Problem Display
PID: 181180 (4nRK1/1RprkN2/2B2p2/3P1p2/5P2/2B5/8/8 w - - 0 1)

Ilkovski, Goce

3rd Comm., Kotelec, 1985

4nRK1/1RprkN2/2B2p2/3P1p2/5P2/2B5/8/8

#2

8 + 6


SOLUTION


  • SOUND
  • Sets
    • 1...Rxd5
      • 2.Rxe8#
    • 1...Rd6
      • 2.Rxe8#
  • Tries
    • 1.Bb4+?
      • 1...Rd6
        • 2.Rxe8#
      • 1...Sd6!
    • 1.Rxc7?
      • threat
        • 2.Rxd7#
      • 1...Rxc7
        • 2.Rxe8#
      • 1...Sxc7!
  • Keys
    • 1.Sd6!
      • 1...Kxd6
        • 2.Bb4#
      • 1...Kd8
        • 2.Rxe8#
      • 1...Rxd6
        • 2.Rxe8#
      • 1...Sxd6
        • 2.Bxf6#
      • 1...cxd6
        • 2.Rxd7#
      • 1...Rd8
        • 2.Sxf5#
      • 1...Sg7
        • 2.Sc8#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(d);P_SPINP(c),XP(C)::R1(G),XS(f)
    • R(d);P_SPINP(c)::R1(G),XS(f)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • R(d);P_SPINP(c),P_SPINR(d)::R1(G),XS(f)
      • Refutation
        • S(f);P_SPINS(f)
    • Try
      • R(E);P_PINR(d),XP(c)
      • Threat
        • R1(E),XR(d)
      • Vars
        • R(d);N_SPINR(d),XR(E)::R1(G),XS(f)
      • Refutation
        • S(f);N_SPINR(d),XR(E)
  • Actual
    • S(F);
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(F)::B(A)
      • K(e);P_SPINS(f),S_FLIGHT::R1(G),XS(f)
      • R(d);P_SPINP(c),SBLOCK,XS(F)::R1(G),XS(f)
      • S(f);N_GUARD,SBLOCK,XS(F)::B(A),XP(b)
      • P(c);OGATE,P_SPINR(d),XS(F)::R1(E),XR(d)
      • R(d);P_SPINP(c),SBLOCK::S(F),XP(a)
      • S(f);::S(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).