MESON Chess Problem Database

Problem Display
PID: 6168 (6b1/5p1N/2Q2P1k/4Nn1n/7R/4p3/4p3/4K3 w - - 0 1)

Knotek, Ladislav

Prager Presse, 1927

6b1/5p1N/2Q2P1k/4Nn1n/7R/4p3/4p3/4K3

#2

6 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2?
      • 1...Kxh7
        • 2.Rxh5#
      • 1...Sxh4
        • 2.Sg4#
      • 1...Sg3
        • 2.Sg4#
      • 1...Sd4
        • 2.Sg4#
      • 1...Sd6
        • 2.Sg4#
      • 1...Se7
        • 2.Sg4#
      • 1...Sg7
        • 2.Sg4#
      • 1...Bxh7!
  • Keys
    • 1.Qe4!
      • 1...Kxh7
        • 2.Rxh5#
      • 1...Bxh7
        • 2.Qf4#
      • 1...Sxh4
        • 2.Sg4#
      • 1...Sg3
        • 2.Sg4#
      • 1...Sd4
        • 2.Sg4#
      • 1...Sd6
        • 2.Sg4#
      • 1...Se7
        • 2.Sg4#
      • 1...Sg7
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Vars
        • K(e);N_SPINS(d),P-FLIGHT,P_SPINS(c),XS(F)::R(B),XS(d)
        • S(c);N_SPINS(d),XR(B)::S(C)
        • S(c);::S(C)
      • Refutation
        • B(g);XS(F)
  • Actual
    • Q(D);
    • Vars
      • K(e);N_SPINS(d),P-FLIGHT,P_SPINS(c),XS(F)::R(B),XS(d)
      • B(g);SBLOCK,XS(F)::QAB(D)
      • S(c);N_SPINS(d),XR(B)::S(C)
      • S(c);::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).