MESON Chess Problem Database

Problem Display
PID: 44012 (8/2p1P1p1/3pBp2/3PPP2/4k3/2pNPNp1/4K3/8 w - - 0 1)

Shipley, Fred

Maryland Chess Review, 1874

8/2p1P1p1/3pBp2/3PPP2/4k3/2pNPNp1/4K3/8

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...c2
      • 2.Sd2#
    • 1...g2
      • 2.Sf2#
    • 1...dxe5
      • 2.Sc5#
    • 1...fxe5
      • 2.Sg5#
  • Tries
    • 1.exd6?
      • threat
        • 2.Sc5#
      • 1...c5
        • 2.Sxc5#
      • 1...cxd6!
    • 1.exf6?
      • threat
        • 2.Sg5#
      • 1...g5
        • 2.Sxg5#
      • 1...gxf6!
  • Keys
    • 1.e8S!
      • 1...dxe5
        • 2.Sc5#
      • 1...fxe5
        • 2.Sg5#
      • 1...c2
        • 2.Sd2#
      • 1...g2
        • 2.Sf2#
      • 1...c5
        • 2.Sxd6#
      • 1...c6
        • 2.Sxd6#
      • 1...g5
        • 2.Sxf6#
      • 1...g6
        • 2.Sxf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::S(D)
    • P(b);N_GUARD::S(B)
    • P(d);N_GUARD,XP(F)::S(B)
    • P(e);N_GUARD,XP(F)::S(D)
  • Tries
    • Try
      • P(F);XP(d)
      • Threat
        • S(B)
      • Vars
        • P(f);::S(B),XP(f)
      • Refutation
        • P(f);XP(F)
    • Try
      • P(F);XP(e)
      • Threat
        • S(D)
      • Vars
        • P(g);::S(D),XP(g)
      • Refutation
        • P(g);XP(F)
  • Actual
    • P(I);
    • Vars
      • P(d);N_GUARD,XP(F)::S(B)
      • P(e);N_GUARD,XP(F)::S(D)
      • P(a);N_GUARD::S(D)
      • P(b);N_GUARD::S(B)
      • P(f);N_GUARD::S(I),XP(d)
      • P(g);N_GUARD::S(I),XP(e)
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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).