MESON Chess Problem Database

Problem Display
PID: 82413 (1Q1b4/8/5pKn/q1pNP3/2P1kN2/3pP1B1/8/5R2 w - - 0 1)

Ahues, Herbert Siegfried Oskar

idee & form, 2004

1Q1b4/8/5pKn/q1pNP3/2P1kN2/3pP1B1/8/5R2

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • threat
        • 2.Rf4#
      • 1...dxe2
        • 2.Qb1#
      • 1...fxe5
        • 2.Qxe5#
      • 1...d2
        • 2.Qb1#
      • 1...Qc7
        • 2.Sec3#
      • 1...Bc7!
    • 1.Sh5?
      • threat
        • 2.Rf4#
      • 1...fxe5
        • 2.Qxe5#
      • 1...d2
        • 2.Qb1#
      • 1...Bc7
        • 2.Shxf6#
      • 1...Qc7!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Rf4#
      • 1...fxe5
        • 2.Qxe5#
      • 1...d2
        • 2.Qb1#
      • 1...Qc7
        • 2.Sc3#
      • 1...Bc7
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(A)
      • Vars
        • P(a);OGATEB,XS(E)::QAB(I)
        • P(e);OGATE,XP(G)::QAR1(I),XP(e)
        • P(a);OGATEB::QAB(I)
        • Q(c);N_GUARD::S(E)
      • Refutation
        • B(g);
    • Try
      • S(E);
      • Threat
        • R1(A)
      • Vars
        • P(e);OGATE,XP(G)::QAR1(I),XP(e)
        • P(a);OGATEB::QAB(I)
        • B(g);N_GUARD::S(E),XP(e)
      • Refutation
        • Q(c);
  • Actual
    • S(E);
    • Threat
      • R1(A)
    • Vars
      • P(e);OGATE,XP(G)::QAR1(I),XP(e)
      • P(a);OGATEB::QAB(I)
      • Q(c);N_GUARD::S(F)
      • B(g);N_GUARD::S(F),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).