MESON Chess Problem Database

Problem Display
PID: 287587 (5RK1/2p2N2/2r3p1/2Pbn2N/R1B1k1P1/3pP3/3P2P1/4b3 w - - 0 1)

Neale, Harry R

The Problemist, 1944

5RK1/2p2N2/2r3p1/2Pbn2N/R1B1k1P1/3pP3/3P2P1/4b3

#2

11 + 8

6490 yacpdb 2026

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc5
      • 2.Sf6#
    • 1...Re6
      • 2.Sg5#
    • 1...Rf6
      • 2.Sxf6#
    • 1...Bg3
      • 2.Sxg3#
    • 1...Be6
      • 2.Sf6#
  • Keys
    • 1.Re8!
      • threat
        • 2.Rxe5#
      • 1...Bxf7+
        • 2.Bxf7#
      • 1...Re6
        • 2.Sg5#
      • 1...Bg3
        • 2.Sxg3#
      • 1...Be6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(f);N_GUARD,XP(G)::S(H)
    • R(f);N_PINS(I)::S(I)
    • R(f);N_GUARD::S(H),XR(f)
    • B(a);N_GUARD::S(H),XB(a)
    • B(d);S_CUTR(f)::S(H)
  • Actual
    • R(J);P_PINS(e)
    • Threat
      • R1(J),XS(e)
    • Vars
      • B(d);CHECK,OGATE,XS(I)::R(D)+B(E),XB(d)
      • R(f);N_PINS(I),N_SPINS(e)::S(I)
      • B(a);N_GUARD::S(H),XB(a)
      • B(d);N_SPINS(e),S_CUTR(f)::S(H)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).