MESON Chess Problem Database

Problem Display
PID: 224748 (8/K1pp4/2k5/5N2/1P2n3/4Q2B/3p4/3R4 w - - 0 1)

L'Hermet, Johann Georg Rudolf

Wiener Hausfrauen-Zeitung, 1887

8/K1pp4/2k5/5N2/1P2n3/4Q2B/3p4/3R4

#2

6 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Qc5#
    • 1...Sc3
      • 2.Qc5#
    • 1...Sg3
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sg5
      • 2.Qc5#
    • 1...Sd6
      • 2.Qc5#
    • 1...Sf6
      • 2.Qc5#
  • Tries
    • 1.Qxe4+?
      • 1...d5
        • 2.Qe8#
      • 1...Kb5!
  • Keys
    • 1.Qb3!
      • 1...Kb5
        • 2.Sd4#
      • 1...d5
        • 2.Qa4#
      • 1...d6
        • 2.Sd4#
      • 1...Sf2
        • 2.Qc4#
      • 1...Sc3
        • 2.Qc4#
      • 1...Sg3
        • 2.Qc4#
      • 1...Sc5
        • 2.b5#
      • 1...Sg5
        • 2.Qc4#
      • 1...Sd6
        • 2.Sd4#
      • 1...Sf6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 7
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::QAR1(B)
    • S(b);N_GUARD::QAR1(B),XS(b)
  • Tries
    • Try
      • Q(B);CHECK,XS(b)
      • Vars
        • P(e);OGATEB,P_SPINP(e),SBLOCK::QAB(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(c);S_FLIGHT::S(E)
      • P(e);SBLOCK::QAB(B)
      • P(e);SBLOCK::S(E)
      • S(b);N_GUARD::QAR2(B)
      • S(b);SBLOCK::P(D)
      • S(b);SBLOCK::S(E)
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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).