MESON Chess Problem Database

Problem Display
PID: 75332 (8/8/3P3P/B3k3/5N1P/6N1/5Q1K/8 w - - 0 1)

Dvorak, E

1st Prize, Nuova Rivista degli Scacchi, 1881

8/8/3P3P/B3k3/5N1P/6N1/5Q1K/8

#2

8 + 1

6169 Dal classico agli albori del moderno compositori scacchisti 2007
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Qe1+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kxf4
        • 2.Qe4#
      • 1...Kf6
        • 2.Qe6#
        • 2.Qe7#
      • 1...Kxd6!
    • 1.Qe3+?
      • 1...Kf6
        • 2.Qe6#
        • 2.Qe7#
      • 1...Kxd6!
    • 1.Qc5+?
      • 1...Kf6
        • 2.Qf5#
      • 1...Kxf4!
    • 1.Qa7?
      • 1...Kxd6
        • 2.Qc7#
      • 1...Kf6
        • 2.Bc3#
        • 2.Qe7#
        • 2.Qg7#
      • 1...Kxf4!
  • Keys
    • 1.Qc2!
      • 1...Kd4
        • 2.Qc3#
      • 1...Kxf4
        • 2.Qe4#
      • 1...Kxd6
        • 2.Qc7#
      • 1...Kf6
        • 2.Qf5#

This anticipates 102714(1993)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);S_FLIGHT,XS(D)::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
    • Try
      • Q(A);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XP(G)::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XS(D)
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);S_FLIGHT,XS(D)::QAR1(A)
      • K(a);OGATEB,S_FLIGHT,XP(G)::QAB1(A)
      • K(a);S_FLIGHT::QAR1(A)
HTML5 logo

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).