MESON Chess Problem Database

Problem Display
PID: 76995 (8/8/PB1p4/3kpP2/8/8/2P2K2/1Q6 w - - 0 1)

Davey, David Murray

The Tablet, 1948

(First published on Sat May 22 1948)

8/8/PB1p4/3kpP2/8/8/2P2K2/1Q6

#2

6 + 3

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qb3#
    • 1...e4
      • 2.Qb5#
  • Tries
    • 1.Ke3?
      • threat
        • 2.Qb5#
      • 1...Kc4
        • 2.Qb3#
      • 1...Kc6!
    • 1.Kg3?
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.c4#
      • 1...e4
        • 2.Qb5#
      • 1...Kc6!
    • 1.Ba7?
      • 1...Kc4
        • 2.Qb3#
      • 1...Kc6
        • 2.Qb7#
      • 1...e4
        • 2.Qb5#
      • 1...Ke4!
    • 1.Qb3+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc6!
    • 1.Qb4?
      • 1...e4
        • 2.Qb5#
      • 1...Kc6!
    • 1.c4+?
      • 1...Kc6
        • 2.Qb5#
      • 1...Kxc4!
  • Keys
    • 1.Be3!
      • 1...Kc4
        • 2.Qb3#
      • 1...Ke4
        • 2.c4#
      • 1...Kc6
        • 2.Qb7#
      • 1...e4
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(A)
    • P(b);SBLOCK::QAR2(A)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • QAR2(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);S_FLIGHT::QAB(A)+P(B)
        • P(b);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • P(b);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);SBLOCK::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XP(B)
  • Actual
    • B(F);
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);S_FLIGHT::QAB(A)+P(B)
      • P(b);SBLOCK::QAR2(A)
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