MESON Chess Problem Database

Problem Display
PID: 151207 (8/8/2B1p1q1/R3pkBN/3p3P/7P/4P3/K6n w - - 0 1)

Bristow, Henry

Pen & Pencil, 1887

(First published on Sat Dec 31 1887)

8/8/2B1p1q1/R3pkBN/3p3P/7P/4P3/K6n

#2

8 + 6

15239 Valois Notebooks 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Sg3#
    • 1...Sg3
      • 2.Sxg3#
    • 1...d3
      • 2.e4#
  • Keys
    • 1.Bb5!
      • threat
        • 2.Bd3#
      • 1...Ke4
        • 2.Bd3#
      • 1...Sf2
        • 2.Sg3#
      • 1...Sg3
        • 2.Sxg3#
      • 1...d3
        • 2.Bxd3#
      • 1...e4
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(G)
    • S(a);N_GUARD::S(G),XS(a)
    • P(b);N_GUARD::P(B)
  • Actual
    • B(H);N_PINP(c)
    • Threat
      • B(H)
    • Vars
      • K(d);S_FLIGHT::B(H)
      • S(a);N_GUARD::S(G)
      • S(a);N_GUARD::S(G),XS(a)
      • P(b);::B(H),XP(b)
      • P(c);OGATEB,SBLOCK::R(E)+B(H)
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