MESON Chess Problem Database

Problem Display
PID: 160156 (BR6/3p4/3N4/1Pk5/1r3Q1K/B3Nb2/np1n4/2b5 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Die Schwalbe, 1970

BR6/3p4/3N4/1Pk5/1r3Q1K/B3Nb2/np1n4/2b5

#2

8 + 8

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Bg4
      • 2.Qe5#
    • 1...Sc3
      • 2.Bxb4#
      • 2.Qxb4#
    • 1...Se4
      • 2.Qe5#
  • Tries
    • 1.Sdf5?
      • threat
        • 2.Qd4#
      • 1...Be4
        • 2.Qd6#
      • 1...Sb3
        • 2.Qc4#
      • 1...Se4
        • 2.Qc7#
      • 1...Bb7!
  • Keys
    • 1.Sef5!
      • threat
        • 2.Qd4#
      • 1...Be4
        • 2.Qe3#
        • 2.Qf2#
      • 1...Sb3
        • 2.Qc4#
      • 1...Se4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(e);N_PINQ(C)::QAR2(C)
    • S(d);N_PINQ(C)::QAR2(C)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(C)
      • Vars
        • B(e);N_PINQ(C)::QAB1(C)
        • S(d);N_GUARD::QAR1(C)
        • S(d);N_PINQ(C)::QAR2(C)
      • Refutation
        • B(e);
  • Actual
    • S(B);
    • Threat
      • QAB1(C)
    • Vars
      • S(d);N_GUARD::QAR1(C)
      • S(d);N_PINQ(C)::QAR2(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).