MESON Chess Problem Database

Problem Display
PID: 259430 (1k6/RPR5/8/8/8/1B6/8/1QK5 w - - 0 1)

Cheylan, Yves

The Problemist, 1978

1k6/RPR5/8/8/8/1B6/8/1QK5

#2

6 + 1

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Ba4?
      • 1...Kxc7
        • 2.b8Q#
      • 1...Kxa7!
    • 1.Bc4?
      • 1...Kxa7
        • 2.b8Q#
        • 2.b8R#
      • 1...Kxc7!
  • Keys
    • 1.Bd5!
      • 1...Kxa7
        • 2.b8S#
      • 1...Kxc7
        • 2.b8Q#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Vars
        • K(a);OGATE,S_FLIGHT,XR(F)::P=Q
      • Refutation
        • K(a);S_FLIGHT,XR(D)
    • Try
      • B(C);
      • Vars
        • K(a);OGATE,S_FLIGHT,XR(D)::P=Q
      • Refutation
        • K(a);S_FLIGHT,XR(F)
  • Actual
    • B(C);
    • Vars
      • K(a);OGATE,S_FLIGHT,XR(D)::P=S
      • K(a);OGATE,S_FLIGHT,XR(F)::P=Q
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