MESON Chess Problem Database

Problem Display
PID: 210744 (2N5/1kB2B1R/N7/8/4K3/8/8/8 w - - 0 1)

Wolfenter, Friedrich

Deutsche Schachblatter, 1968

2N5/1kB2B1R/N7/8/4K3/8/8/8

#2

6 + 1

15148 Sadier Collection 2020
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ka8
      • 2.Bd5#
  • Tries
    • 1.Ba5?
      • 1...Kc6
        • 2.Be8#
      • 1...Ka8
        • 2.Bd5#
      • 1...Kxc8
        • 2.Be6#
      • 1...Kxa6!
    • 1.Bd8?
      • 1...Kxa6
        • 2.Bc4#
      • 1...Kc6
        • 2.Be8#
      • 1...Ka8
        • 2.Bd5#
      • 1...Kxc8!
    • 1.Rh6?
      • 1...Ka8
        • 2.Bd5#
      • 1...Kxc8!
  • Keys
    • 1.Bb6!
      • 1...Kxa6
        • 2.Bc4#
      • 1...Kc6
        • 2.Be8#
      • 1...Ka8
        • 2.Bd5#
      • 1...Kxc8
        • 2.Be6#

Anticipated by 22407(1965)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(D)
  • Tries
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT::B(D)
        • K(a);S_FLIGHT,XS(F)::B(D)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • B(C);
      • Vars
        • K(a);S_FLIGHT,XS(B)::B(D)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT,XS(F)
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT,XS(F)
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT,XS(B)::B(D)
      • K(a);S_FLIGHT::B(D)
      • K(a);S_FLIGHT,XS(F)::B(D)
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