MESON Chess Problem Database

Problem Display
PID: 39962 (k1n5/BRK5/8/8/8/8/8/8 w - - 0 1)

Ling, John Francis

Problem Observer, 1972

k1n5/BRK5/8/8/8/8/8/8

#2

3 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Sxa7
      • 2.Rb8#
  • Keys
    • 1.Bb8!
      • 1...Sb6
        • 2.Ra7#
      • 1...Sd6
        • 2.Ra7#
      • 1...Sa7
        • 2.Rxa7#
      • 1...Se7
        • 2.Ra7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK,XB(A)::R1(B)
  • Actual
    • B(A);
    • Vars
      • S(b);N_GUARD::R1(B)
      • S(b);N_GUARD::R1(B),XS(b)
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