MESON Chess Problem Database

Problem Display
PID: 207467 (R7/B7/2k2K2/1N5B/8/8/8/R7 w - - 0 1)

Hoffmann, Klaus Peter

Badische Neueste Nachrichten, 1995

R7/B7/2k2K2/1N5B/8/8/8/R7

#2

6 + 1

5454 Near Snap 2020
15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kb7
      • 2.Bf3#
    • 1...Kd7
      • 2.Be8#
  • Tries
    • 1.Ke6?
      • 1...Kb7
        • 2.Bf3#
      • 1...Kxb5!
    • 1.Bf3+?
      • 1...Kd7
        • 2.Rd1#
      • 1...Kxb5!
    • 1.Bf7?
      • 1...Kb7
        • 2.Bd5#
      • 1...Kd7
        • 2.Be8#
      • 1...Kxb5!
    • 1.Be8+?
      • 1...Kb7
        • 2.Rb8#
      • 1...Kd5!
    • 1.Ra5?
      • 1...Kb7
        • 2.Bf3#
      • 1...Kd7
        • 2.Be8#
      • 1...Kd5!
    • 1.Rb8?
      • 1...Kd7
        • 2.Be8#
      • 1...Kd5!
    • 1.Rc8+?
      • 1...Kd5
        • 2.Bf3#
      • 1...Kb7
        • 2.Sd6#
      • 1...Kd7
        • 2.Bg4#
      • 1...Kxb5!
    • 1.Rd8?
      • 1...Kb7
        • 2.Bf3#
      • 1...Kxb5!
  • Keys
    • 1.Ra4!
      • 1...Kxb5
        • 2.Be8#
      • 1...Kd5
        • 2.Bf3#
      • 1...Kb7
        • 2.Bf3#
      • 1...Kd7
        • 2.Be8#

Anticipated by 207201(1868), 214564(1880), 28686(1904), 198768(1921)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(C)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);CHECK
      • Vars
        • K(a);S_FLIGHT::B(C)
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • R(A);
    • Vars
      • K(a);S_FLIGHT,XS(B)::B(C)
      • K(a);S_FLIGHT::B(C)
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