MESON Chess Problem Database

Problem Display
PID: 39386 (7b/8/2N5/np1QB3/1pqP2K1/1pkB4/1N2RPP1/2r5 w - - 0 1)

Lindner, Laszlo

Pesti Naplo, 1933

7b/8/2N5/np1QB3/1pqP2K1/1pkB4/1N2RPP1/2r5

#2

10 + 8

4080 Mattbilder eines Lebens 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4+
      • 2.Qxd4#
  • Tries
    • 1.Sd1+?
      • 1...Kxd3
        • 2.Qf3#
        • 2.Qe4#
      • 1...Rxd1!
    • 1.Sa4+?
      • 1...Kxd3
        • 2.Qf3#
        • 2.Qe4#
      • 1...bxa4!
    • 1.Bxc4?
      • threat
        • 2.Qf3#
      • 1...Rc2
        • 2.Sd1#
      • 1...Rd1
        • 2.Sxd1#
      • 1...Sxc4!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Bxc4#
      • 1...Qe6+
        • 2.Bf5#
      • 1...Qg8+
        • 2.Bg6#
      • 1...Qxd4+
        • 2.Be4#
      • 1...Qxd3
        • 2.Qxd3#
      • 1...Qxc6
        • 2.Be4#
      • 1...Rc2
        • 2.Sd1#
      • 1...Qd5
        • 2.Be4#
      • 1...Qf7
        • 2.Bf5#
      • 1...Qc5
        • 2.Bb1#
        • 2.Bc4#
        • 2.Be4#
        • 2.Bxb5#
        • 2.Bf5#
        • 2.Bg6#
        • 2.Bh7#
      • 1...Rd1
        • 2.Sxd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • Q(e);CHECK,OGATE,P_SPINQ(e),XP(F)::QAB1(H),XQ(e)
  • Tries
    • Try
      • S(A);CHECK
      • Refutation
        • R(a);XS(A)
    • Try
      • S(A);CHECK
      • Refutation
        • P(g);XS(A)
    • Try
      • B(E);N_SPINP(F),XQ(e)
      • Threat
        • QAR(H)
      • Vars
        • R(a);N_GUARD::S(A)
        • R(a);N_GUARD::S(A),XR(a)
      • Refutation
        • S(f);XB(E)
  • Actual
    • Q(H);
    • Threat
      • QAR(H)+B(E),XQ(e)
    • Vars
      • Q(e);CHECK,N_GUARD,N_PINP(F)::QAR(H)+B(E)
      • Q(e);CHECK,N_GUARD,P_SPINQ(e),XP(F)::QAR(H)+B(E)
      • Q(e);N_PINP(F),OGATE,P_SPINQ(e),XB(E)::QAR1(H),XQ(e)
      • Q(e);N_GUARD,N_PINP(F),XS(J)::QAR(H)+B(E)
      • R(a);N_GUARD::S(A)
      • Q(e);N_GUARD,N_PINP(F)::QAR(H)+B(E)
      • R(a);N_GUARD::S(A),XR(a)
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).