Problem Display
PID: 11917 (8/3K4/8/2pkpB2/8/2R2N2/8/8 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1973

8/3K4/8/2pkpB2/8/2R2N2/8/8

#2

4 + 3


SOLUTION


  • SOUND
  • Sets
    • 1...e4
      • 2.Be6#
  • Tries
    • 1.Bd3?
      • 1...e4
        • 2.Bc4#
      • 1...c4!
    • 1.Bg6?
      • 1...e4
        • 2.Bf7#
      • 1...c4!
    • 1.Bh7?
      • 1...e4
        • 2.Bg8#
      • 1...c4!
    • 1.Rc1?
      • 1...e4
        • 2.Be6#
      • 1...c4!
    • 1.Rc2?
      • 1...e4
        • 2.Be6#
      • 1...c4!
    • 1.Ra3?
      • 1...e4
        • 2.Be6#
      • 1...c4
        • 2.Ra5#
      • 1...Kc4!
    • 1.Re3?
      • threat
        • 2.Be6#
      • 1...c4
        • 2.Rxe5#
      • 1...Kc4!
  • Keys
    • 1.Rb3!
      • 1...Kc4
        • 2.Be6#
      • 1...e4
        • 2.Be6#
      • 1...c4
        • 2.Rb5#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::B(C)
  • Tries
    • Try
      • B(C);
      • Vars
        • P(c);SBLOCK::B(C)
      • Refutation
        • P(a);
    • Try
      • B(C);
      • Vars
        • P(c);SBLOCK::B(C)
      • Refutation
        • P(a);
    • Try
      • B(C);
      • Vars
        • P(c);SBLOCK::B(C)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Vars
        • P(c);SBLOCK::B(C)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Vars
        • P(c);SBLOCK::B(C)
      • Refutation
        • P(a);
    • Try
      • R(A);
      • Vars
        • P(c);SBLOCK::B(C)
        • P(a);OGATEB,SBLOCK::R(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(A);
      • Threat
        • B(C)
      • Vars
        • P(a);SBLOCK::R1(A),XP(c)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(b);S_FLIGHT::B(C)
      • P(c);SBLOCK::B(C)
      • P(a);OGATEB,SBLOCK::R(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).