MESON Chess Problem Database

Problem Display
PID: 10799 (2Q3B1/8/6p1/2pnp2p/4k3/bN6/2P1NK2/5n1b w - - 0 1)

Klug, Helmut

Zucker, Manfred

2nd HM., Sahovski Glasnik, 1968

2Q3B1/8/6p1/2pnp2p/4k3/bN6/2P1NK2/5n1b

#2

6 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Sxc5#
    • 1...Bb2
      • 2.Sxc5#
    • 1...Sd2
      • 2.Sxd2#
    • 1...Sh2
      • 2.Sd2#
    • 1...Sfe3
      • 2.Sd2#
    • 1...Sg3
      • 2.Sd2#
    • 1...Sb4
      • 2.Sxc5#
    • 1...Sf4
      • 2.Sc3#
    • 1...g5
      • 2.Bh7#
  • Tries
    • 1.Qg4+?
      • 1...Sf4
        • 2.Sc3#
      • 1...hxg4!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Bxd5#
      • 1...Sfe3
        • 2.Sd2#
      • 1...Sc3
        • 2.Qd3#
      • 1...Sde3
        • 2.Qd3#
      • 1...Sb4
        • 2.Sxc5#
      • 1...Sf4
        • 2.Sc3#
      • 1...Sb6
        • 2.Qd3#
      • 1...Sf6
        • 2.Qd3#
      • 1...Sc7
        • 2.Qd3#
      • 1...Se7
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 6
  • Sets
    • B(c);N_GUARD::S(D),XP(e)
    • S(a);N_GUARD::S(D),XS(a)
    • S(a);N_GUARD::S(D)
    • S(f);S_CUTB(c)::S(D),XP(e)
    • S(f);N_GUARD,SBLOCK::S(B)
    • P(i);OGATEB::B(F)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • S(f);P_SPINS(f)::S(B)
      • Refutation
        • P(h);XQ(E)
  • Actual
    • Q(E);
    • Threat
      • B(F),XS(f)
    • Vars
      • S(a);N_GUARD::S(D)
      • S(f);OGATE::QAB1(E)
      • S(f);S_CUTB(c)::S(D),XP(e)
      • S(f);N_GUARD,SBLOCK::S(B)
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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).