Problem Display
PID: 133106 (4kB2/6P1/8/3Q4/8/8/8/7K w - - 0 1)

Shinkman, William Anthony

The Theory of Pawn Promotion, 1912

4kB2/6P1/8/3Q4/8/8/8/7K

#2

4 + 1


5454 Near Snap 2023

SOLUTION


  • SOUND
  • Keys
    • 1.g8B!
      • 1...Kxf8
        • 2.Qf7#

This anticipates 196841(1919)

There are these versions: 183103

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(C);
    • Vars
      • K(a);P-FLIGHT,XB(D)::QAR1(B)


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).