MESON Chess Problem Database

Problem Display
PID: 23040 (3B4/3B2pK/8/7k/8/5R2/8/7r w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

3B4/3B2pK/8/7k/8/5R2/8/7r

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Rh3#
    • 1...Rb1
      • 2.Rh3#
    • 1...Rc1
      • 2.Rh3#
    • 1...Rd1
      • 2.Rh3#
    • 1...Re1
      • 2.Rh3#
    • 1...Rf1
      • 2.Rh3#
    • 1...Rg1
      • 2.Rh3#
    • 1...Rh3
      • 2.Rxh3#
  • Tries
    • 1.Rg3?
      • threat
        • 2.Bg4#
      • 1...Rh4
        • 2.Rg5#
      • 1...g5!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Bg4#
      • 1...Rg1
        • 2.Rh4#
      • 1...Rh4
        • 2.Rxh4#
      • 1...g5
        • 2.Be8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::R(A)
    • R(a);N_GUARD::R(A),XR(a)
  • Tries
    • Try
      • R(A);
      • Threat
        • B(B)
      • Vars
        • R(a);SBLOCK::R1(A)
      • Refutation
        • P(c);
  • Actual
    • R(A);
    • Threat
      • B(B)
    • Vars
      • R(a);N_GUARD::R1(A)
      • R(a);N_GUARD::R1(A),XR(a)
      • P(c);N_GUARD::B(B)
HTML5 logo

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).