...Qg8
        • 2.Sc2#
        • 2.Ba2#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Be4#
        • 2.Bf5#
        • 2.Bg6#
        • 2.Bh7#
      • 1...Sg6
        • 2.Sc2#
        • 2.Ba2#
        • 2.Bc2#
        • 2.Bd3#
        • 2.Be4#
        • 2.Bf5#
        • 2.Bxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • Q(b);CHECK,OGATE,XP(G)::B(E),XQ(b)
  • Actual
    • S(C);
    • Threat
      • DUALS(6)
    • Vars
      • Q(b);CHECK,OGATE,XP(G)::B(E),XQ(b)
      • Q(b);N_PINP(G),P_SPINQ(b),XB(A)::PXS(c)=Q
      • Q(b);N_GUARD,N_PINP(G),XB(E)::S(C)
      • Q(b);N_PINP(G)::R(B)+B(A),XQ(b)
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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).