MESON Chess Problem Database

Problem Display
PID: 73098 (R7/8/B7/8/8/1kB5/2N5/R3K3 w Q - 0 1)

Hoffmann, Klaus Peter

Neue Osnabrucker Zeitung, 1993

R7/8/B7/8/8/1kB5/2N5/R3K3

#2

6 + 1

6113 Problemschach-Jahrbuch (1993) 1994

SOLUTION

  • SOUND
  • Tries
    • 1.Sa3?
      • 1...Ka4
        • 2.Bc4#
      • 1...Kxc3!
    • 1.Rb1+?
      • 1...Ka2
        • 2.Rb2#
      • 1...Kxc3
        • 2.Rc8#
      • 1...Ka4
        • 2.Bf1#
        • 2.Be2#
        • 2.Bd3#
        • 2.Bc4#
        • 2.Bb5#
        • 2.Bb7#
        • 2.Bc8#
      • 1...Kxc2!
    • 1.Rc1?
      • 1...Ka2
        • 2.Bc4#
      • 1...Ka4
        • 2.Bc4#
      • 1...Kxc3!
  • Keys
    • 1.0-0-0!
      • 1...Ka2
        • 2.Bc4#
      • 1...Kxc3
        • 2.Rd3#
      • 1...Ka4
        • 2.Bc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::R(F)+B(E)
      • Refutation
        • K(a);P-FLIGHT,XB(D)
    • Try
      • R(A);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(A)
        • K(a);P-FLIGHT,XB(D)::R(F)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::R(F)+B(E),DCHECK
        • K(a);S_FLIGHT::R(F)+B(E)
      • Refutation
        • K(a);P-FLIGHT,XB(D)
  • Actual
    • K(B);0-0-0
    • Vars
      • K(a);S_FLIGHT::R(F)+B(E),DCHECK
      • K(a);OGATEB,P-FLIGHT,XB(D)::R1(A)
      • K(a);S_FLIGHT::R(F)+B(E)
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