MESON Chess Problem Database

Problem Display
PID: 230883 (2Q3B1/1PP1R1N1/4N3/3P1P2/4k3/1P2B2K/R2P4/8 w - - 0 1)

Anonymous

Design and Work, 1878

(First published on Sat Oct 19 1878)

2Q3B1/1PP1R1N1/4N3/3P1P2/4k3/1P2B2K/R2P4/8

#2

14 + 1

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Sf4#
    • 1...Kf3
      • 2.Sd4#
  • Tries
    • 1.Ra6?
      • 1...Kf3
        • 2.Sd4#
      • 1...Kxd5
        • 2.Sf4#
        • 2.Sc5#
        • 2.Sg5#
        • 2.Sd8#
        • 2.Sf8#
      • 1...Ke5
        • 2.Sd4#
        • 2.Sf4#
        • 2.Sc5#
        • 2.Sg5#
        • 2.Sd8#
        • 2.Sf8#
      • 1...Kd3!
    • 1.Qd7?
      • 1...Kd3
        • 2.Sf4#
      • 1...Kf3
        • 2.Sd4#
      • 1...Ke5!
    • 1.Qd8?
      • 1...Kd3
        • 2.Sf4#
      • 1...Kf3
        • 2.Sd4#
      • 1...Ke5!
  • Keys
    • 1.Se8!
      • 1...Kd3
        • 2.Sf4#
      • 1...Kf3
        • 2.Sd4#
      • 1...Kxd5
        • 2.Sd8#
      • 1...Ke5
        • 2.Sd4#
        • 2.Sf4#
        • 2.Sc5#
        • 2.Sg5#
        • 2.S6g7#
        • 2.Sd8#
        • 2.Sf8#
      • 1...Kxf5
        • 2.Sf8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(H)
  • Tries
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::S(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(M);
      • Vars
        • K(a);S_FLIGHT::S(H)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(M);
      • Vars
        • K(a);S_FLIGHT::S(H)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(L);
    • Vars
      • K(a);S_FLIGHT::S(H)
      • K(a);S_FLIGHT,XP(F)::B(N)+S(H)
      • K(a);S_FLIGHT,XP(G)::QAB(M)+S(H)
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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).