MESON Chess Problem Database

Problem Display
PID: 73935 (1RK5/k7/4p3/1P2pb2/3p4/1pp5/5Q1p/4n3 w - - 0 1)

Hoffmann, Fritz

Heilbronner Stimme, 1993

1RK5/k7/4p3/1P2pb2/3p4/1pp5/5Q1p/4n3

#2

4 + 9

6113 Problemschach-Jahrbuch (1993) 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Qf7#
    • 1...Bc2
      • 2.Qf7#
    • 1...Bd3
      • 2.Qf7#
    • 1...Bh3
      • 2.Qf7#
    • 1...Bg4
      • 2.Qf7#
    • 1...Bh7
      • 2.Qf7#
    • 1...e4
      • 2.Qxd4#
  • Tries
    • 1.Rb6?
      • threat
        • 2.Ra6#
      • 1...Ka8
        • 2.Ra6#
      • 1...Kxb6!
  • Keys
    • 1.Qf1!
      • threat
        • 2.b6#
      • 1...Bd3
        • 2.Qf7#
      • 1...Sd3
        • 2.Qa1#
      • 1...d3
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • B(g);OGATE::QAR(A)
    • P(f);N_GUARD::QAB(A),XP(e)
  • Tries
    • Try
      • R(C);N_PINP(e)
      • Threat
        • R1(C)
      • Vars
        • K(i);P-FLIGHT::R(C)
      • Refutation
        • K(i);P_SPINP(e),S_FLIGHT,XR(C)
  • Actual
    • Q(A);N_PINP(e)
    • Threat
      • P(B)
    • Vars
      • B(g);OGATE::QAR(A)
      • S(a);OGATE::QAR(A)
      • P(e);OGATEB::QAB(A)
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).