Problem Display
PID: 96834 (6b1/3p1N2/3P2kP/4K1N1/8/4B3/8/3B4 w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

Source?, 0000

6b1/3p1N2/3P2kP/4K1N1/8/4B3/8/3B4

#2

7 + 3


5752 200 Assorted Problems (Wenman) 1945
6490 yacpdb 2009
5454 Near Snap 2010

SOLUTION


  • SOUND
  • Tries
    • 1.Se6?
      • 1...Kxf7
        • 2.Bh5#
      • 1...Kh7
        • 2.Sf8#
        • 2.Bc2#
      • 1...Bxf7
        • 2.Sf8#
      • 1...Bh7
        • 2.Sh8#
      • 1...dxe6!
  • Keys
    • 1.Sh7!
      • 1...Kxf7
        • 2.Bh5#
      • 1...Kxh7
        • 2.Bc2#
      • 1...Bxf7
        • 2.Sf8#
      • 1...Bxh7
        • 2.Sh8#

Anticipated by 5024(0000), 107709(1865), 161332(1888), 193337(1914)

This anticipates 142878(1971)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT,XS(G)::B(A)
        • B(c);SBLOCK,XS(G)::S(D)
        • B(c);SBLOCK::S(G)
      • Refutation
        • P(b);XS(D)
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT,XS(G)::B(A)
      • K(a);S_FLIGHT,XS(D)::B(A)
      • B(c);SBLOCK,XS(G)::S(D)
      • B(c);SBLOCK,XS(D)::S(G)


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).