MESON Chess Problem Database

Problem Display
PID: 100998 (8/5RR1/8/3Bk3/4P3/8/1N3K1N/8 w - - 0 1)

Heller, JG

Good Companions, 1922

8/5RR1/8/3Bk3/4P3/8/1N3K1N/8

#2

7 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3+?
      • 1...Kd6
        • 2.Rf6#
        • 2.Rd7#
        • 2.Rg6#
      • 1...Kd4!
    • 1.Rd7?
      • 1...Kf4
        • 2.Sd3#
      • 1...Kf6
        • 2.Sg4#
      • 1...Kd4!
  • Keys
    • 1.Rc7!
      • 1...Kd4
        • 2.Sf3#
      • 1...Kf4
        • 2.Sd3#
      • 1...Kd6
        • 2.Sc4#
      • 1...Kf6
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::S(A)
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(a);S_FLIGHT::S(C)
      • K(a);S_FLIGHT::S(A)
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