MESON Chess Problem Database

Problem Display
PID: 2124 (1N4B1/2n4N/p2r4/2B1k3/K5Q1/1P4p1/8/7n w - - 0 1)

Brown, Theodore Morris

Source?, 0000

1N4B1/2n4N/p2r4/2B1k3/K5Q1/1P4p1/8/7n

#2

7 + 6

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sc6#
    • 1...Rd2
      • 2.Sc6#
    • 1...Rd3
      • 2.Sc6#
    • 1...Rd5
      • 2.Sc6#
    • 1...Rb6
      • 2.Sd7#
    • 1...Rc6
      • 2.Sxc6#
      • 2.Sd7#
    • 1...Rf6
      • 2.Sd7#
    • 1...Rg6
      • 2.Sd7#
    • 1...Rh6
      • 2.Sd7#
    • 1...Rd7
      • 2.Sc6#
      • 2.Sxd7#
    • 1...Rd8
      • 2.Sc6#
    • 1...Sd5
      • 2.Bd4#
  • Keys
    • 1.Bd5!
      • threat
        • 2.Qe4#
        • 2.Qg5#
      • 1...Kxd5
        • 2.Qf5#
      • 1...Rxd5
        • 2.Sc6#
      • 1...Sxd5
        • 2.Bd4#
      • 1...Rf6
        • 2.Qe4#
      • 1...Rg6
        • 2.Qe4#
      • 1...Sf2
        • 2.Qg5#
      • 1...Se6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(e);N_GUARD::S(F)
    • S(f);S_CUTR(e)::B(D)
  • Actual
    • B(G);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);P-FLIGHT,XB(G)::QAR2(C)
      • R(e);N_GUARD,SBLOCK,XB(G)::S(F)
      • S(f);SBLOCK,XB(G)::B(D)
      • R(e);::QAR1(C)
      • S(a);::QAR2(C)
      • S(f);::QAR1(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).