MESON Chess Problem Database

Problem Display
PID: 273400 (5rbn/5p2/R3P1p1/2P1kNB1/2P5/4K3/8/5R2 w - - 0 1)

Hersom, Donald H

The Problemist, 1932

5rbn/5p2/R3P1p1/2P1kNB1/2P5/4K3/8/5R2

#2

8 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Sh4?
      • threat
        • 2.Bf6#
      • 1...f5
        • 2.Sf3#
      • 1...f6
        • 2.Bf4#
      • 1...fxe6!
    • 1.Sh6?
      • threat
        • 2.Sg4#
        • 2.Bf6#
      • 1...fxe6
        • 2.Sg4#
      • 1...f6
        • 2.Sg4#
        • 2.Bf4#
      • 1...f5!
    • 1.Se7?
      • threat
        • 2.Bf6#
      • 1...fxe6
        • 2.Sc6#
      • 1...f6
        • 2.Bf4#
      • 1...f5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Bf6#
      • 1...fxe6
        • 2.Sc6#
      • 1...f5
        • 2.Sf3#
      • 1...f6
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • B(F)
      • Vars
        • P(c);SBLOCK::S(E)
        • P(c);SBLOCK::B(F)
      • Refutation
        • P(c);XP(H)
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);XP(H)::S(E)
      • Refutation
        • P(c);
    • Try
      • S(E);
      • Threat
        • B(F)
      • Vars
        • P(c);SBLOCK,XP(H)::S(E)
        • P(c);SBLOCK::B(F)
      • Refutation
        • P(c);
  • Actual
    • S(E);
    • Threat
      • B(F)
    • Vars
      • P(c);SBLOCK,XP(H)::S(E)
      • P(c);SBLOCK::S(E)
      • P(c);SBLOCK::B(F)
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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).