Problem Display
PID: 1936 (3K4/8/P2p2P1/3kN3/P2p2P1/2pN1p2/2P2P2/8 w - - 0 1)

Wormald, Robert Bownas

Illustrated London News, 1852

3K4/8/P2p2P1/3kN3/P2p2P1/2pN1p2/2P2P2/8

#2

9 + 5


3360 Simple Two-move Themes 1924
133 The Problemist Supplement 2012
5454 Near Snap 2019

SOLUTION


  • SOUND
  • Keys
    • 1.Sd7!
      • 1...Kc4
        • 2.Sb6#
      • 1...Ke4
        • 2.Sf6#
      • 1...Kc6
        • 2.Sb4#
      • 1...Ke6
        • 2.Sf4#

This anticipates 1977(1866), 75330(1879), 178325(1903), 189978(1913), 195113(1918), 195293(1923), 139878(1949), 147819(2012)

There are these versions: 147815

There are these afters: 62067, 147816, 147818

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(F);
    • Vars
      • K(d);S_FLIGHT::S(F)
      • K(d);S_FLIGHT::S(C)


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).