MESON Chess Problem Database

Problem Display
PID: 273138 (B7/K4R2/1R2pp1N/4kq2/6p1/8/4N3/8 w - - 0 1)

Barron, Philip

Probleemblad, 1952

B7/K4R2/1R2pp1N/4kq2/6p1/8/4N3/8

#2

6 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Sxf5?
      • threat
        • 2.Rb5#
      • 1...exf5
        • 2.Re7#
      • 1...Kxf5!
  • Keys
    • 1.Re7!
      • threat
        • 2.Sf7#
      • 1...Qb1
        • 2.Rbxe6#
        • 2.Rexe6#
      • 1...Qc2
        • 2.Rbxe6#
        • 2.Rexe6#
      • 1...Qd3
        • 2.Rbxe6#
        • 2.Rexe6#
      • 1...Qe4
        • 2.Rbxe6#
        • 2.Rexe6#
      • 1...Qg6
        • 2.Rbxe6#
        • 2.Rexe6#
      • 1...Qh7
        • 2.Rxe6#
      • 1...Qf1
        • 2.Rbxe6#
        • 2.Rexe6#
      • 1...Qf2
        • 2.Rxe6#
      • 1...Qf3
        • 2.Rbxe6#
        • 2.Rexe6#
      • 1...Qf4
        • 2.Rbxe6#
        • 2.Rexe6#
      • 1...Qg5
        • 2.Rbxe6#
        • 2.Rexe6#
      • 1...Qh5
        • 2.Rbxe6#
        • 2.Rexe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);XQ(c)
      • Threat
        • R(B)
      • Vars
        • P(d);OGATEB,SBLOCK,XS(C)::R(E)
      • Refutation
        • K(b);P-FLIGHT,P_SPINP(e),XS(C)
  • Actual
    • R(E);P_PINP(d)
    • Threat
      • S(C)
    • Vars
      • Q(c);N_GUARD,P_PINR(E)::R1(B),XP(d)
      • Q(c);N_GUARD,P_PINR(B)::R1(E),XP(d)
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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).