MESON Chess Problem Database

Problem Display
PID: 79833 (8/8/2R5/6p1/4k1B1/2B3K1/8/8 w - - 0 1)

Ahlheim, Karl-Heinz

Die Schwalbe, 1969

8/8/2R5/6p1/4k1B1/2B3K1/8/8

#2

4 + 2

5454 Near Snap 2009
15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Bf3#
  • Tries
    • 1.Be2?
      • 1...Ke3
        • 2.Re6#
      • 1...Kd5
        • 2.Bf3#
      • 1...Kf5
        • 2.Bd3#
      • 1...g4!
  • Keys
    • 1.Kf2!
      • 1...Kd3
        • 2.Bf5#
      • 1...Kf4
        • 2.Rc4#
      • 1...Kd5
        • 2.Bf3#

Anticipated by 4615(1884), 53614(1934), 132050(1949)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(C)
  • Tries
    • Try
      • B(C);
      • Vars
        • K(a);P-FLIGHT::R(D)
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • P(b);
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • K(a);S_FLIGHT::B(C)
      • K(a);P-FLIGHT::R(D)
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