MESON Chess Problem Database

Problem Display
PID: 39539 (8/3B1p2/8/8/1Pk1P3/3NPQ2/bPp1p1K1/rnn1B3 w - - 0 1)

Lindner, Laszlo

Zaszlonk, 1933

8/3B1p2/8/8/1Pk1P3/3NPQ2/bPp1p1K1/rnn1B3

#2

9 + 8

4080 Mattbilder eines Lebens 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Kb3
      • 2.Qxf7#
    • 1...Bb3
      • 2.Se5#
    • 1...Sb3
      • 2.Se5#
    • 1...Sxd3
      • 2.Qxf7#
  • Tries
    • 1.Bb5+?
      • 1...Kb3
        • 2.Qxf7#
      • 1...Kxb5!
    • 1.b3+?
      • 1...Kxd3
        • 2.Bb5#
      • 1...Bxb3
        • 2.Sb2#
        • 2.Se5#
      • 1...Sxb3
        • 2.Sb2#
        • 2.Se5#
      • 1...Kxb3!
  • Keys
    • 1.Qf6!
      • 1...Kb3
        • 2.Qxf7#
      • 1...Kxd3
        • 2.Qd4#
      • 1...Sxd3
        • 2.Qxf7#
      • 1...Sd2
        • 2.Qc3#
      • 1...Bb3
        • 2.Se5#
        • 2.Qd4#
      • 1...Sa3
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sb3
        • 2.Se5#
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • K(g);S_FLIGHT::QAB(F),XP(h)
    • B(d);SBLOCK::S(D)
    • S(c);SBLOCK::S(D)
    • S(c);SBLOCK,XS(D)::QAB(F),XP(h)
  • Tries
    • Try
      • B(I);CHECK
      • Vars
        • K(g);S_FLIGHT::QAB(F),XP(h)
      • Refutation
        • K(g);S_FLIGHT,XB(I)
    • Try
      • P(B);CHECK
      • Vars
        • K(g);S_FLIGHT,XS(D)::B(I)
      • Refutation
        • K(g);S_FLIGHT,XP(B)
  • Actual
    • Q(F);
    • Vars
      • K(g);S_FLIGHT::QAB(F),XP(h)
      • K(g);S_FLIGHT,XS(D)::QAR1(F)
      • S(c);SBLOCK,XS(D)::QAB(F),XP(h)
      • S(b);N_GUARD::QAR1(F)
      • S(b);N_GUARD::QAR1(F),XS(b)
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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).