MESON Chess Problem Database

Problem Display
PID: 51087 (8/1B6/3pr3/n1bpk3/3N1R2/1p6/2PBP2n/4R2K w - - 0 1)

Nix, John Gilbert

Burnley Express, 1881

8/1B6/3pr3/n1bpk3/3N1R2/1p6/2PBP2n/4R2K

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sf1
      • 2.Sf3#
    • 1...Sf3
      • 2.Sxf3#
      • 2.exf3#
    • 1...Sg4
      • 2.Sf3#
    • 1...Sc4
      • 2.Sc6#
    • 1...Sc6
      • 2.Sxc6#
    • 1...Sxb7
      • 2.Sc6#
  • Keys
    • 1.e4!
      • threat
        • 2.exd5#
      • 1...Kxd4
        • 2.e5#
      • 1...Bxd4
        • 2.Rf5#
      • 1...Sxb7
        • 2.Sc6#
      • 1...dxe4
        • 2.Rexe4#
      • 1...Sf1
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...Sg4
        • 2.Sf3#
      • 1...Sc4
        • 2.Sc6#
      • 1...Sc6
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(F)
    • S(c);N_GUARD::S(F)
    • S(c);N_GUARD::S(F),XS(c)
    • S(c);N_GUARD,XB(H)::S(F)
  • Actual
    • P(E);
    • Threat
      • R(A)+P(E),XP(e)
    • Vars
      • K(f);OGATE,S_FLIGHT,XS(F)::R(G)+P(E)
      • B(d);SBLOCK,XS(F)::R1(G)
      • S(c);N_GUARD,XB(H)::S(F)
      • P(e);OGATE,P_SPINP(e),XP(E)::R1(A),XP(e)
      • S(a);N_GUARD::S(F)
      • S(a);N_GUARD::S(F),XS(a)
      • S(c);N_GUARD::S(F)
      • S(c);N_GUARD::S(F),XS(c)
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