MESON Chess Problem Database

Problem Display
PID: 2077 (5Kbk/6pp/6P1/8/8/8/8/7R w - - 0 1)

Brieger, Robert A

Source?, 0000

5Kbk/6pp/6P1/8/8/8/8/7R

#2

3 + 4

3713 Snap 2007
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Rxh7#
    • 1...Bb3
      • 2.Rxh7#
    • 1...Bc4
      • 2.Rxh7#
    • 1...Bd5
      • 2.Rxh7#
    • 1...Be6
      • 2.Rxh7#
    • 1...Bf7
      • 2.Rxh7#
  • Tries
    • 1.Rh5?
      • 1...Ba2
        • 2.Rxh7#
      • 1...Bb3
        • 2.Rxh7#
      • 1...Bc4
        • 2.Rxh7#
      • 1...Bd5
        • 2.Rxh7#
      • 1...Be6
        • 2.Rxh7#
      • 1...Bf7
        • 2.Rxh7#
      • 1...h6!
  • Keys
    • 1.Rh6!
      • 1...gxh6
        • 2.g7#
      • 1...Ba2
        • 2.Rxh7#
      • 1...Bb3
        • 2.Rxh7#
      • 1...Bc4
        • 2.Rxh7#
      • 1...Bd5
        • 2.Rxh7#
      • 1...Be6
        • 2.Rxh7#
      • 1...Bf7
        • 2.Rxh7#

Anticipated by 9303(1856), 206933(1856)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::R1(A),XP(b)
  • Tries
    • Try
      • R(A);
      • Vars
        • B(c);N_GUARD::R1(A),XP(b)
      • Refutation
        • P(b);
  • Actual
    • R(A);
    • Vars
      • P(a);N_SPINP(b),OGATE,XR(A)::P(B)
      • B(c);N_GUARD::R1(A),XP(b)
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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).