MESON Chess Problem Database

Problem Display
PID: 274778 (8/2K5/8/3BkNR1/3N4/8/3B4/8 w - - 0 1)

Singer, FH

Zurcher Woche, 1968

8/2K5/8/3BkNR1/3N4/8/3B4/8

#2

6 + 1

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3+?
      • 1...Kf6
        • 2.Bc3#
      • 1...Kxd5!
    • 1.Sh6+?
      • 1...Kf6
        • 2.Sg8#
      • 1...Kxd4!
    • 1.Se7+?
      • 1...Kf6
        • 2.Sg8#
      • 1...Kxd4!
    • 1.Be3?
      • 1...Kxd5
        • 2.Sd6#
      • 1...Kf6!
  • Keys
    • 1.Bc3!
      • 1...Kf4
        • 2.Se6#
      • 1...Kxd5
        • 2.Sd6#
      • 1...Kf6
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • S(D);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • S(D);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • B(A);
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XB(C)::R(E)+S(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(A);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::S(B)
      • K(a);N_GUARD,P-FLIGHT,XB(C)::R(E)+S(D)
      • K(a);N_GUARD,S_FLIGHT::B(A)+S(B)
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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).