Problem Display
PID: 108061 (1B4R1/2R2K2/4p3/2p1k3/2p5/2N5/3P4/8 w - - 0 1)

Finlayson, William

La Presse, 1895

1B4R1/2R2K2/4p3/2p1k3/2p5/2N5/3P4/8

#2

6 + 4


3402 Hampstead and Highgate Express 1897
6490 yacpdb 2009

SOLUTION


  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rd7#
  • Tries
    • 1.Kf8?
      • 1...Kd4
        • 2.Rd7#
      • 1...Kf4
        • 2.Rf7#
      • 1...Kf5
        • 2.Rf7#
      • 1...Kf6
        • 2.Rf7#
      • 1...Kd6!
    • 1.Rc6+?
      • 1...Kd4
        • 2.Rd8#
      • 1...Kf5!
    • 1.Ra7+?
      • 1...Kd4
        • 2.Rd7#
        • 2.Rd8#
      • 1...Kf5!
    • 1.Rb7+?
      • 1...Kd4
        • 2.Rd7#
        • 2.Rd8#
      • 1...Kf5!
    • 1.Re7+?
      • 1...Kd4
        • 2.Rd7#
        • 2.Rd8#
      • 1...Kf5!
    • 1.Rcc8+?
      • 1...Kd4
        • 2.Rcd8#
        • 2.Rgd8#
      • 1...Kf5!
    • 1.Rg5+?
      • 1...Kd4
        • 2.Rd7#
      • 1...Kd6
        • 2.Se4#
        • 2.Sb5#
      • 1...Kf4!
  • Keys
    • 1.Ke8!
      • 1...Kd4
        • 2.Rd7#
      • 1...Kf4
        • 2.Rf7#
      • 1...Kf5
        • 2.Rf7#
      • 1...Kd6
        • 2.Rc8#
      • 1...Kf6
        • 2.Rf7#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::R(C)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT::R(C)
        • K(c);S_FLIGHT::B(E)+R(C),DCHECK
        • K(c);P-FLIGHT::R(C)
        • K(c);S_FLIGHT::R1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(c);S_FLIGHT::R(F)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(C);CHECK,P_PINP(d)
      • Refutation
        • K(c);N_SPINP(d),P-FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(c);S_FLIGHT::R(C)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • K(D);S_FLIGHT
    • Vars
      • K(c);S_FLIGHT::R(C)
      • K(c);S_FLIGHT::B(E)+R(C),DCHECK
      • K(c);P-FLIGHT::R(C)
      • K(c);S_FLIGHT::B(E)+R(C)
      • K(c);S_FLIGHT::R1(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).