MESON Chess Problem Database

Problem Display
PID: 263230 (4K3/8/8/1N1RBk2/5P2/6R1/8/8 w - - 0 1)

Lipton, Michael

Postsjakk, 1965

4K3/8/8/1N1RBk2/5P2/6R1/8/8

#2

6 + 1

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Rg5+?
      • 1...Ke6
        • 2.Sc7#
        • 2.Rd6#
      • 1...Ke4!
    • 1.Rd1?
      • 1...Ke4
        • 2.Sd6#
      • 1...Ke6!
    • 1.Rd2?
      • 1...Ke4
        • 2.Sd6#
      • 1...Ke6!
    • 1.Rdd3?
      • 1...Ke4
        • 2.Sd6#
      • 1...Ke6!
    • 1.Rd7?
      • 1...Ke6
        • 2.Sd4#
      • 1...Ke4!
    • 1.Rd8?
      • 1...Ke6
        • 2.Sd4#
      • 1...Ke4!
  • Keys
    • 1.Rc5!
      • 1...Ke4
        • 2.Sd6#
      • 1...Ke6
        • 2.Sd4#

FEATURES

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