Problem Display
PID: 210887 (6n1/2KR4/4k3/5R2/4P3/3P4/8/8 w - - 0 1)

Mariz Garcia, J

The Problemist, 1985

6n1/2KR4/4k3/5R2/4P3/3P4/8/8

#2

5 + 2


SOLUTION


  • SOUND
  • Sets
    • 1...Se7
      • 2.Rd6#
  • Tries
    • 1.Rff7?
      • 1...Se7
        • 2.Rdxe7#
      • 1...Sf6
        • 2.Rde7#
        • 2.Rfe7#
      • 1...Sh6
        • 2.Rde7#
      • 1...Ke5!
    • 1.Rdd5?
      • threat
        • 2.Rde5#
      • 1...Ke7
        • 2.Rde5#
      • 1...Sf6!
  • Keys
    • 1.d4!
      • threat
        • 2.d5#
      • 1...Sf6
        • 2.Re5#
      • 1...Se7
        • 2.Rd6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::R1(E)
  • Tries
    • Try
      • R(C);
      • Vars
        • S(b);N_GUARD::R1(E),XS(b)
        • S(b);N_GUARD::R1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(E);
      • Threat
        • R1(E)
      • Vars
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • S(b);
  • Actual
    • P(A);
    • Threat
      • P(A)
    • Vars
      • S(b);SBLOCK::R1(C)
      • S(b);SBLOCK::R1(E)


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).