MESON Chess Problem Database

Problem Display
PID: 73449 (7R/3N3N/K2k3B/3P4/6P1/5P2/3Q4/8 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1993

7R/3N3N/K2k3B/3P4/6P1/5P2/3Q4/8

#2

9 + 1

6113 Problemschach-Jahrbuch (1993) 1994

SOLUTION

  • SOUND
  • Tries
    • 1.Sb6?
      • 1...Kc5
        • 2.Bf8#
      • 1...Ke5
        • 2.Sc4#
        • 2.Bf4#
        • 2.Qf4#
      • 1...Kc7
        • 2.Bf4#
        • 2.Qf4#
        • 2.Qh2#
      • 1...Ke7!
    • 1.Shf6?
      • 1...Kc7
        • 2.Bf4#
        • 2.Qf4#
        • 2.Qh2#
      • 1...Ke7!
    • 1.Qa5?
      • 1...Kxd7
        • 2.Qd8#
      • 1...Ke7!
    • 1.Qg5?
      • 1...Kxd7
        • 2.Qd8#
      • 1...Kc7!
  • Keys
    • 1.Se5!
      • 1...Kc5
        • 2.Bf8#
      • 1...Kxe5
        • 2.Bf4#
      • 1...Kc7
        • 2.d6#
      • 1...Ke7
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(G)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(G)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(G);
    • Vars
      • K(a);S_FLIGHT::B(F)
      • K(a);OGATEB,S_FLIGHT,XS(G)::B(F)
      • K(a);OGATE,S_FLIGHT::P(D)
      • K(a);S_FLIGHT::QAB(A)
HTML5 logo

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).