Problem Display
PID: 211099 (6B1/6RR/5pP1/3p1kPN/3P3b/3PP1pP/3K2P1/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

The Problemist Supplement, 2019

6B1/6RR/5pP1/3p1kPN/3P3b/3PP1pP/3K2P1/8

#2

12 + 5


SOLUTION


  • SOUND
  • Sets
    • 1...Bxg5
      • 2.Sxg3#
  • Tries
    • 1.Sxg3+?
      • 1...Kxg5
        • 2.Rh5#
      • 1...Bxg3!
    • 1.Bxd5?
      • 1...Bxg5
        • 2.Sxg3#
      • 1...fxg5
        • 2.e4#
      • 1...Kxg5!
  • Keys
    • 1.Sf4!
      • 1...Kxg5
        • 2.Rh5#
      • 1...Bxg5
        • 2.Be6#
      • 1...fxg5
        • 2.Rf7#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD,P_PINP(D),SBLOCK,XP(G)::S(H),XP(a)
  • Tries
    • Try
      • S(H);CHECK,XP(a)
      • Vars
        • K(d);P-FLIGHT,XP(G)::R1(K)
      • Refutation
        • B(b);XS(H)
    • Try
      • B(L);XP(c)
      • Vars
        • B(b);N_GUARD,P_PINP(D),SBLOCK,XP(G)::S(H),XP(a)
        • P(e);SBLOCK,XP(G)::P(D)
      • Refutation
        • K(d);P-FLIGHT,XP(G)
  • Actual
    • S(H);
    • Vars
      • K(d);OGATEB,P-FLIGHT,XP(G)::R1(K)
      • B(b);SBLOCK,XP(G)::B(L)
      • P(e);OGATEB,SBLOCK,XP(G)::R(J)


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).