MESON Chess Problem Database

Problem Display
PID: 157050 (5B1K/1Q1BN2p/2p1Pk2/3p1nN1/5Ppr/8/8/b7 w - - 0 1)

Giacobbe, Daniele

Best Problems, 2007

5B1K/1Q1BN2p/2p1Pk2/3p1nN1/5Ppr/8/8/b7

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sh6
      • 2.Sxh7#
    • 1...d4
      • 2.Se4#
    • 1...h5
      • 2.Sh7#
    • 1...h6
      • 2.Sh7#
  • Tries
    • 1.Be8?
      • threat
        • 2.Sg8#
      • 1...Se3
        • 2.Bg7#
      • 1...Sg3
        • 2.Bg7#
      • 1...Sd4
        • 2.Bg7#
      • 1...Sd6
        • 2.Bg7#
      • 1...Sh6
        • 2.Bg7#
      • 1...Sg7
        • 2.Bxg7#
      • 1...Sxe7!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qxf5#
      • 1...Sxe7
        • 2.Bg7#
      • 1...Se3
        • 2.Sg8#
      • 1...Sg3
        • 2.Sg8#
      • 1...Sd4
        • 2.Sg8#
      • 1...Sd6
        • 2.Sg8#
      • 1...Sh6
        • 2.Sxh7#
      • 1...Sg7
        • 2.Sg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • S(e);S_CUTR(c)::S(B),XP(h)
    • P(d);N_GUARD::S(B)
    • P(h);S_CUTR(c)::S(B)
  • Tries
    • Try
      • B(E);
      • Threat
        • S(F)
      • Vars
        • S(e);N_GUARD::B(G)
        • S(e);N_GUARD::B(G),XS(e)
      • Refutation
        • S(e);XS(F)
  • Actual
    • Q(D);
    • Threat
      • QAR1(D),XS(e)
    • Vars
      • S(e);N_GUARD,SBLOCK,XS(F)::B(G)
      • S(e);::S(F)
      • S(e);S_CUTR(c)::S(B),XP(h)
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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).