MESON Chess Problem Database

Problem Display
PID: 87545 (8/8/5Q2/3k4/8/1K6/2R5/8 w - - 0 1)

Holladay, Edgar Dinwiddie

The Problemist, 1990

8/8/5Q2/3k4/8/1K6/2R5/8

#2

3 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Ra2?
      • 1...Kc5
        • 2.Ra5#
      • 1...Ke4!
    • 1.Rf2?
      • 1...Kc5
        • 2.Rf5#
      • 1...Ke4!
    • 1.Rg2?
      • 1...Kc5
        • 2.Rg5#
      • 1...Ke4!
    • 1.Rh2?
      • 1...Kc5
        • 2.Rh5#
      • 1...Ke4!
  • Keys
    • 1.Qe7!
      • 1...Kd4
        • 2.Rd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::R(A)
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