MESON Chess Problem Database

Problem Display
PID: 76886 (7k/7b/5Kp1/8/8/8/8/5Q2 w - - 0 1)

Davey, David Murray

The Tablet, 1947

(First published on Sat Sep 27 1947)

7k/7b/5Kp1/8/8/8/8/5Q2

#2

2 + 3

3713 Snap 2008
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qh3?
      • 1...Kg8
        • 2.Qc8#
      • 1...g5!
    • 1.Qh1?
      • 1...Kg8
        • 2.Qa8#
      • 1...g5!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Kf7#
      • 1...Kg8
        • 2.Qa8#
      • 1...Bg8
        • 2.Kxg6#

Anticipated by 38393(1877), 109820(1906)

This anticipates 108705(1980), 77497(1992), 8010(1995)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);P_PINB(b)
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT::QAR(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);P_PINB(b)
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT::QAR(A)
      • Refutation
        • P(a);
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+K(B)
    • Vars
      • K(c);P-FLIGHT::QAR(A)
      • B(b);SBLOCK::QAB(A)+K(B),XP(a)
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