Problem Display
PID: 79537 (8/8/4K3/4N3/3QNk2/4p3/4r3/8 w - - 0 1)

Carpenter, George Edward

Dubuque Chess Journal, 1872

8/8/4K3/4N3/3QNk2/4p3/4r3/8

#2

4 + 3


14907 Good Companion Chess Problem Club 1916
5454 Near Snap 2009

SOLUTION


  • SOUND
  • Keys
    • 1.Qd1!
      • 1...Kxe4
        • 2.Qa4#
      • 1...Re1
        • 2.Qf3#
        • 2.Qg4#
      • 1...Ra2
        • 2.Qf3#
        • 2.Qg4#
      • 1...Rb2
        • 2.Qf3#
        • 2.Qg4#
      • 1...Rc2
        • 2.Qf3#
        • 2.Qg4#
      • 1...Rd2
        • 2.Qf3#
        • 2.Qg4#
      • 1...Rf2
        • 2.Qg4#
      • 1...Rg2
        • 2.Qf3#
      • 1...Rh2
        • 2.Qf3#
        • 2.Qg4#

Anticipated by 4503(1872)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(A);
    • Vars
      • K(c);OGATEB,P-FLIGHT,XS(B)::QAR(A)
      • R(a);OGATE::QAR1(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).