Problem Display
PID: 244713 (4R1NB/5p2/4p1b1/7p/7r/2P1kPPp/4P3/N3K3 w - - 0 1)

Colaneri, Bruno

Coello-75 JT (Problemas), 2017

4R1NB/5p2/4p1b1/7p/7r/2P1kPPp/4P3/N3K3

#2

9 + 7


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Sets
    • 1...Rd4
      • 2.Bxd4#
    • 1...Re4
      • 2.Sc2#
    • 1...Bc2
      • 2.Sxc2#
    • 1...Be4
      • 2.Bd4#
    • 1...f5
      • 2.Sc2#
  • Tries
    • 1.Rxe6+?
      • 1...Re4
        • 2.Sc2#
        • 2.Bd4#
      • 1...Be4
        • 2.Sc2#
        • 2.Bd4#
      • 1...fxe6!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sd5#
      • 1...Rd4
        • 2.Bxd4#
      • 1...Re4
        • 2.Sc2#
      • 1...Be4
        • 2.Bd4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD::B(I),XR(c)
    • R(c);N_SPINP(e),S_CUTB(f)::S(A)
    • B(f);N_GUARD::S(A),XB(f)
    • B(f);N_SPINP(e),S_CUTR(c)::B(I)
    • P(g);S_CUTB(f)::S(A)
  • Tries
    • Try
      • R(G);CHECK,XP(e)
      • Refutation
        • P(g);XR(G)
  • Actual
    • S(H);N_PINP(e)
    • Threat
      • S(H)
    • Vars
      • R(c);N_GUARD::B(I),XR(c)
      • R(c);S_CUTB(f)::S(A)
      • B(f);S_CUTR(c)::B(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).