MESON Chess Problem Database

Problem Display
PID: 51048 (5b2/8/K1k5/1N1NRB2/3P4/1P2n3/2p5/8 w - - 0 1)

Lawther, S

Burnley Express, 1880

5b2/8/K1k5/1N1NRB2/3P4/1P2n3/2p5/8

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bb4
      • 2.Sxb4#
    • 1...Bd6
      • 2.Sa7#
    • 1...Bh6
      • 2.Sb4#
      • 2.Se7#
    • 1...Be7
      • 2.Sxe7#
    • 1...Bg7
      • 2.Sb4#
      • 2.Se7#
  • Keys
    • 1.Re7!
      • threat
        • 2.Sb4#
      • 1...Kxd5
        • 2.Be4#
      • 1...Bxe7
        • 2.Sxe7#
      • 1...Sxd5
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(d);N_GUARD::S(D),XB(d)
    • B(d);SBLOCK::S(C)
  • Actual
    • R(E);
    • Threat
      • S(D)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::B(F)
      • B(d);XR(E)::S(D),XB(d)
      • S(b);SBLOCK,XS(D)::B(F)
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