MESON Chess Problem Database

Problem Display
PID: 77081 (3KN3/8/8/2N1k3/8/pR5P/Q1R5/1B6 w - - 0 1)

Davey, David Murray

The Tablet, 1948

(First published on Sat Oct 9 1948)

3KN3/8/8/2N1k3/8/pR5P/Q1R5/1B6

#2

8 + 2

5454 Near Snap 2008
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qa1+?
      • 1...Kf4
        • 2.Qf6#
      • 1...Kf5
        • 2.Qf6#
      • 1...Kd5!
  • Keys
    • 1.Se6!
      • 1...Ke4
        • 2.Rc5#
      • 1...Kd5
        • 2.Re3#
      • 1...Kf5
        • 2.Re2#
      • 1...Kxe6
        • 2.Rb5#

Anticipated by 187975(1910), 79724(1922)

This anticipates 23456(1963), 93816(1968), 7474(1990), 35815(1991-1992), 7367(1999)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR2(B)
        • K(b);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(F);
    • Vars
      • K(b);P-FLIGHT::B(A)+R(C)
      • K(b);P-FLIGHT::QAB(B)+R(D)
      • K(b);P-FLIGHT,XS(F)::QAB(B)+R(D)
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