MESON Chess Problem Database

Problem Display
PID: 10012 (2K5/1N6/Q3N2p/R2Bk3/4P3/2np2P1/p7/BbrrR3 w - - 0 1)

Burger, Robert Eugene

Problem (Zagreb), 1961

2K5/1N6/Q3N2p/R2Bk3/4P3/2np2P1/p7/BbrrR3

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bc2
      • 2.Bxc3#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Sf3#
      • 1...Kd4
        • 2.Sf3#
        • 2.Qf6#
      • 1...hxg5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Sf3#
      • 1...Se2+
        • 2.Sc6#
      • 1...Sa4+
        • 2.Sc6#
      • 1...Sxe4+
        • 2.Bc4#
      • 1...Sb5+
        • 2.Sc6#
      • 1...Sxd5+
        • 2.Sc2#
      • 1...Kxd4
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(a);S_CUTR(b)::B(A),XS(e)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(H)
      • Refutation
        • P(h);XS(H)
  • Actual
    • S(H);N_PINS(e)
    • Threat
      • S(H)
    • Vars
      • S(e);CHECK::B(A)+S(H),DCHECK
      • S(e);CHECK,N_GUARD,P_SPINS(e),XP(D)::R(E)+B(F)
      • S(e);CHECK,P_SPINS(e),XB(F)::B(A)+S(H)
      • K(g);P_SPINS(e),S_FLIGHT,XS(H)::QAB(G)
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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).