Problem Display
PID: 150462 (2R5/8/1K1pp1n1/3kP3/8/1pP2P2/b7/1B2R3 w - - 0 1)

Agostini, Valerio

Best Problems, 2009

2R5/8/1K1pp1n1/3kP3/8/1pP2P2/b7/1B2R3

#2

7 + 6


15148 Sadier Collection 2014

SOLUTION


  • SOUND
  • Sets
    • 1...Sxe5
      • 2.Be4#
    • 1...b2
      • 2.Bxa2#
    • 1...dxe5
      • 2.Rd1#
  • Tries
    • 1.Bd3?
      • threat
        • 2.Bc4#
      • 1...Sxe5
        • 2.Be4#
      • 1...dxe5
        • 2.Rd8#
      • 1...b2!
  • Keys
    • 1.Re4!
      • threat
        • 2.c4#
      • 1...Sxe5
        • 2.Rd4#
      • 1...dxe5
        • 2.Rd8#
      • 1...b2
        • 2.Bxa2#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(f);SBLOCK,XP(E)::B(A)
    • P(b);OGATEB::B(A),XB(a)
    • P(d);SBLOCK,XP(E)::R(B)
  • Tries
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • S(f);SBLOCK,XP(E)::B(A)
        • P(d);OGATEB,XP(E)::R(G)
      • Refutation
        • P(b);
  • Actual
    • R(B);
    • Threat
      • P(C)
    • Vars
      • S(f);SBLOCK,XP(E)::R1(B)
      • P(d);OGATEB,XP(E)::R(G)
      • P(b);OGATEB::B(A),XB(a)


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).