MESON Chess Problem Database

Problem Display
PID: 141223 (1r1b2n1/3Q4/7n/2pNN3/4k2p/1B6/6P1/B2b3K w - - 0 1)

Smutny, Jan

Source?, 1910

1r1b2n1/3Q4/7n/2pNN3/4k2p/1B6/6P1/B2b3K

#2

7 + 8

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Bc2
      • 2.Bxc2#
    • 1...Bf3
      • 2.Bc2#
      • 2.gxf3#
    • 1...Bg4
      • 2.Bc2#
    • 1...Bh5
      • 2.Bc2#
    • 1...Sg4
      • 2.Qh7#
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sf2#
        • 2.Sxc5#
      • 1...Rb5
        • 2.Sf2#
      • 1...Rc8
        • 2.Sf2#
      • 1...Bb6
        • 2.Sf2#
      • 1...Be7
        • 2.Sf2#
      • 1...Sg4
        • 2.Sxc5#
        • 2.Qh7#
      • 1...c4
        • 2.Sf2#
        • 2.Sc5#
      • 1...Kxd3!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Sf2#
      • 1...Kd3
        • 2.Sc3#
      • 1...Bxg4
        • 2.Bc2#
      • 1...Sxg4
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::B(D),XB(a)
    • B(a);N_GUARD::B(D)
    • S(e);N_GUARD::QAB(G)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);::S(F)
        • B(g);::S(F)
      • Refutation
        • K(b);S_FLIGHT,XS(F)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • K(b);S_FLIGHT::QAR(G)+S(E)
      • B(a);N_GUARD,XS(F)::B(D)
      • S(e);N_GUARD,XS(F)::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).