Problem Display
PID: 195113 (1R6/3p4/3B2K1/3k1N2/3N4/8/2P2BP1/8 w - - 0 1)

Shinkman, William Anthony

Pittsburgh Gazette-Times, 1918

1R6/3p4/3B2K1/3k1N2/3N4/8/2P2BP1/8

#2

8 + 2


5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION


  • SOUND
  • Tries
    • 1.Se2?
      • 1...Kc4
        • 2.Se3#
      • 1...Ke4
        • 2.Sc3#
      • 1...Ke6
        • 2.Sf4#
      • 1...Kc6!
    • 1.Rb5+?
      • 1...Ke4
        • 2.Sg3#
      • 1...Kc4!
  • Keys
    • 1.Sb5!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Se7#
      • 1...Ke6
        • 2.Sc7#

Anticipated by 1936(1852), 1977(1866), 75330(1879), 178325(1903), 189978(1913)

This anticipates 195293(1923), 62067(1936), 16381(1940), 139878(1949), 147818(1983), 147815(2012), 147819(2012)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::S(E)
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(H);CHECK
      • Vars
        • K(a);S_FLIGHT::S(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::S(E)
      • K(a);S_FLIGHT::S(D)


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).