MESON Chess Problem Database

Problem Display
PID: 229923 (8/8/8/8/4Q3/2K5/3p4/3k4 w - - 0 1)

Latzel, Gerhard Paul

Deutsche Schachzeitung, 1968

8/8/8/8/4Q3/2K5/3p4/3k4

#2

2 + 2

5454 Near Snap 2021
15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc1
      • 2.Qc2#
  • Tries
    • 1.Qd3?
      • threat
        • 2.Qf1#
        • 2.Qxd2#
      • 1...Kc1
        • 2.Qc2#
      • 1...Ke1!
  • Keys
    • 1.Kb3!
      • 1...Kc1
        • 2.Qc2#

This anticipates 217868(1968)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • Q(B);P_PINP(b)
      • Threat
        • DUALS(2)
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
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).