Problem Display
PID: 172432 (8/8/8/8/4p3/5k1B/4N3/2N1K2R w K - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1997

8/8/8/8/4p3/5k1B/4N3/2N1K2R

#2

5 + 2


6490 yacpdb 2018

SOLUTION


  • SOUND
  • Tries
    • 1.Kd2?
      • threat
        • 2.Rf1#
      • 1...Kf2
        • 2.Rf1#
      • 1...e3+!
    • 1.Rg1?
      • threat
        • 2.Rg3#
      • 1...Ke3
        • 2.Rg3#
      • 1...e3!
  • Keys
    • 1.Bf5!
      • 1...Kg2
        • 2.Bxe4#
      • 1...Ke3
        • 2.Rh3#
      • 1...e3
        • 2.0-0#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • R(C)
      • Vars
        • K(a);P-FLIGHT::R1(C)
      • Refutation
        • P(b);CHECK
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
  • Actual
    • B(E);
    • Vars
      • K(a);S_FLIGHT::B(E),XP(b)
      • K(a);P-FLIGHT::R(C)
      • P(b);SBLOCK::0-0


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).