Problem Display
PID: 164926 (1R5Q/1rR2NpK/3P3b/6P1/3k1P2/5B2/p1PP4/Nb6 w - - 0 1)

Sardella, Giuseppe

Best Problems, 2016

1R5Q/1rR2NpK/3P3b/6P1/3k1P2/5B2/p1PP4/Nb6

#2

12 + 6


SOLUTION


  • SOUND
  • Sets
    • 1...Rb3
      • 2.Sxb3#
    • 1...Rb4
      • 2.Rxb4#
    • 1...Ra7
      • 2.Sb3#
      • 2.Rb4#
  • Keys
    • 1.Se5!
      • threat
        • 2.Rc4#
      • 1...Bxc2+
        • 2.Sxc2#
      • 1...Rxc7
        • 2.Sb3#
      • 1...Rb4
        • 2.Rxb4#
      • 1...g6
        • 2.c3#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(e);N_GUARD::S(A),XR(e)
    • R(e);OGATE::R(K),XR(e)
  • Actual
    • S(I);N_PINP(f)
    • Threat
      • R1(H)
    • Vars
      • B(a);CHECK,XP(B)::S(A),XB(a)
      • R(e);N_GUARD,XR(H)::S(A)
      • R(e);OGATE::R(K),XR(e)
      • P(f);N_PINP(B),P_PINR(H)::P(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).