MESON Chess Problem Database

Problem Display
PID: 216183 (8/1p6/bp6/1R6/k5BR/8/8/K3B3 w - - 0 1)

L'Hermet, Johann Georg Rudolf

Oesterreichische Lesehalle, 1881

8/1p6/bp6/1R6/k5BR/8/8/K3B3

#2

5 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Ka2?
      • threat
        • 2.Be2#
        • 2.Bd7#
      • 1...Bxb5
        • 2.Bd1#
        • 2.Bd7#
      • 1...Kxb5!
    • 1.Kb2?
      • threat
        • 2.Be2#
        • 2.Bd7#
      • 1...Bxb5
        • 2.Bd1#
        • 2.Bd7#
      • 1...Kxb5!
    • 1.Bd1+?
      • 1...Ka3
        • 2.Bb4#
        • 2.Rh3#
        • 2.Ra4#
        • 2.Rb3#
      • 1...Kxb5!
    • 1.Be6+?
      • 1...Ka3
        • 2.Rb3#
      • 1...Kxb5!
    • 1.Rh3?
      • 1...Bxb5
        • 2.Bd1#
      • 1...Kxb5!
    • 1.Ra5+?
      • 1...Kb3
        • 2.Bd1#
      • 1...bxa5!
  • Keys
    • 1.Bb4!
      • 1...Kb3
        • 2.Bd1#
      • 1...Kxb5
        • 2.Bd7#
      • 1...Bxb5
        • 2.Bd1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • K(A);S_FLIGHT
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • B(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • B(C);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(E)
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • R(D);
      • Vars
        • B(b);SBLOCK,XR(E)::B(C)
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • R(E);CHECK
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • P(c);XR(E)
  • Actual
    • B(B);
    • Vars
      • K(a);S_FLIGHT::B(C)
      • K(a);OGATEB,S_FLIGHT,XR(E)::B(C)
      • B(b);SBLOCK,XR(E)::B(C)
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