MESON Chess Problem Database

Problem Display
PID: 120662 (6R1/5pp1/5Nb1/B2Pp1k1/4P1PR/6K1/8/8 w - - 0 1)

Lyons, William Henry

Ottawa Citizen, 1885

6R1/5pp1/5Nb1/B2Pp1k1/4P1PR/6K1/8/8

#2

8 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.Bd8#
    • 1...gxf6
      • 2.Bd2#
      • 2.Rh5#
  • Tries
    • 1.Rh5+?
      • 1...Kxf6
        • 2.Bd8#
      • 1...Bxh5!
  • Keys
    • 1.Rh6!
      • 1...Kxf6
        • 2.Bd8#
      • 1...Kxh6
        • 2.Bd2#
      • 1...Bxe4
        • 2.Bd2#
      • 1...gxf6
        • 2.Bd2#
        • 2.Rh5#
      • 1...gxh6
        • 2.Sh7#
      • 1...Bf5
        • 2.Bd2#
      • 1...Bh5
        • 2.Bd2#
      • 1...Bh7
        • 2.Bd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,S_FLIGHT,XS(G)::B(E)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(b);S_FLIGHT,XS(G)::B(E)
      • Refutation
        • B(c);P_SPINP(e),XR(D)
  • Actual
    • R(D);
    • Vars
      • K(b);OGATEB,P_SPINB(c),S_FLIGHT,XS(G)::B(E)
      • K(b);S_FLIGHT,XR(D)::B(E)
      • B(c);P_SPINP(e),XP(B)::B(E)
      • P(e);P_SPINB(c),SBLOCK,XR(D)::S(G)
      • B(c);P_SPINP(e)::B(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).