MESON Chess Problem Database

Problem Display
PID: 100873 (1B6/2N1K3/2b3B1/4k1n1/8/1rP2n2/4N3/6R1 w - - 0 1)

Coombs, Leslie D

Good Companions (May Meredith Ty.), 1917

1B6/2N1K3/2b3B1/4k1n1/8/1rP2n2/4N3/6R1

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Sb5#
    • 1...Se1
      • 2.Rxg5#
    • 1...Sd2
      • 2.Rxg5#
    • 1...Sh2
      • 2.Rxg5#
    • 1...Sd4
      • 2.cxd4#
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sd3#
        • 2.Sb5#
      • 1...Kxf4
        • 2.Sd5#
      • 1...Rxc3
        • 2.Sb5#
        • 2.Sce6#
      • 1...Rxb8
        • 2.Sd3#
      • 1...Rb5
        • 2.Sd3#
        • 2.Sxb5#
      • 1...Rb6
        • 2.Sd3#
      • 1...Rb7
        • 2.Sd3#
      • 1...Be4
        • 2.Sb5#
      • 1...Bb5
        • 2.Sxb5#
        • 2.Scd5#
        • 2.Sa6#
        • 2.Sce6#
        • 2.Sa8#
        • 2.Se8#
      • 1...Se1
        • 2.Sb5#
      • 1...Se4
        • 2.Sd3#
      • 1...Se6
        • 2.Sd3#
      • 1...Sf7
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • B(e);SBLOCK::B(G)+S(E)
    • S(b);N_GUARD::R(A),XS(d)
    • S(b);OGATE::P(C),XS(b)
  • Actual
    • S(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);S_FLIGHT,XS(B)::B(G)+S(E),DCHECK
      • R(a);XB(G)::S(B)
      • R(a);::S(B)
      • R(a);P_PINS(E)::S(B)
      • B(e);::B(G)+S(E)
      • S(b);::B(G)+S(E)
      • S(d);::S(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).