MESON Chess Problem Database

Problem Display
PID: 110517 (7k/1R6/8/6N1/7K/8/6Q1/bb6 w - - 0 1)

Kiss, Janos

Magyarsag, 1939

7k/1R6/8/6N1/7K/8/6Q1/bb6

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh7
      • 2.Sf7#
  • Tries
    • 1.Qb2+?
      • 1...Kg8
        • 2.Rb8#
      • 1...Bxb2!
  • Keys
    • 1.Rh7+!
      • 1...Kg8
        • 2.Qa8#
      • 1...Bxh7
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::S(C)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT::R(D)
      • Refutation
        • B(a);XQ(A)
  • Actual
    • R(D);CHECK
    • Vars
      • K(c);P-FLIGHT::QAR(A)
      • B(b);SBLOCK,XR(D)::S(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).