MESON Chess Problem Database

Problem Display
PID: 119913 (3B3Q/p2P1p2/p2N1q2/P1k5/3N1P2/PB3P2/2K5/8 w - - 0 1)

Seidenschnur, P

Deutsches Wochenschach, 1899

3B3Q/p2P1p2/p2N1q2/P1k5/3N1P2/PB3P2/2K5/8

#2

11 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh4
      • 2.Se4#
      • 2.Sb7#
      • 2.Qe5#
    • 1...Qe5
      • 2.Qxe5#
    • 1...Qg5
      • 2.Se4#
      • 2.Sb7#
    • 1...Qe7
      • 2.Sb7#
    • 1...Qxd8
      • 2.Se4#
      • 2.Sb7#
      • 2.Qe5#
    • 1...Qxf4
      • 2.Sb7#
    • 1...Qe6
      • 2.Sb7#
    • 1...Qh6
      • 2.Se4#
      • 2.Sb7#
      • 2.Qe5#
  • Keys
    • 1.Be7!
      • 1...Qf5+
        • 2.Se4#
        • 2.S6xf5#
      • 1...Qg6+
        • 2.Se4#
      • 1...Kxd4
        • 2.Sf5#
      • 1...Qxd4
        • 2.Qc8#
      • 1...Qxe7
        • 2.Sb7#
      • 1...Qxh8
        • 2.S6b5#
        • 2.S6f5#
      • 1...Qxf4
        • 2.Se4#
        • 2.Sb7#
      • 1...Qxd6
        • 2.Qe5#
      • 1...Qh4
        • 2.Se4#
        • 2.Sb7#
        • 2.Qe5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qg5
        • 2.Se4#
        • 2.Sb7#
      • 1...Qg7
        • 2.S6b5#
        • 2.S6f5#
      • 1...Qe6
        • 2.Se4#
        • 2.Sb7#
      • 1...Qh6
        • 2.Se4#
        • 2.Sb7#
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(c);OGATE::QAR2(K),XQ(c)
    • Q(c);::S(H)
    • Q(c);XP(F)::S(H)
  • Actual
    • B(J);
    • Vars
      • Q(c);CHECK::B(J)+S(H),DCHECK
      • K(a);P_SPINQ(c),S_FLIGHT,XS(E)::S(H)
      • Q(c);SBLOCK,XS(E)::QAR(K)
      • Q(c);XB(J)::S(H)
      • Q(c);OGATE,P_SPINQ(c),XS(H)::QAR2(K)
      • Q(c);OGATE::QAR2(K),XQ(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).