Problem Display
PID: 253689 (3Nn2K/2p3n1/5P1N/2P1k2p/2R4B/4P3/8/7B w - - 0 1)

Page, George

Western Morning News, 1921

(First published on Sat Jun 11 1921)

3Nn2K/2p3n1/5P1N/2P1k2p/2R4B/4P3/8/7B

#2

9 + 5


15239 Valois Notebooks 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Sf5
      • 2.Shf7#
    • 1...Se6
      • 2.Sc6#
      • 2.Sdf7#
    • 1...Sxf6
      • 2.Bg3#
  • Tries
    • 1.Bc6?
      • threat
        • 2.Re4#
      • 1...Sxf6
        • 2.Bg3#
      • 1...Sd6!
    • 1.Rd4?
      • threat
        • 2.Rd5#
      • 1...Sxf6
        • 2.Bg3#
      • 1...c6!
  • Keys
    • 1.c6!
      • 1...Kd6
        • 2.Shf7#
        • 2.Bg3#
      • 1...Sxf6
        • 2.Bg3#
      • 1...Sd6
        • 2.Rc5#
      • 1...Sf5
        • 2.Shf7#
      • 1...Se6
        • 2.Sdf7#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(d);SBLOCK::S(G)
    • S(e);SBLOCK,XP(F)::B(D)
  • Tries
    • Try
      • B(A);
      • Threat
        • R1(C)
      • Vars
        • S(e);SBLOCK,XP(F)::B(D)
      • Refutation
        • S(e);
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • S(e);SBLOCK,XP(F)::B(D)
      • Refutation
        • P(c);
  • Actual
    • P(E);
    • Vars
      • S(e);SBLOCK,XP(F)::B(D)
      • S(e);SBLOCK::R(C)
      • S(d);SBLOCK::S(G)
      • S(d);SBLOCK::S(H)


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).