Problem Display
PID: 165983 (4B3/8/7B/1p6/8/k7/P1R5/K7 w - - 0 1)

Svitek, Miroslav

2nd HM., ChessStar, 2009

4B3/8/7B/1p6/8/k7/P1R5/K7

#2

5 + 2


3485 Sachova skladba 2012

SOLUTION


  • SOUND
  • Sets
    • 1...b4
      • 2.Bc1#
  • Tries
    • 1.Bd2?
      • 1...b4
        • 2.Bc1#
      • 1...Ka4!
    • 1.Bf8+?
      • 1...b4
        • 2.Rc3#
      • 1...Ka4!
    • 1.Rb2?
      • 1...b4
        • 2.Rb3#
      • 1...Ka4!
  • Keys
    • 1.Rc4!
      • threat
        • 2.Bc1#
      • 1...bxc4
        • 2.Bf8#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(b);SBLOCK::B(D)
  • Tries
    • Try
      • B(D);
      • Vars
        • P(b);SBLOCK::B(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • B(D);CHECK
      • Vars
        • P(b);P_SPINP(b)::R(C)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • R(C);
      • Vars
        • P(b);::R1(C)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
  • Actual
    • R(C);
    • Threat
      • B(D)
    • Vars
      • P(b);N_GUARD,XR(C)::B(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).