MESON Chess Problem Database

Problem Display
PID: 18962 (3kn1n1/K7/4Q2R/8/8/8/5B2/8 w - - 0 1)

Speckmann, Werner

The Problemist, 1959

3kn1n1/K7/4Q2R/8/8/8/5B2/8

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Kc7
      • 2.Bb6#
    • 1...Sd6
      • 2.Bb6#
    • 1...Sef6
      • 2.Bb6#
    • 1...Sg7
      • 2.Bb6#
  • Tries
    • 1.Qxe8+?
      • 1...Kc7
        • 2.Bg3#
        • 2.Bb6#
        • 2.Rc6#
      • 1...Kxe8!
  • Keys
    • 1.Rh8!
      • 1...Kc7
        • 2.Bb6#
      • 1...Sc7
        • 2.Bh4#
      • 1...Sd6
        • 2.Bb6#
      • 1...Sef6
        • 2.Bb6#
      • 1...Sg7
        • 2.Bb6#
      • 1...Sgf6
        • 2.Bb6#
      • 1...Sh6
        • 2.Bb6#
      • 1...Se7
        • 2.Bb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(A)
    • S(b);N_GUARD::B(A)
  • Tries
    • Try
      • Q(B);CHECK,XS(b)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • R(C);
    • Vars
      • K(a);S_FLIGHT::B(A)
      • S(b);N_GUARD,P_SPINS(c),SBLOCK::B(A)
      • S(b);N_GUARD,P_SPINS(c)::B(A)
      • S(c);P_SPINS(b)::B(A)
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