Problem Display
PID: 214980 (R7/8/K7/Bp6/k7/8/2P5/8 w - - 0 1)

Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)

Land og Folk, 1978

R7/8/K7/Bp6/k7/8/2P5/8

#2

4 + 2


15148 Sadier Collection 2020

SOLUTION


  • SOUND
  • Tries
    • 1.Kb6?
      • threat
        • 2.Be1#
        • 2.Bd2#
        • 2.Bc3#
      • 1...Ka3
        • 2.Bc3#
      • 1...b4!
    • 1.Kb7?
      • threat
        • 2.Be1#
        • 2.Bd2#
        • 2.Bc3#
      • 1...Ka3
        • 2.Bc3#
      • 1...b4!
    • 1.Be1?
      • threat
        • 2.Kb6#
        • 2.Kb7#
      • 1...b4
        • 2.Kb6#
      • 1...Ka3!
    • 1.Bd2?
      • threat
        • 2.Kb6#
        • 2.Kb7#
      • 1...b4
        • 2.Kb6#
      • 1...Ka3!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Kb6#
        • 2.Kb7#
      • 1...Ka3
        • 2.Kxb5#
        • 2.Kb6#
        • 2.Kb7#
      • 1...b4
        • 2.Kb6#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • K(a);P-FLIGHT::R(D)+B(B)
      • Refutation
        • P(b);
    • Try
      • K(C);S_FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • K(a);P-FLIGHT::R(D)+B(B)
      • Refutation
        • P(b);
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::R(D)+K(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::R(D)+K(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(B);
    • Threat
      • DUALS(2)
    • Vars
      • P(b);::R(D)+K(C)


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).