Problem Display
PID: 24447 (8/3P1P1P/4k3/8/5K2/3Q4/8/8 w - - 0 1)

van Ommeren, Aegidius Samuel

De Week, 1915

8/3P1P1P/4k3/8/5K2/3Q4/8/8

#2

5 + 1


5227 Schaak..., maar raak! 1969
3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION


  • SOUND
  • Tries
    • 1.Qf5+?
      • 1...Ke7
        • 2.f8Q#
      • 1...Kd6!
    • 1.d8S+?
      • 1...Kf6
        • 2.f8Q#
      • 1...Ke7!
  • Keys
    • 1.f8B!
      • threat
        • 2.Qf5#
      • 1...Kf6
        • 2.Qf5#
      • 1...Kf7
        • 2.Qf5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(C);CHECK
      • Vars
        • K(a);P-FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(D);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::QAR2(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).