MESON Chess Problem Database

Problem Display
PID: 81273 (8/3pp3/1K2k3/1B6/5QP1/8/8/8 w - - 0 1)

Allison, Christopher John

The Field, 1951

(First published on Sat Apr 14 1951)

8/3pp3/1K2k3/1B6/5QP1/8/8/8

#2

4 + 3

15148 Sadier Collection 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Bc4#
    • 1...d6
      • 2.Qf5#
  • Tries
    • 1.Bf1?
      • 1...Kd5
        • 2.Bc4#
      • 1...d6
        • 2.Qf5#
      • 1...d5!
    • 1.Be2?
      • 1...Kd5
        • 2.Bc4#
      • 1...d6
        • 2.Qf5#
      • 1...d5!
    • 1.Bd3?
      • 1...Kd5
        • 2.Bc4#
      • 1...d6
        • 2.Qf5#
      • 1...d5!
    • 1.Ba4?
      • 1...Kd5
        • 2.Bb3#
      • 1...d6
        • 2.Qf5#
      • 1...d5!
  • Keys
    • 1.Ba6!
      • 1...Kd5
        • 2.Bc4#
      • 1...d6
        • 2.Qf5#
      • 1...d5
        • 2.Bc8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(C)
    • P(b);SBLOCK::QAB1(A)
  • Tries
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • P(b);
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • P(b);
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • P(b);
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • P(b);
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::B(C)
      • P(b);SBLOCK::QAB1(A)
      • P(b);OGATEB,SBLOCK::B(C)
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