Problem Display
PID: 162080 (8/2R5/1B1ppN2/1b2k1K1/1N3pp1/2r5/6r1/6bn w - - 0 1)

Broit, GA

Zadachi i Etyudi, 1928

8/2R5/1B1ppN2/1b2k1K1/1N3pp1/2r5/6r1/6bn

#2

5 + 10


SOLUTION


  • SOUND
  • Sets
    • 1...Rc4
      • 2.Sd3#
    • 1...Bc4
      • 2.Sc6#
  • Keys
    • 1.Rc4!
      • threat
        • 2.Re4#
      • 1...Rxc4
        • 2.Sd3#
      • 1...Bxc4
        • 2.Sc6#
      • 1...d5
        • 2.Bc7#
      • 1...Re2
        • 2.Sxg4#
      • 1...Re3
        • 2.Bd4#
      • 1...Bd4
        • 2.Bxd4#
      • 1...Bc6
        • 2.Sxc6#
      • 1...Sf2
        • 2.Bd4#
      • 1...Sg3
        • 2.Sxg4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • R(d);N_GUARD,S_CUTB(g)::S(A)
    • B(g);N_GUARD,S_CUTR(d)::S(A)
  • Actual
    • R(E);
    • Threat
      • R1(E)
    • Vars
      • R(d);N_GUARD,XR(E)::S(A)
      • B(g);N_GUARD,XR(E)::S(A)
      • P(i);OGATEB::B(C)
      • R(c);N_GUARD::S(D),XP(f)
      • R(d);S_CUTB(a)::B(C)
      • B(a);N_GUARD::B(C),XB(a)
      • B(g);N_GUARD::S(A),XB(g)
      • S(b);S_CUTB(a)::B(C)
      • S(b);S_CUTR(c)::S(D),XP(f)


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).