MESON Chess Problem Database

Problem Display
PID: 255073 (3b4/3NQ3/r6n/2B1PR1P/1RBNk1p1/q2p2P1/2P3K1/1b6 w - - 0 1)

Lobusov, Andrey Jakovlevic

Probleemblad, 1984

3b4/3NQ3/r6n/2B1PR1P/1RBNk1p1/q2p2P1/2P3K1/1b6

#2

12 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3?
      • threat
        • 2.Rf4#
      • 1...Kxf5
        • 2.Bxd3#
      • 1...Sxf5
        • 2.Sd2#
      • 1...Qc1
        • 2.Be6#
      • 1...Rf6!
    • 1.Se6?
      • threat
        • 2.Rf4#
      • 1...Kxf5
        • 2.Qh7#
      • 1...Sxf5
        • 2.Sg5#
      • 1...Qc1!
    • 1.Bxd3+?
      • 1...Ke3
        • 2.Sb3#
        • 2.Sf3#
      • 1...Kd5
        • 2.c4#
      • 1...Qxd3!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Rf4#
      • 1...Kxf5
        • 2.Be6#
      • 1...Sxf5
        • 2.Sf6#
      • 1...Qc1
        • 2.Be6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • R1(I)
      • Vars
        • K(d);N_GUARD,S_FLIGHT,XR(I)::B(E),XP(c)
        • S(g);SBLOCK,XR(I)::S(F)
        • Q(b);N_GUARD::R(D)+B(E)
      • Refutation
        • R(f);
    • Try
      • S(F);
      • Threat
        • R1(I)
      • Vars
        • K(d);OGATEB,S_FLIGHT,XR(I)::QAB(L)
        • S(g);SBLOCK,XR(I)::S(F)
      • Refutation
        • Q(b);
    • Try
      • B(E);CHECK,XP(c)
      • Vars
        • K(d);N_GUARD,S_CUTB(a),S_CUTQ(b),S_FLIGHT::P(A)
      • Refutation
        • Q(b);XB(E)
  • Actual
    • S(F);
    • Threat
      • R1(I)
    • Vars
      • K(d);S_CUTQ(b),S_FLIGHT,XR(I)::B(E)
      • S(g);SBLOCK,XR(I)::S(K)
      • Q(b);N_GUARD::R(D)+B(E)
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).