Problem Display
PID: 239015 (8/1K1R4/2P1p3/1k2N3/8/P7/1BBN4/R7 w - - 0 1)

Petite, Efren

Problemas, 2014

8/1K1R4/2P1p3/1k2N3/8/P7/1BBN4/R7

#2

9 + 2


15148 Sadier Collection 2021

SOLUTION


  • SOUND
  • Tries
    • 1.Sd3?
      • 1...e5
        • 2.Rd5#
      • 1...Ka5!
    • 1.Sec4?
      • 1...e5
        • 2.Rd5#
      • 1...Kc5!
    • 1.Rc1?
      • 1...Kc5
        • 2.Bd3#
        • 2.Ba4#
      • 1...Ka5!
    • 1.a4+?
      • 1...Ka5
        • 2.Bc3#
      • 1...Kc5
        • 2.Sd3#
        • 2.Ba3#
      • 1...Kb4!
  • Keys
    • 1.Rb1!
      • 1...Ka5
        • 2.Bc3#
      • 1...Kc5
        • 2.Bd4#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Vars
        • P(b);N_GUARD::R(I)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(F);
      • Vars
        • P(b);N_GUARD::R(I)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(E);CHECK
      • Vars
        • K(a);P-FLIGHT::B(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);P-FLIGHT::B(B)


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).