MESON Chess Problem Database

Problem Display
PID: 51624 (3BK3/8/Bbk5/P7/1Q6/8/8/8 w - - 0 1)

Barrow, John Hugh

Daily Herald, 1922

3BK3/8/Bbk5/P7/1Q6/8/8/8

#2

5 + 2

5257 Chess Problems by J H Barrow 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Bb7#
    • 1...Bf2
      • 2.Bb7#
    • 1...Be3
      • 2.Bb7#
    • 1...Bd4
      • 2.Bb7#
    • 1...Bxa5
      • 2.Bb7#
    • 1...Ba7
      • 2.Bb7#
    • 1...Bc7
      • 2.Bb7#
  • Tries
    • 1.Be7?
      • threat
        • 2.Qd6#
      • 1...Kc7
        • 2.Qd6#
        • 2.Qxb6#
      • 1...Bc5
        • 2.Qxc5#
        • 2.Qb7#
      • 1...Bc7
        • 2.Bb7#
        • 2.Qc5#
        • 2.Qc4#
        • 2.Qe4#
        • 2.Qb5#
        • 2.Qb7#
      • 1...Kd5!
    • 1.Qe4+?
      • 1...Kc5
        • 2.Be7#
      • 1...Kd6!
  • Keys
    • 1.Bc7!
      • threat
        • 2.Qd6#
      • 1...Kd5
        • 2.Qc4#
      • 1...Kxc7
        • 2.Qxb6#
      • 1...Bxc7
        • 2.Bb7#
      • 1...Bc5
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(a);::B(C)
    • B(a);XP(B)::B(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::B(D)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(D);
    • Threat
      • QAR1(A)
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);P-FLIGHT,XB(D)::QAB1(A),XB(a)
      • B(a);SBLOCK,XB(D)::B(C)
      • B(a);OGATE,SBLOCK::QAB1(A)
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