MESON Chess Problem Database

Problem Display
PID: 81467 (8/1N5K/3p4/1p6/nbk5/4PB2/1RP5/1N3R2 w - - 0 1)

Allison, Christopher John

The Field, 1951

(First published on Sat Nov 17 1951)

8/1N5K/3p4/1p6/nbk5/4PB2/1RP5/1N3R2

#2

8 + 5

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3
      • 2.Sa3#
    • 1...Bc5
      • 2.Sa5#
    • 1...Sc3
      • 2.Sd2#
    • 1...Sc5
      • 2.Sxd6#
    • 1...d5
      • 2.Be2#
  • Tries
    • 1.Bh1?
      • threat
        • 2.Rf4#
      • 1...Bc3
        • 2.Sa3#
      • 1...Bc5
        • 2.Sa5#
      • 1...Sc3
        • 2.Sd2#
      • 1...Sc5
        • 2.Sxd6#
      • 1...d5!
    • 1.Bg2?
      • threat
        • 2.Rf4#
      • 1...Bc3
        • 2.Sa3#
      • 1...Bc5
        • 2.Sa5#
      • 1...Sc3
        • 2.Sd2#
      • 1...Sc5
        • 2.Sxd6#
      • 1...d5!
    • 1.Bc6?
      • threat
        • 2.Rf4#
      • 1...Bc3
        • 2.Sa3#
      • 1...Bc5
        • 2.Sa5#
      • 1...Sc3
        • 2.Sd2#
      • 1...Sc5
        • 2.Sxd6#
      • 1...d5!
    • 1.Rd1?
      • threat
        • 2.Be2#
        • 2.Bd5#
        • 2.Rd4#
      • 1...Sxb2
        • 2.Bd5#
        • 2.Rd4#
      • 1...Bc3
        • 2.Sa3#
        • 2.Be2#
        • 2.Bd5#
      • 1...Bc5
        • 2.Sa5#
        • 2.Be2#
        • 2.Bd5#
      • 1...Sc3
        • 2.Sd2#
        • 2.Rd4#
      • 1...Sc5
        • 2.Sxd6#
        • 2.Bd5#
        • 2.Rd4#
      • 1...Sb6
        • 2.Be2#
        • 2.Rd4#
      • 1...d5
        • 2.Be2#
        • 2.Bxd5#
        • 2.Rd4#
      • 1...Bd2!
    • 1.Rh1?
      • threat
        • 2.Rh4#
      • 1...Bc3
        • 2.Sa3#
      • 1...Bc5
        • 2.Sa5#
      • 1...Sc3
        • 2.Sd2#
      • 1...Sc5
        • 2.Sxd6#
      • 1...d5
        • 2.Be2#
      • 1...Be1!
  • Keys
    • 1.Rg1!
      • threat
        • 2.Rg4#
      • 1...Bc3
        • 2.Sa3#
      • 1...Bc5
        • 2.Sa5#
      • 1...Sc3
        • 2.Sd2#
      • 1...Sc5
        • 2.Sxd6#
      • 1...d5
        • 2.Be2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD,SBLOCK::S(A)
    • B(b);N_GUARD,SBLOCK::S(G)
    • S(a);SBLOCK,S_CUTB(b)::S(A)
    • S(a);SBLOCK,S_CUTB(b)::S(G),XP(e)
    • P(e);SBLOCK::B(F)
  • Tries
    • Try
      • B(F);
      • Threat
        • R(B)
      • Vars
        • B(b);N_GUARD,SBLOCK::S(A)
        • B(b);N_GUARD,SBLOCK::S(G)
        • S(a);SBLOCK,S_CUTB(b)::S(A)
        • S(a);SBLOCK,S_CUTB(b)::S(G),XP(e)
      • Refutation
        • P(e);
    • Try
      • B(F);
      • Threat
        • R(B)
      • Vars
        • B(b);N_GUARD,SBLOCK::S(A)
        • B(b);N_GUARD,SBLOCK::S(G)
        • S(a);SBLOCK,S_CUTB(b)::S(A)
        • S(a);SBLOCK,S_CUTB(b)::S(G),XP(e)
      • Refutation
        • P(e);
    • Try
      • B(F);
      • Threat
        • R(B)
      • Vars
        • B(b);N_GUARD,SBLOCK::S(A)
        • B(b);N_GUARD,SBLOCK::S(G)
        • S(a);SBLOCK,S_CUTB(b)::S(A)
        • S(a);SBLOCK,S_CUTB(b)::S(G),XP(e)
      • Refutation
        • P(e);
    • Try
      • R(B);
      • Threat
        • DUALS(3)
      • Refutation
        • B(b);
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • B(b);N_GUARD,SBLOCK::S(A)
        • B(b);N_GUARD,SBLOCK::S(G)
        • S(a);SBLOCK,S_CUTB(b)::S(A)
        • S(a);SBLOCK,S_CUTB(b)::S(G),XP(e)
        • P(e);SBLOCK::B(F)
      • Refutation
        • B(b);
  • Actual
    • R(B);
    • Threat
      • R(B)
    • Vars
      • B(b);N_GUARD,SBLOCK::S(A)
      • B(b);N_GUARD,SBLOCK::S(G)
      • S(a);SBLOCK,S_CUTB(b)::S(A)
      • S(a);SBLOCK,S_CUTB(b)::S(G),XP(e)
      • P(e);SBLOCK::B(F)
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