MESON Chess Problem Database

Problem Display
PID: 234176 (n2Nn3/b1R4b/3p4/3k4/5Q2/BK1p4/8/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Deutsche Schachzeitung, 1977

n2Nn3/b1R4b/3p4/3k4/5Q2/BK1p4/8/8

#2

5 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Re7?
      • threat
        • 2.Qc4#
      • 1...Be4
        • 2.Qxe4#
      • 1...Bd4
        • 2.Qf7#
      • 1...Sb6!
  • Keys
    • 1.Bb2!
      • threat
        • 2.Qc4#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Be4
        • 2.Qf7#
      • 1...Sb6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Threat
        • QAB1(C)
      • Vars
        • B(e);N_GUARD::QAB1(C),XB(e)
        • B(d);SBLOCK::QAB(C)
      • Refutation
        • S(f);
  • Actual
    • B(A);
    • Threat
      • QAB1(C)
    • Vars
      • B(d);N_GUARD::QAR1(C),XB(d)
      • B(e);SBLOCK::QAB(C)
      • S(f);S_CUTB(d)::QAR1(C)
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).