MESON Chess Problem Database

Problem Display
PID: 76987 (8/1p2K3/prP5/pk6/4Q3/P7/8/8 w - - 0 1)

Davey, David Murray

The Tablet, 1948

(First published on Sat Apr 17 1948)

8/1p2K3/prP5/pk6/4Q3/P7/8/8

#2

4 + 5

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Sets
    • 1...a4
      • 2.Qd5#
  • Tries
    • 1.Kd6?
      • threat
        • 2.a4#
      • 1...a4
        • 2.Qd5#
        • 2.Qb4#
      • 1...Rxc6+!
    • 1.Qb4+?
      • 1...Kxc6
        • 2.Qc4#
      • 1...axb4!
  • Keys
    • 1.Qd4!
      • 1...Kxc6
        • 2.Qc4#
      • 1...Rxc6
        • 2.a4#
      • 1...bxc6
        • 2.a4#
      • 1...a4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(a);SBLOCK::QAR2(B)
  • Tries
    • Try
      • K(D);P_SPINP(C),S_FLIGHT
      • Threat
        • P(A)
      • Refutation
        • R(d);CHECK,XP(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(C)::QAR2(B)
      • Refutation
        • P(a);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT,XP(C)::QAR2(B)
      • R(d);SBLOCK,XP(C)::P(A)
      • P(e);SBLOCK,XP(C)::P(A)
      • P(a);SBLOCK::QAR2(B)
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