Problem Display
PID: 138312 (3N4/7K/2P1P2Q/8/1P2kPP1/8/2PP3N/8 w - - 0 1)

Reeves, Alfred Christopher

2nd Comm., Uralski Problemist, 2007

3N4/7K/2P1P2Q/8/1P2kPP1/8/2PP3N/8

#2

11 + 1


56 The Problemist 2010

SOLUTION


  • SOUND
  • Tries
    • 1.Qg6+?
      • 1...Kd4
        • 2.Qd3#
      • 1...Kd5
        • 2.Qd3#
      • 1...Kxf4!
  • Keys
    • 1.Qh3!
      • 1...Kd4
        • 2.Qd3#
      • 1...Kxf4
        • 2.Qe3#
      • 1...Kd5
        • 2.Qd3#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(I)
        • K(a);OGATE,S_FLIGHT::QAR2(I)
      • Refutation
        • K(a);P-FLIGHT,XP(E)
  • Actual
    • Q(I);
    • Vars
      • K(a);P-FLIGHT::QAR1(I)
      • K(a);P-FLIGHT,XP(E)::QAB1(I)
      • K(a);S_FLIGHT::QAR2(I)


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).