MESON Chess Problem Database

Problem Display
PID: 203501 (2N2k1K/8/5B2/5nN1/Q5np/6b1/b4p2/8 w - - 0 1)

Kintzig, Robert

Osterreichische Schachrundschau, 1924

2N2k1K/8/5B2/5nN1/Q5np/6b1/b4p2/8

#2

5 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bf7
      • 2.Sh7#
    • 1...Se3
      • 2.Be7#
      • 2.Bg7#
    • 1...Sd4
      • 2.Be7#
      • 2.Bg7#
    • 1...Sd6
      • 2.Be7#
      • 2.Bg7#
    • 1...Sh6
      • 2.Be7#
      • 2.Bg7#
    • 1...Se7
      • 2.Bxe7#
      • 2.Bg7#
    • 1...Sg7
      • 2.Be7#
      • 2.Bxg7#
  • Tries
    • 1.Qd7?
      • threat
        • 2.Sh7#
        • 2.Qd8#
      • 1...Bf7
        • 2.Sh7#
        • 2.Qxf7#
      • 1...Bg8
        • 2.Qd8#
      • 1...Bc7
        • 2.Sh7#
      • 1...Sd6
        • 2.Sh7#
        • 2.Be7#
        • 2.Bg7#
        • 2.Qe7#
      • 1...Se7
        • 2.Bxe7#
        • 2.Bg7#
        • 2.Qxe7#
        • 2.Qd8#
      • 1...Sg7
        • 2.Sh7#
        • 2.Be7#
        • 2.Bxg7#
        • 2.Qe7#
      • 1...Sxf6!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sg6#
      • 1...Sxe7
        • 2.Bg7#
      • 1...Bf7
        • 2.Sh7#
      • 1...Se5
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::S(B)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR2(A)
        • B(c);::S(B)
      • Refutation
        • S(d);XB(C)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • S(f);N_GUARD,SBLOCK,XS(D)::B(C)
      • B(a);SBLOCK::S(B)
      • S(d);S_CUTB(c)::QAR(A)
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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).