MESON Chess Problem Database

Problem Display
PID: 19066 (5k1n/2N4P/3p2P1/3K4/8/4Q3/8/8 w - - 0 1)

Moravec, Josef

Casopis ceskoslovenskych sachistu, 1912

5k1n/2N4P/3p2P1/3K4/8/4Q3/8/8

#2

5 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Se8?
      • 1...Sf7
        • 2.g7#
      • 1...Sxg6!
    • 1.Qf4+?
      • 1...Ke7
        • 2.Qxd6#
      • 1...Sf7
        • 2.Qxf7#
      • 1...Kg7!
    • 1.Qe5?
      • 1...Sxg6
        • 2.Qf6#
      • 1...Sf7
        • 2.g7#
      • 1...dxe5!
    • 1.Qe6?
      • 1...Sxg6
        • 2.Qf6#
      • 1...Sf7
        • 2.Qxf7#
      • 1...Kg7!
  • Keys
    • 1.Qg5!
      • 1...Kg7
        • 2.Se6#
      • 1...Sxg6
        • 2.Qf6#
      • 1...Sf7
        • 2.g7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • S(c);SBLOCK::P(C)
      • Refutation
        • S(c);XP(C)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A),XP(a)
        • S(c);N_GUARD,P_SPINS(c)::QAR1(A),XS(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • S(c);N_GUARD,XP(C)::QAR2(A)
        • S(c);SBLOCK::P(C)
      • Refutation
        • P(a);XQ(A)
    • Try
      • Q(A);
      • Vars
        • S(c);N_GUARD,XP(C)::QAR2(A)
        • S(c);N_GUARD::QAR1(A),XS(c)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::S(D)
      • S(c);N_GUARD,XP(C)::QAR2(A)
      • S(c);SBLOCK::P(C)
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).