MESON Chess Problem Database

Problem Display
PID: 47856 (8/8/4Q3/8/3k4/1R6/8/1KN5 w - - 0 1)

Kozhakina, Alena Vladimirova

Sp. Comm., Pilchenko-50 JT (Uralski Problemist), 2002

8/8/4Q3/8/3k4/1R6/8/1KN5

#2

4 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Rb6?
      • 1...Kc5
        • 2.Sb3#
      • 1...Kc3!
    • 1.Rb7?
      • 1...Kc5
        • 2.Sb3#
      • 1...Kc3!
    • 1.Rb8?
      • 1...Kc5
        • 2.Sb3#
      • 1...Kc3!
  • Keys
    • 1.Rb4+!
      • 1...Kc3
        • 2.Qe1#
      • 1...Kc5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(C);CHECK
    • Vars
      • K(a);S_FLIGHT::QAB(D)
      • K(a);S_FLIGHT::S(B)
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