MESON Chess Problem Database

Problem Display
PID: 215828 (5N2/8/6Pp/3Pp1kp/4PR2/4Q3/5N1b/5Kn1 w - - 0 1)

Erlin, Konrad (AKA Erlinger, Konrad)

Deutsche Schachzeitung, 1900

5N2/8/6Pp/3Pp1kp/4PR2/4Q3/5N1b/5Kn1

#2

8 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bg3
      • 2.Qxg3#
    • 1...Se2
      • 2.Sh3#
    • 1...Sf3
      • 2.Sh3#
    • 1...Sh3
      • 2.Sxh3#
    • 1...h4
      • 2.Rf5#
  • Tries
    • 1.Qb6?
      • threat
        • 2.Qf6#
      • 1...Bxf4
        • 2.Qd8#
      • 1...exf4
        • 2.Qd8#
      • 1...h4
        • 2.Rf5#
      • 1...Kxf4!
  • Keys
    • 1.Qa3!
      • 1...Kxf4
        • 2.Se6#
      • 1...Bxf4
        • 2.Qe7#
      • 1...exf4
        • 2.Qe7#
      • 1...h4
        • 2.Rf5#
      • 1...Bg3
        • 2.Qxg3#
      • 1...Se2
        • 2.Sh3#
      • 1...Sf3
        • 2.Sh3#
      • 1...Sh3
        • 2.Sxh3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::QAR2(C),XB(b)
    • S(a);N_GUARD::S(B)
    • S(a);N_GUARD::S(B),XS(a)
    • P(e);SBLOCK::QAB(C)+R(E),DCHECK
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • B(b);SBLOCK,XR(E)::QAB(C)
        • P(c);SBLOCK,XR(E)::QAB(C)
        • P(e);SBLOCK::R1(E)
      • Refutation
        • K(d);S_FLIGHT,XR(E)
  • Actual
    • Q(C);
    • Vars
      • K(d);S_FLIGHT,XR(E)::S(H)
      • B(b);SBLOCK,XR(E)::QAB(C)
      • P(c);SBLOCK,XR(E)::QAB(C)
      • P(e);SBLOCK::R1(E)
      • B(b);N_GUARD::QAR2(C),XB(b)
      • S(a);N_GUARD::S(B)
      • S(a);N_GUARD::S(B),XS(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).