MESON Chess Problem Database

Problem Display
PID: 252960 (8/1KQ5/8/5N2/4k3/8/6R1/4N3 w - - 0 1)

Figura, Josef

Wiener Schachzeitung, 1936

8/1KQ5/8/5N2/4k3/8/6R1/4N3

#2

5 + 1

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sf3?
      • 1...Kd3
        • 2.Qc2#
      • 1...Kd5
        • 2.Qc6#
      • 1...Kxf5
        • 2.Qe5#
      • 1...Kxf3!
    • 1.Se3?
      • 1...Kxe3
        • 2.Qe5#
      • 1...Kd4!
    • 1.Se7?
      • 1...Ke3
        • 2.Qe5#
      • 1...Kd4!
    • 1.Re2+?
      • 1...Kd5
        • 2.Re5#
        • 2.Qc6#
      • 1...Kxf5!
    • 1.Rg4+?
      • 1...Kd5
        • 2.Qd6#
      • 1...Kxf5!
  • Keys
    • 1.Sd3!
      • 1...Kxd3
        • 2.Qc2#
      • 1...Kf3
        • 2.Qc6#
      • 1...Kd5
        • 2.Qc6#
      • 1...Kxf5
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
        • K(a);N_GUARD,S_FLIGHT,XS(C)::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT,XS(A)
    • Try
      • S(C);
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XS(C)::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR2(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • R(B);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
  • Actual
    • S(A);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(A)::QAB1(E)
      • K(a);N_GUARD,S_FLIGHT::QAB(E)
      • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • K(a);N_GUARD,S_FLIGHT,XS(C)::QAR1(E)
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).