MESON Chess Problem Database

Problem Display
PID: 89912 (3Bk3/4P2K/2N5/1R6/B7/8/8/8 w - - 0 1)

Lipton, Michael

Die Schwalbe, 1997

3Bk3/4P2K/2N5/1R6/B7/8/8/8

#2

6 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sd4?
      • threat
        • 2.Rf5#
      • 1...Kf7
        • 2.Rf5#
      • 1...Kd7!
    • 1.Sa7?
      • threat
        • 2.Rf5#
      • 1...Kd7
        • 2.Rb6#
      • 1...Kf7!
    • 1.Re5?
      • 1...Kf7
        • 2.e8Q#
      • 1...Kd7!
  • Keys
    • 1.Rb6!
      • threat
        • 2.Se5#
      • 1...Kd7
        • 2.Sa7#
      • 1...Kf7
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • B(A)+R(B)
      • Vars
        • K(a);S_FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • B(A)+R(B)
      • Vars
        • K(a);S_FLIGHT::B(A)+R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);OGATE,S_FLIGHT::P=Q
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Threat
      • B(A)+S(C)
    • Vars
      • K(a);S_FLIGHT::B(A)+S(C)
      • K(a);S_FLIGHT::S(C)
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