MESON Chess Problem Database

Problem Display
PID: 257927 (1K1kB3/1p3p1p/6bN/8/7b/B5p1/2p1R3/8 w - - 0 1)

Andrade, Barry Jack da Costa

British Chess Magazine, 1934

1K1kB3/1p3p1p/6bN/8/7b/B5p1/2p1R3/8

#2

5 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bd3
      • 2.Sxf7#
    • 1...Bf5
      • 2.Sxf7#
  • Tries
    • 1.Ba4?
      • threat
        • 2.Re8#
      • 1...Be7
        • 2.Bxe7#
      • 1...Be4
        • 2.Sxf7#
      • 1...f5
        • 2.Rd2#
      • 1...f6
        • 2.Be7#
      • 1...b5!
    • 1.Bc6?
      • threat
        • 2.Re8#
      • 1...Be7
        • 2.Bxe7#
      • 1...Be4
        • 2.Sxf7#
      • 1...f5
        • 2.Rd2#
      • 1...f6
        • 2.Be7#
      • 1...bxc6!
  • Keys
    • 1.Bb5!
      • threat
        • 2.Re8#
      • 1...Be7
        • 2.Bxe7#
      • 1...Be4
        • 2.Sxf7#
      • 1...f5
        • 2.Rd2#
      • 1...f6
        • 2.Be7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(d);N_GUARD::S(C),XP(f)
  • Tries
    • Try
      • B(E);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::B(B),XB(c)
        • B(d);N_GUARD::S(C),XP(f)
        • P(f);S_CUTB(d)::R(A)
        • P(f);S_CUTB(c)::B(B)
      • Refutation
        • P(e);
    • Try
      • B(E);
      • Threat
        • R1(A)
      • Vars
        • B(c);N_GUARD::B(B),XB(c)
        • B(d);N_GUARD::S(C),XP(f)
        • P(f);S_CUTB(d)::R(A)
        • P(f);S_CUTB(c)::B(B)
      • Refutation
        • P(e);XB(E)
  • Actual
    • B(E);
    • Threat
      • R1(A)
    • Vars
      • B(c);N_GUARD::B(B),XB(c)
      • B(d);N_GUARD::S(C),XP(f)
      • P(f);S_CUTB(d)::R(A)
      • P(f);S_CUTB(c)::B(B)
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