Problem Display
PID: 46799 (1B1K3R/5pN1/2B3p1/rp3pr1/3k4/N7/2R1PP2/8 w - - 0 1)

Wester, Anders Emil

The Hindu Weekly Review, 0000

1B1K3R/5pN1/2B3p1/rp3pr1/3k4/N7/2R1PP2/8

#2

9 + 7


4885 Amatorproblem 1976

SOLUTION


  • SOUND
  • Sets
    • 1...Ra4
      • 2.Sxb5#
    • 1...Ra6
      • 2.Sxb5#
    • 1...Ra7
      • 2.Sxb5#
    • 1...Ra8
      • 2.Sxb5#
    • 1...b4
      • 2.Rc4#
    • 1...f6
      • 2.Se6#
  • Tries
    • 1.Kc8?
      • threat
        • 2.Rd8#
      • 1...Ra7
        • 2.Sxb5#
      • 1...b4
        • 2.Rc4#
      • 1...f4!
    • 1.Rh4+?
      • 1...f4
        • 2.Rxf4#
      • 1...Rg4!
  • Keys
    • 1.Re8!
      • threat
        • 2.Be5#
      • 1...f4
        • 2.Re4#
      • 1...Ra8
        • 2.Sxb5#
      • 1...b4
        • 2.Rc4#
      • 1...f6
        • 2.Se6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • R(b);N_GUARD::S(D),XP(c)
    • R(b);N_GUARD,P_PINB(G)::S(D),XP(c)
    • P(c);N_GUARD::R1(A)
    • P(g);N_GUARD::S(F)
  • Tries
    • Try
      • K(H);P-FLIGHT
      • Threat
        • R(I)
      • Vars
        • R(b);N_GUARD::S(D),XP(c)
        • P(c);N_GUARD::R1(A)
      • Refutation
        • P(d);
    • Try
      • R(I);CHECK
      • Vars
        • P(d);P_SPINP(d)::R(I),XP(d)
      • Refutation
        • R(e);P_SPINR(e)
  • Actual
    • R(I);
    • Threat
      • B(G)
    • Vars
      • P(d);N_GUARD::R1(I)
      • R(b);N_GUARD,P_PINB(G)::S(D),XP(c)
      • P(c);N_GUARD::R1(A)
      • P(g);N_GUARD::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).