MESON Chess Problem Database

Problem Display
PID: 262437 (4B3/4K3/8/B4k2/7R/3PP3/8/8 w - - 0 1)

Speckmann, Werner

Europe Echecs, 1968

4B3/4K3/8/B4k2/7R/3PP3/8/8

#2

6 + 1

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Rh5#
  • Tries
    • 1.Be1?
      • 1...Ke5
        • 2.Rh5#
      • 1...Kg5!
    • 1.Bd2?
      • 1...Ke5
        • 2.Rh5#
      • 1...Kg5!
    • 1.Bb4?
      • 1...Ke5
        • 2.Rh5#
      • 1...Kg5!
    • 1.Bb6?
      • 1...Ke5
        • 2.Rh5#
      • 1...Kg5!
    • 1.Bf7?
      • 1...Ke5
        • 2.Rh5#
      • 1...Kg5!
    • 1.Rb4?
      • 1...Ke5
        • 2.Rb5#
      • 1...Kg5!
    • 1.Rc4?
      • 1...Ke5
        • 2.Rc5#
      • 1...Kg5!
    • 1.Rg4?
      • 1...Ke5
        • 2.Rg5#
      • 1...Kxg4!
    • 1.e4+?
      • 1...Ke5
        • 2.Bc3#
      • 1...Kg5!
  • Keys
    • 1.Bd8!
      • 1...Ke5
        • 2.Rh5#
      • 1...Kg5
        • 2.Ke6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,P-FLIGHT::R(C)
  • Tries
    • Try
      • B(D);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(F);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • P(B);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(a);N_GUARD,P-FLIGHT::R(C)
      • K(a);P-FLIGHT::B(D)+K(E)
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