Problem Display
PID: 144278 (3R4/4N3/2P5/1pp1k3/1pr1P1P1/1Bp3K1/2P2R2/8 w - - 0 1)

Nield, Joshua

Grantham Journal, 1925

(First published on Sat Jul 18 1925)

3R4/4N3/2P5/1pp1k3/1pr1P1P1/1Bp3K1/2P2R2/8

#2

9 + 6


14868 Pirnie Collection 2012

SOLUTION


  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Re2#
    • 1...Rxe4
      • 2.Sg6#
      • 2.Rf5#
  • Tries
    • 1.Sg6+?
      • 1...Kxe4
        • 2.Re2#
      • 1...Ke6!
    • 1.Rf4?
      • 1...Rxe4
        • 2.Sg6#
        • 2.Rf5#
      • 1...Rd4
        • 2.Sg6#
      • 1...Ke6!
    • 1.Rf6?
      • 1...Kxe4
        • 2.Re6#
      • 1...Rxe4
        • 2.Rf5#
        • 2.Re6#
      • 1...Rd4
        • 2.Re6#
      • 1...Kxf6!
    • 1.Rd5+?
      • 1...Kxe4
        • 2.Re2#
      • 1...Ke6!
  • Keys
    • 1.Sc8!
      • 1...Kxe4
        • 2.Re2#
      • 1...Ke6
        • 2.Re8#
      • 1...Rxe4
        • 2.Rf5#
      • 1...Rd4
        • 2.Re8#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(f);OGATEB,P-FLIGHT,XP(E)::R(B)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(f);P-FLIGHT,XP(E)::R(B)
      • Refutation
        • K(f);P-FLIGHT,P_SPINR(c)
    • Try
      • R(B);
      • Vars
        • R(c);::S(H)
      • Refutation
        • K(f);P-FLIGHT,P_SPINR(c)
    • Try
      • R(B);
      • Vars
        • K(f);P-FLIGHT,XP(E)::R(B)
        • R(c);::R1(B)
      • Refutation
        • K(f);S_FLIGHT,XR(B)
    • Try
      • R(I);CHECK
      • Vars
        • K(f);P-FLIGHT,XP(E)::R(B)
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • S(H);
    • Vars
      • K(f);OGATEB,P-FLIGHT,XP(E)::R(B)
      • K(f);P-FLIGHT,P_SPINR(c)::R(I)
      • R(c);SBLOCK,XP(E)::R1(B)
      • R(c);SBLOCK::R(I)


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).