MESON Chess Problem Database

Problem Display
PID: 142555 (4b3/7Q/5pr1/2R2r2/4PNkB/5pb1/1K3pN1/8 w - - 0 1)

Tucker, Frederick G

British Chess Magazine, 1891

4b3/7Q/5pr1/2R2r2/4PNkB/5pb1/1K3pN1/8

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rh5
      • 2.Qxh5#
    • 1...Rh6
      • 2.Qxf5#
    • 1...Rg7
      • 2.Qxf5#
    • 1...Rg8
      • 2.Qxf5#
    • 1...Bxh4
      • 2.Qxh4#
  • Keys
    • 1.Bg5!
      • threat
        • 2.Qh5#
      • 1...Kxg5
        • 2.Qh5#
      • 1...Rxf4
        • 2.Se3#
      • 1...Rfxg5
        • 2.Qh3#
      • 1...Rgxg5
        • 2.Qh3#
      • 1...Bxf4
        • 2.Qh4#
      • 1...Bh2
        • 2.Qh4#
      • 1...Bh4
        • 2.Qxh4#
      • 1...Rh6
        • 2.Qxf5#
      • 1...Rg7
        • 2.Qxf5#
      • 1...Rg8
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(e);N_GUARD::QAB1(G),XR(e)
    • R(g);OGATE::QAB1(G),XR(e)
    • B(c);OGATE,XB(E)::QAR1(G),XB(c)
  • Actual
    • B(E);
    • Threat
      • QAB1(G)
    • Vars
      • K(d);P-FLIGHT,P_SPINR(e),XB(E)::QAR1(G)
      • R(e);XS(D)::S(B)
      • R(e);XB(E)::QAB1(G)
      • R(g);SBLOCK,XB(E)::QAB1(G)
      • B(c);N_GUARD,XS(D)::QAR1(G)
      • B(c);N_GUARD::QAR1(G)
      • B(c);N_GUARD::QAR1(G),XB(c)
      • R(g);OGATE::QAB1(G),XR(e)
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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).