MESON Chess Problem Database

Problem Display
PID: 156902 (8/8/8/8/1Q6/1K6/8/2Nk4 w - - 0 1)

Burchard, Friedrich

Dittmann, Dr Wolfgang

Grob, Frank

Kuze, Augusts

Latzel, Gerhard Paul

Lokker, Miklosh S

Proband, Wolfgang

Schulz, Karl-Dieter

Wubbeke, Horst

Deutsche Schachzeitung, 1968

8/8/8/8/1Q6/1K6/8/2Nk4

#2

3 + 1

15148 Sadier Collection 2016
3713 Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc1
      • 2.Qe1#
  • Tries
    • 1.Qe7?
      • 1...Kxc1
        • 2.Qe1#
      • 1...Kd2!
    • 1.Qc4?
      • 1...Ke1
        • 2.Qe2#
      • 1...Kd2!
    • 1.Qe4?
      • 1...Kxc1
        • 2.Qc2#
        • 2.Qe1#
      • 1...Kd2!
    • 1.Qh4?
      • 1...Kxc1
        • 2.Qe1#
      • 1...Kd2!
  • Keys
    • 1.Qa5!
      • 1...Kxc1
        • 2.Qe1#

This anticipates 269452(1996)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,XS(A)::QAR2(C)
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT,XS(A)::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT,XS(A)::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT,XS(A)::QAR2(C)
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).