Problem Display
PID: 6163 (8/4P1Q1/3k4/8/3K4/8/8/8 w - - 0 1)

Kolodnas, Zelikas

Neue Leipziger Zeitung, 1927

8/4P1Q1/3k4/8/3K4/8/8/8

#2

3 + 1


3296 Shakhmatny zadachi miniaturi 1987
3813 300 Sachmatu Uzdaviniu 1991
6490 yacpdb 2010
5454 Near Snap 2021

SOLUTION


  • SOUND
  • Tries
    • 1.Qe5+?
      • 1...Kd7
        • 2.e8Q#
      • 1...Kc6!
  • Keys
    • 1.e8B!
      • 1...Ke6
        • 2.Qe5#

This anticipates 133818(1963), 12465(1979)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(B);
    • Vars
      • K(a);P-FLIGHT::QAR1(C)


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).