Problem Display
PID: 175240 (7R/5Nk1/6b1/3BK3/5P2/8/6Q1/8 w - - 0 1)

Kockelkorn, Carl

Kohtz, Johannes

The Times, 1902

7R/5Nk1/6b1/3BK3/5P2/8/6Q1/8

#2

6 + 2


5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Rg8+?
      • 1...Kh7
        • 2.Qxg6#
      • 1...Kxg8!
  • Keys
    • 1.Ba8!
      • 1...Kxf7
        • 2.Qb7#

This anticipates 63480(1909), 16392(1940)

This is a version of 23673

There are these versions: 175146

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(b);N_SPINB(a),P-FLIGHT::QAB1(A),XB(a)
      • Refutation
        • K(b);P-FLIGHT,XR(F)
  • Actual
    • B(C);
    • Vars
      • K(b);N_SPINB(a),OGATEB,P-FLIGHT,XS(E)::QAR(A)


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).