MESON Chess Problem Database

Problem Display
PID: 130641 (8/8/8/5K2/2P5/4k3/1PP2R2/6B1 w - - 0 1)

Schiffert, Gyorgy

Kharkov-325 JT, 1983

8/8/8/5K2/2P5/4k3/1PP2R2/6B1

#2

6 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rf4#
  • Tries
    • 1.Kg4?
      • 1...Ke4
        • 2.Re2#
      • 1...Kd4!
    • 1.Ke6?
      • 1...Kd4
        • 2.Rf4#
      • 1...Ke4!
    • 1.Kf6?
      • 1...Kd4
        • 2.Rf4#
      • 1...Ke4!
  • Keys
    • 1.b3!
      • 1...Kd4
        • 2.Rf3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(A)+R(D),DCHECK
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(F);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(A)+R(D),DCHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(A)+R(D),DCHECK
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(B);
    • Vars
      • K(a);S_FLIGHT::B(A)+R(D)
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