MESON Chess Problem Database

Problem Display
PID: 39594 (8/1n4p1/6Q1/3k4/2p1N1P1/2K1R1P1/4P3/8 w - - 0 1)

Lindner, Laszlo

Zaszlonk, 1933

8/1n4p1/6Q1/3k4/2p1N1P1/2K1R1P1/4P3/8

#2

7 + 4

4080 Mattbilder eines Lebens 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qf5#
    • 1...Sa5
      • 2.Qd6#
    • 1...Sc5
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sd8
      • 2.Qd6#
  • Tries
    • 1.Rd3+?
      • 1...Ke5
        • 2.Qf5#
        • 2.Qe8#
      • 1...cxd3!
    • 1.Qf7+?
      • 1...Ke5
        • 2.Qf5#
      • 1...Kc6!
    • 1.Qc6+?
      • 1...Ke5
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc5#
        • 2.Sg5#
        • 2.Sf6#
      • 1...Kxc6!
    • 1.g5?
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sa5
        • 2.Qd6#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...Ke5!
  • Keys
    • 1.Qb6!
      • 1...Ke5
        • 2.Sf6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sa5
        • 2.Qd6#
      • 1...Sc5
        • 2.Qd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...g5
        • 2.Sf6#
      • 1...g6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR1(G)
    • S(c);N_GUARD::QAR1(G)
    • S(c);N_GUARD::QAR1(G),XS(c)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • P(a);XR(C)
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(G)
    • Try
      • P(F);
      • Vars
        • S(c);N_GUARD::QAR1(G),XS(c)
        • S(c);N_GUARD::QAR1(G)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(G);
    • Vars
      • K(b);P-FLIGHT::R(C)+S(E)
      • S(c);N_GUARD::QAR1(G),XS(c)
      • S(c);N_GUARD::QAR1(G)
      • P(d);N_GUARD::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).