MESON Chess Problem Database

Problem Display
PID: 8140 (6q1/1p2N3/2p1Pb2/2P1k1nn/6pB/4Pp2/QN6/1B5K w - - 0 1)

Bakcsi, Gyorgy

The Problemist, 1995

6q1/1p2N3/2p1Pb2/2P1k1nn/6pB/4Pp2/QN6/1B5K

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe6
      • 2.Sg6#
    • 1...Qg6
      • 2.Sxg6#
    • 1...Qa8
      • 2.Sg6#
    • 1...Qb8
      • 2.Sg6#
    • 1...Qc8
      • 2.Sg6#
    • 1...Qd8
      • 2.Sg6#
    • 1...Qf8
      • 2.Sg6#
    • 1...Qh8
      • 2.Sg6#
    • 1...Se4
      • 2.Sd3#
    • 1...Sxe6
      • 2.Sc4#
    • 1...Sg3+
      • 2.Bxg3#
    • 1...Sg7
      • 2.Sg6#
      • 2.Bg3#
    • 1...b5
      • 2.Sxc6#
    • 1...b6
      • 2.Sxc6#
  • Tries
    • 1.Bg3+?
      • 1...Sf4
        • 2.Bxf4#
      • 1...Sxg3+!
  • Keys
    • 1.Be1!
      • threat
        • 2.Bc3#
      • 1...Sg3+
        • 2.Bxg3#
      • 1...Sxe6
        • 2.Sc4#
      • 1...Qd8
        • 2.Sg6#
      • 1...Se4
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 9
  • Sets
    • Q(i);N_GUARD,XP(H)::S(I)
    • Q(i);N_GUARD::S(I),XQ(i)
    • Q(i);N_GUARD::S(I)
    • S(d);SBLOCK::S(D)
    • S(d);SBLOCK,XP(H)::S(D)
    • S(e);CHECK,N_GUARD::B(F),XS(e)
    • P(h);N_GUARD::S(I),XP(f)
  • Tries
    • Try
      • B(F);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::B(F),XS(e)
      • Refutation
        • S(e);CHECK,XB(F)
  • Actual
    • B(F);
    • Threat
      • B(F)
    • Vars
      • S(e);CHECK,N_GUARD::B(F),XS(e)
      • S(d);SBLOCK,XP(H)::S(D)
      • Q(i);N_GUARD::S(I)
      • S(d);SBLOCK::S(D)
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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).