Problem Display
PID: 247322 (8/2n5/6n1/r6R/1bPBk1B1/p1p2N1N/2P5/R3K3 w Q - 0 1)

Kapustin, Fedor Mikhailovich

Uralski Problemist, 2006

8/2n5/6n1/r6R/1bPBk1B1/p1p2N1N/2P5/R3K3

#2

9 + 7


SOLUTION


  • SOUND
  • Sets
    • 1...Sf4
      • 2.Sf2#
  • Tries
    • 1.Kf1?
      • threat
        • 2.Re1#
      • 1...Sf4
        • 2.Sf2#
      • 1...Sd5!
    • 1.Kf2?
      • threat
        • 2.Re1#
      • 1...Sd5
        • 2.Bf5#
      • 1...Sf4!
    • 1.Rf5?
      • threat
        • 2.Sf2#
        • 2.Shg5#
      • 1...Be7
        • 2.Sf2#
      • 1...Se6
        • 2.Sf2#
      • 1...Rxf5!
  • Keys
    • 1.0-0-0!
      • threat
        • 2.Re1#
      • 1...Sf4
        • 2.Sf2#
      • 1...Sd5
        • 2.Sfg5#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(f);SBLOCK::S(E)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • R(A)
      • Vars
        • S(f);SBLOCK::S(E)
      • Refutation
        • S(g);
    • Try
      • K(B);S_FLIGHT
      • Threat
        • R(A)
      • Vars
        • S(g);S_CUTR(e)::B(H)
      • Refutation
        • S(f);
    • Try
      • R(I);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);::S(E)
        • S(g);::S(E)
      • Refutation
        • R(e);XR(I)
  • Actual
    • K(B);0-0-0
    • Threat
      • R(A)
    • Vars
      • S(f);SBLOCK::S(E)
      • S(g);S_CUTR(e)::S(D)


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).