MESON Chess Problem Database

Problem Display
PID: 176547 (6R1/8/2p5/NbN5/7R/3p4/k2B4/2K5 w - - 0 1)

Kisis, Imants J

Schach-Echo, 1966

6R1/8/2p5/NbN5/7R/3p4/k2B4/2K5

#2

6 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Rxa4#
    • 1...Ba6
      • 2.Ra4#
  • Tries
    • 1.Rg2?
      • 1...Ka1
        • 2.Bc3#
      • 1...Ka3
        • 2.Bb4#
      • 1...Ba4
        • 2.Rxa4#
      • 1...Ba6
        • 2.Ra4#
      • 1...Bc4!
  • Keys
    • 1.Ra8!
      • 1...Ka1
        • 2.Sab3#
      • 1...Ka3
        • 2.Sc4#
      • 1...Bc4
        • 2.Sxc4#
      • 1...Ba4
        • 2.Rxa4#
      • 1...Ba6
        • 2.Ra4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::R(C),XB(c)
    • B(c);N_GUARD::R(C)
  • Tries
    • Try
      • R(F);
      • Vars
        • K(a);P-FLIGHT::B(B)
        • B(c);N_GUARD::R(C),XB(c)
        • B(c);N_GUARD::R(C)
      • Refutation
        • B(c);
  • Actual
    • R(F);
    • Vars
      • K(a);P-FLIGHT::R(F)+S(D),DCHECK
      • B(c);N_GUARD::R(F)+S(D),XB(c)
      • B(c);N_GUARD::R(C),XB(c)
      • B(c);N_GUARD::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).