Problem Display
PID: 1928 (3N4/8/8/R7/4k3/2P5/5Q2/7K w - - 0 1)

d'Orville, Peter Auguste

La Palamede, 1837

3N4/8/8/R7/4k3/2P5/5Q2/7K

#2

5 + 1


6299 250 Problemes des Echecs 1842
16 Chess Amateur (The) 1910
3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION


  • SOUND
  • Tries
    • 1.Ra2?
      • 1...Kd3
        • 2.Qd4#
      • 1...Kd5
        • 2.Qd4#
      • 1...Ke5!
  • Keys
    • 1.Rd5!
      • 1...Kxd5
        • 2.Qd4#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(a);S_FLIGHT,XR(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).