MESON Chess Problem Database

Problem Display
PID: 223165 (N2Q1qB1/4nP2/K3kp2/1n6/4P3/8/7B/6R1 w - - 0 1)

Tinney, William E

Philadelphia Times, 1886

N2Q1qB1/4nP2/K3kp2/1n6/4P3/8/7B/6R1

#2

8 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qh6
      • 2.f8S#
    • 1...Qg7
      • 2.f8S#
    • 1...Qxd8
      • 2.f8S#
    • 1...Qe8
      • 2.fxe8Q#
      • 2.fxe8R#
      • 2.f8S#
    • 1...Sa3
      • 2.Sc7#
      • 2.Qd6#
    • 1...Sc3
      • 2.Sc7#
      • 2.Qd6#
    • 1...Sd4
      • 2.Sc7#
      • 2.Qd6#
    • 1...Sd6
      • 2.Sc7#
      • 2.Qxd6#
    • 1...Sa7
      • 2.Sc7#
      • 2.Qd6#
    • 1...Sc7+
      • 2.Sxc7#
  • Tries
    • 1.Qxe7+?
      • 1...Qxe7
        • 2.f8S#
      • 1...Kxe7!
  • Keys
    • 1.Qe8!
      • 1...Sc7+
        • 2.Sxc7#
      • 1...Qxf7
        • 2.Bxf7#
      • 1...Qxe8
        • 2.fxe8Q#
        • 2.f8S#
      • 1...Qxg8
        • 2.fxg8Q#
        • 2.fxg8B#
      • 1...f5
        • 2.Rg6#
      • 1...Qh6
        • 2.f8Q#
        • 2.f8S#
        • 2.f8B#
        • 2.f8R#
      • 1...Qg7
        • 2.f8S#
      • 1...Sa3
        • 2.Sc7#
      • 1...Sc3
        • 2.Sc7#
      • 1...Sd4
        • 2.Sc7#
      • 1...Sd6
        • 2.Sc7#
      • 1...Sa7
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • Q(e);OGATE::P=S
    • Q(e);OGATE,XQ(G)::P=S
    • S(a);CHECK,N_GUARD::S(F),XS(a)
  • Tries
    • Try
      • Q(G);CHECK,XS(d)
      • Vars
        • Q(e);OGATE,SBLOCK,XQ(G)::P=S
      • Refutation
        • K(b);P-FLIGHT,XQ(G)
  • Actual
    • Q(G);P_PINS(d)
    • Vars
      • S(a);CHECK,N_GUARD::S(F),XS(a)
      • Q(e);OGATE,P_SPINQ(e),XP(E)::B(H),XQ(e)
      • Q(e);OGATE,XB(H)::PXQ(e)=Q
      • P(c);OGATEB::R(A)
      • Q(e);OGATE::P=S
      • S(a);N_GUARD::S(F)
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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).