MESON Chess Problem Database

Problem Display
PID: 187863 (8/1p3p1B/1pPB1p2/nN1k4/P7/1p4NQ/1P4p1/6Kb w - - 0 1)

Brenander, Oskar Wilhelm

Tidskrift for Schack, 1910

8/1p3p1B/1pPB1p2/nN1k4/P7/1p4NQ/1P4p1/6Kb

#2

9 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Be4#
    • 1...Sc4
      • 2.Be4#
  • Tries
    • 1.Qg4?
      • threat
        • 2.Qe4#
      • 1...Kxc6
        • 2.Be4#
      • 1...f5!
    • 1.Qf5+?
      • 1...Kc4
        • 2.Qd3#
        • 2.Qe4#
      • 1...Kxc6!
    • 1.Qd7?
      • 1...Kc4
        • 2.Qxf7#
      • 1...Sxc6
        • 2.Qxf7#
      • 1...bxc6
        • 2.Qxf7#
      • 1...Sc4
        • 2.Be4#
      • 1...f5!
  • Keys
    • 1.Sf5!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kxc6
        • 2.Se7#
      • 1...Ke6
        • 2.Sc7#
      • 1...Sxc6
        • 2.Se3#
      • 1...bxc6
        • 2.Se3#
      • 1...Sc4
        • 2.Se7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(e);S_FLIGHT,XP(G)::B(I)
    • S(d);SBLOCK::B(I)
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • K(e);S_FLIGHT,XP(G)::B(I)
      • Refutation
        • P(g);
    • Try
      • Q(D);CHECK
      • Refutation
        • K(e);S_FLIGHT,XP(G)
    • Try
      • Q(D);
      • Vars
        • K(e);S_FLIGHT::QAB(D),XP(i)
        • S(d);SBLOCK,XP(G)::QAB(D),XP(i)
        • P(h);SBLOCK,XP(G)::QAB(D),XP(i)
        • S(d);SBLOCK::B(I)
      • Refutation
        • P(g);
  • Actual
    • S(C);
    • Vars
      • K(e);S_FLIGHT::S(C)
      • K(e);S_FLIGHT::S(F)
      • K(e);S_FLIGHT,XP(G)::S(C)
      • S(d);SBLOCK,XP(G)::S(C)
      • P(h);SBLOCK,XP(G)::S(C)
      • S(d);SBLOCK::S(C)
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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).