MESON Chess Problem Database

Problem Display
PID: 133599 (2b4K/4b2N/nr3p2/3p3R/2nNk3/2Q1PpR1/8/6r1 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Der Tagesspiegel (Berlin), 1999

2b4K/4b2N/nr3p2/3p3R/2nNk3/2Q1PpR1/8/6r1

#2

7 + 10

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Sxf6#
    • 1...f2
      • 2.Qc2#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qd4#
      • 1...d4
        • 2.Qxd4#
      • 1...Rd1
        • 2.Rg4#
      • 1...Bc5!
    • 1.Sc6?
      • threat
        • 2.Qd4#
      • 1...Bc5
        • 2.Sxf6#
      • 1...d4
        • 2.Qxd4#
      • 1...Rd1!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qd4#
      • 1...Rd1
        • 2.Rg4#
      • 1...Bc5
        • 2.Sxf6#
      • 1...d4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(i);N_GUARD,S_CUTR(g)::S(F),XP(h)
    • P(b);::QAB(A)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(A)
      • Vars
        • P(e);::QAR1(A),XP(e)
        • R(a);N_GUARD::R(C)
      • Refutation
        • B(i);
    • Try
      • S(D);
      • Threat
        • QAR1(A)
      • Vars
        • B(i);N_GUARD::S(F),XP(h)
        • P(e);::QAR1(A),XP(e)
      • Refutation
        • R(a);
  • Actual
    • S(D);
    • Threat
      • QAR1(A)
    • Vars
      • R(a);N_GUARD::R(C)
      • B(i);N_GUARD::S(F),XP(h)
      • P(e);::QAR1(A),XP(e)
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).