MESON Chess Problem Database

Problem Display
PID: 19038 (8/K2n2R1/2pkp3/N6R/P3P2B/4P3/8/8 w - - 0 1)

Dean, EF

Southern Daily Post, 1911

8/K2n2R1/2pkp3/N6R/P3P2B/4P3/8/8

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Sc4#
    • 1...Se5
      • 2.Sb7#
    • 1...Sb6
      • 2.Sb7#
    • 1...Sf6
      • 2.Sc4#
      • 2.Sb7#
    • 1...Sb8
      • 2.Sc4#
      • 2.Sb7#
    • 1...Sf8
      • 2.Sc4#
      • 2.Sb7#
  • Tries
    • 1.Bg3+?
      • 1...Se5
        • 2.Sb7#
      • 1...e5!
  • Keys
    • 1.Rc5!
      • 1...Kxc5
        • 2.Be7#
      • 1...Kc7
        • 2.Rxc6#
      • 1...Sxc5
        • 2.Sc4#
      • 1...e5
        • 2.Rxc6#
      • 1...Se5
        • 2.Sb7#
      • 1...Sb6
        • 2.Sb7#
      • 1...Sf6
        • 2.Sb7#
      • 1...Sb8
        • 2.Sb7#
      • 1...Sf8
        • 2.Sb7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(d);::S(E)
  • Tries
    • Try
      • B(D);CHECK
      • Vars
        • S(d);P_SPINS(d)::S(E)
      • Refutation
        • P(c);P_SPINP(c)
  • Actual
    • R(F);
    • Vars
      • K(b);S_FLIGHT,XR(F)::B(D)
      • K(b);P_SPINP(a),P_SPINS(d),S_FLIGHT::R1(F),XP(a)
      • S(d);SBLOCK,XR(F)::S(E)
      • P(c);SBLOCK::R1(F),XP(a)
      • S(d);::S(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).