MESON Chess Problem Database

Problem Display
PID: 76836 (8/2p5/8/p1K5/8/Pk1B4/8/2Q5 w - - 0 1)

Davey, David Murray

The Tablet, 1947

(First published on Sat Mar 15 1947)

8/2p5/8/p1K5/8/Pk1B4/8/2Q5

#2

4 + 3

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ka2
      • 2.Bc4#
    • 1...Ka4
      • 2.Bc2#
    • 1...a4
      • 2.Bc4#
  • Tries
    • 1.Kb5?
      • threat
        • 2.Bc4#
      • 1...Ka2
        • 2.Bc4#
      • 1...c6+!
    • 1.Be2?
      • 1...Ka2
        • 2.Bc4#
      • 1...Ka4
        • 2.Bd1#
      • 1...a4
        • 2.Bc4#
      • 1...c6!
    • 1.Be4?
      • 1...Ka2
        • 2.Bd5#
      • 1...Ka4
        • 2.Bc2#
      • 1...a4
        • 2.Bd5#
      • 1...c6!
    • 1.Bb5?
      • 1...Ka2
        • 2.Bc4#
      • 1...a4
        • 2.Bc4#
      • 1...c6!
    • 1.Bf5?
      • 1...Ka2
        • 2.Be6#
      • 1...Ka4
        • 2.Bc2#
      • 1...a4
        • 2.Be6#
      • 1...c6!
    • 1.Bg6?
      • 1...Ka2
        • 2.Bf7#
      • 1...Ka4
        • 2.Bc2#
      • 1...a4
        • 2.Bf7#
      • 1...c6!
    • 1.Bh7?
      • 1...Ka2
        • 2.Bg8#
      • 1...Ka4
        • 2.Bc2#
      • 1...a4
        • 2.Bg8#
      • 1...c6!
    • 1.Qb2+?
      • 1...Ka4
        • 2.Bc2#
        • 2.Bb5#
      • 1...Kxb2!
    • 1.a4?
      • 1...Ka2
        • 2.Bc4#
      • 1...Kxa4
        • 2.Bc2#
      • 1...c6!
  • Keys
    • 1.Kc6!
      • 1...Ka2
        • 2.Bc4#
      • 1...Ka4
        • 2.Bc2#
      • 1...a4
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(C)
    • P(b);SBLOCK::B(C)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • B(C)
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • P(c);CHECK
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::B(C)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::B(C)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::B(C)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::B(C)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::B(C)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK::B(C)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • P(B);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • K(a);S_FLIGHT,XP(B)::B(C)
      • Refutation
        • P(c);
  • Actual
    • K(D);P-FLIGHT
    • Vars
      • K(a);S_FLIGHT::B(C)
      • P(b);SBLOCK::B(C)
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