MESON Chess Problem Database

Problem Display
PID: 40201 (1K2Bb1r/2p2p2/1pp2Q2/1NNkP3/b1n2pR1/P1ppP3/8/1q2r3 w - - 0 1)

Lindner, Laszlo

2nd HM., Magyar Sakkvilag, 1942

1K2Bb1r/2p2p2/1pp2Q2/1NNkP3/b1n2pR1/P1ppP3/8/1q2r3

#2

9 + 14

4080 Mattbilder eines Lebens 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qxc6#
    • 1...Bxc5
      • 2.Sxc3#
    • 1...bxc5
      • 2.Bxc6#
  • Tries
    • 1.Qe6+?
      • 1...Kxc5
        • 2.Qxc6#
      • 1...fxe6!
    • 1.Qxf7+?
      • 1...Kxe5
        • 2.Rg5#
        • 2.Qe6#
        • 2.exf4#
      • 1...Kxc5!
    • 1.e4+?
      • 1...Kxc5
        • 2.Qxc6#
      • 1...Rxe4!
  • Keys
    • 1.Qxf4!
      • threat
        • 2.Qd4#
      • 1...Kxc5
        • 2.Qxc4#
      • 1...Bxc5
        • 2.Sxc7#
      • 1...bxc5
        • 2.Bxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(h);P-FLIGHT,XS(E)::QAR1(G),XP(j)
    • B(m);P_PINB(I),SBLOCK,XS(E)::S(D),XP(c)
    • P(i);P_PINS(D),SBLOCK,XS(E)::B(I),XP(j)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(h);P-FLIGHT,XS(E)::QAR1(G),XP(j)
      • Refutation
        • P(l);XQ(G)
    • Try
      • Q(G);CHECK,XP(l)
      • Refutation
        • K(h);P-FLIGHT,XS(E)
    • Try
      • P(B);CHECK
      • Vars
        • K(h);P-FLIGHT,XS(E)::QAR1(G),XP(j)
      • Refutation
        • R(b);XP(B)
  • Actual
    • Q(G);XP(g)
    • Threat
      • QAR1(G)
    • Vars
      • K(h);P-FLIGHT,XS(E)::QAR1(G),XS(f)
      • B(m);P_PINB(I),SBLOCK,XS(E)::S(D),XP(k)
      • P(i);P_PINS(D),SBLOCK,XS(E)::B(I),XP(l)
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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).