MESON Chess Problem Database

Problem Display
PID: 262358 (1B6/3k4/K7/3B4/3P3Q/8/8/8 w - - 0 1)

Lippmann, A

Europe Echecs, 1981

1B6/3k4/K7/3B4/3P3Q/8/8/8

#2

5 + 1

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Ka7?
      • 1...Kc8
        • 2.Be6#
      • 1...Ke8!
    • 1.Bh2?
      • 1...Kc8
        • 2.Be6#
      • 1...Ke8!
    • 1.Bg3?
      • 1...Kc8
        • 2.Be6#
      • 1...Ke8!
    • 1.Bf4?
      • 1...Kc8
        • 2.Be6#
      • 1...Ke8!
    • 1.Be5?
      • 1...Kc8
        • 2.Be6#
      • 1...Ke8!
    • 1.Bc7?
      • threat
        • 2.Qd8#
      • 1...Kc8
        • 2.Qd8#
      • 1...Ke8
        • 2.Qd8#
      • 1...Kxc7!
    • 1.Qe1?
      • 1...Kc8
        • 2.Qe8#
      • 1...Kd8!
    • 1.Qf6?
      • 1...Ke8
        • 2.Bc6#
      • 1...Kc8!
    • 1.Qe7+?
      • 1...Kc8
        • 2.Qc7#
        • 2.Qe8#
      • 1...Kxe7!
    • 1.Qe4?
      • 1...Kc8
        • 2.Qe8#
      • 1...Kd8!
  • Keys
    • 1.Bd6!
      • 1...Kxd6
        • 2.Qd8#
      • 1...Kc8
        • 2.Be6#
      • 1...Ke8
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XB(E)
    • Try
      • Q(B);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(E);
    • Vars
      • K(a);N_GUARD,P-FLIGHT,XB(E)::QAR2(B)
      • K(a);N_GUARD,S_FLIGHT::B(C)
      • K(a);N_GUARD,S_FLIGHT::QAR1(B)
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