MESON Chess Problem Database

Problem Display
PID: 6840 (6Q1/1P3r2/3nk3/Np1Rn3/1N5B/3p3K/3P4/8 w - - 0 1)

Apro, Laszlo

2nd Place, Breslauer Tageblatt, 1934

6Q1/1P3r2/3nk3/Np1Rn3/1N5B/3p3K/3P4/8

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qg4#
    • 1...Kd7
      • 2.Qc8#
  • Tries
    • 1.Rxe5+?
      • 1...Kd7
        • 2.Qd8#
      • 1...Kxe5!
  • Keys
    • 1.Sb3!
      • 1...Kf5
        • 2.Qg4#
      • 1...Kd7
        • 2.Qc8#
      • 1...Sxb7
        • 2.Sd4#
      • 1...Sf3
        • 2.Sc5#
      • 1...Sec4
        • 2.Sc5#
      • 1...Sg4
        • 2.Sc5#
      • 1...Sc6
        • 2.Sc5#
      • 1...Sg6
        • 2.Sc5#
      • 1...Sd7
        • 2.Sd4#
      • 1...Sdc4
        • 2.Sd4#
      • 1...Se4
        • 2.Sd4#
      • 1...Sf5
        • 2.Sc5#
      • 1...Sc8
        • 2.Sd4#
      • 1...Se8
        • 2.Sd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINR(f),P_SPINS(c),S_FLIGHT::QAB1(H)
    • K(e);N_SPINR(f),P_SPINS(d),S_FLIGHT::QAB1(H)
  • Tries
    • Try
      • R(F);CHECK,XS(c)
      • Vars
        • K(e);N_SPINR(f),S_FLIGHT::QAR1(H)
      • Refutation
        • K(e);N_SPINR(f),P-FLIGHT,XR(F)
  • Actual
    • S(E);
    • Vars
      • K(e);N_SPINR(f),P_SPINS(c),S_FLIGHT::QAB1(H)
      • K(e);N_SPINR(f),P_SPINS(d),S_FLIGHT::QAB1(H)
      • S(d);XP(G)::S(E)
      • S(c);::S(E)
      • S(c);SBLOCK::S(E)
      • S(d);::S(E)
      • S(d);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).