Problem Display
PID: 172514 (8/3K1p2/7B/4k3/6Q1/8/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 2002

8/3K1p2/7B/4k3/6Q1/8/8/8

#2

3 + 2


5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION


  • SOUND
  • Sets
    • 1...Kf6
      • 2.Bg7#
      • 2.Qg5#
  • Tries
    • 1.Bg7+?
      • 1...Kd5
        • 2.Qd4#
      • 1...f6!
  • Keys
    • 1.Be3!
      • 1...Kd5
        • 2.Qd4#
      • 1...Kf6
        • 2.Bd4#
        • 2.Qg5#
      • 1...f5
        • 2.Qd4#
      • 1...f6
        • 2.Qe6#

Anticipated by 123051(1991)

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • P(b);P_SPINP(b)
  • Actual
    • B(B);
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • P(b);SBLOCK::QAB1(A)
      • P(b);N_GUARD::QAR1(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).