MESON Chess Problem Database

Problem Display
PID: 65771 (2K1k3/2n1bp1N/8/7B/8/8/8/4R3 w - - 0 1)

Leverett, Bruce

Chess Life, 1968

2K1k3/2n1bp1N/8/7B/8/8/8/4R3

#2

4 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Bd1?
      • 1...f5
        • 2.Bh5#
      • 1...f6
        • 2.Bh5#
      • 1...Sd5
        • 2.Ba4#
      • 1...Sa6
        • 2.Ba4#
      • 1...Se6
        • 2.Ba4#
      • 1...Sa8
        • 2.Ba4#
      • 1...Sb5!
    • 1.Bf3?
      • threat
        • 2.Bc6#
      • 1...f5
        • 2.Bh5#
      • 1...f6
        • 2.Bh5#
      • 1...Sd5!
    • 1.Bg4?
      • threat
        • 2.Bd7#
      • 1...f5
        • 2.Bh5#
      • 1...f6
        • 2.Bh5#
      • 1...Se6!
  • Keys
    • 1.Be2!
      • 1...Ba3
        • 2.Bb5#
      • 1...Bb4
        • 2.Bb5#
      • 1...Bh4
        • 2.Bb5#
      • 1...Bc5
        • 2.Bb5#
      • 1...Bg5
        • 2.Bb5#
      • 1...Bd6
        • 2.Bb5#
      • 1...Bf6
        • 2.Bb5#
      • 1...Bd8
        • 2.Bb5#
      • 1...Bf8
        • 2.Bb5#
      • 1...f5
        • 2.Bh5#
      • 1...f6
        • 2.Bh5#
      • 1...Sb5
        • 2.Bxb5#
      • 1...Sd5
        • 2.Bb5#
      • 1...Sa6
        • 2.Bb5#
      • 1...Se6
        • 2.Bb5#
      • 1...Sa8
        • 2.Bb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);N_PINP(c)
      • Vars
        • P(c);OGATEB::B(B)
        • S(a);N_GUARD::B(B)
        • S(a);N_GUARD,N_SPINB(b)::B(B)
      • Refutation
        • S(a);
    • Try
      • B(B);N_PINP(c)
      • Threat
        • B(B)
      • Vars
        • P(c);OGATEB::B(B)
      • Refutation
        • S(a);
    • Try
      • B(B);N_PINP(c)
      • Threat
        • B(B)
      • Vars
        • P(c);OGATEB::B(B)
      • Refutation
        • S(a);N_SPINB(b)
  • Actual
    • B(B);N_PINB(b),N_PINP(c)
    • Vars
      • B(b);::R(A)+B(B),DCHECK
      • P(c);OGATEB::B(B)
      • S(a);N_GUARD::B(B),XS(a)
      • S(a);N_GUARD::B(B)
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