MESON Chess Problem Database

Problem Display
PID: 119887 (8/2K5/5B2/1p1k1P2/1Pb1N1n1/8/2Q1n1P1/8 w - - 0 1)

Moller, J?

Deutsche Schachzeitung, 1890

8/2K5/5B2/1p1k1P2/1Pb1N1n1/8/2Q1n1P1/8

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Qc6#
    • 1...Bb3
      • 2.Qc6#
    • 1...Bd3
      • 2.Qc6#
    • 1...Sc1
      • 2.Sc3#
    • 1...Sg1
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Sg3
      • 2.Sc3#
    • 1...Sd4
      • 2.Sc3#
    • 1...Sf4
      • 2.Sc3#
  • Tries
    • 1.Qd3+?
      • 1...Sd4
        • 2.Sc3#
        • 2.Qxd4#
      • 1...Bxd3!
  • Keys
    • 1.Qc3!
      • 1...Kxe4
        • 2.Qf3#
      • 1...Sxc3
        • 2.Sxc3#
      • 1...Sxf6
        • 2.Sxf6#
      • 1...Ba2
        • 2.Qc6#
      • 1...Bb3
        • 2.Qc6#
      • 1...Bd3
        • 2.Qc6#
      • 1...Sc1
        • 2.Qd4#
      • 1...Sg1
        • 2.Qd4#
      • 1...Sg3
        • 2.Qd4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Sf4
        • 2.Qd4#
      • 1...Sf2
        • 2.Qe5#
      • 1...Sh2
        • 2.Qe5#
      • 1...Se3
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sh6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • B(b);OGATE::QAB1(A)
    • S(a);N_GUARD::S(D)
    • S(a);N_GUARD::S(D),XS(a)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • B(b);XQ(A)
  • Actual
    • Q(A);
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(D)::QAB1(A)
      • S(a);XQ(A)::S(D),XS(a)
      • S(c);XB(F)::S(D),XS(c)
      • B(b);OGATE::QAB1(A)
      • S(a);N_GUARD::QAR1(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
      • S(c);N_GUARD::QAR1(A)
      • S(c);N_GUARD::QAR1(A),XS(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).