MESON Chess Problem Database

Problem Display
PID: 172396 (K1RB4/8/kp6/8/8/1B6/8/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

Kuban segodniya, 1997

K1RB4/8/kp6/8/8/1B6/8/8

#2

4 + 2

6490 yacpdb 2018
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...b5
      • 2.Rc6#
  • Tries
    • 1.Ba4?
      • 1...b5
        • 2.Rc6#
      • 1...Ka5!
    • 1.Bc4+?
      • 1...b5
        • 2.Rc6#
      • 1...Ka5!
  • Keys
    • 1.Rc5!
      • 1...bxc5
        • 2.Bc4#
      • 1...b5
        • 2.Rc6#

Anticipated by 224382(1887)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB,SBLOCK::R(C)
  • Tries
    • Try
      • B(A);
      • Vars
        • P(b);OGATEB::R(C)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
    • Try
      • B(A);CHECK
      • Vars
        • P(b);P_SPINP(b)::R(C)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
  • Actual
    • R(C);
    • Vars
      • P(b);N_GUARD,XR(C)::B(A)
      • P(b);OGATEB,SBLOCK::R(C)
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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).