MESON Chess Problem Database

Problem Display
PID: 255908 (K7/3kB3/7N/3N4/P4P2/3B4/R7/8 w - - 0 1)

Stohr, Paul

Deutsche Schachzeitung, 1982

K7/3kB3/7N/3N4/P4P2/3B4/R7/8

#2

8 + 1

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc8
      • 2.Bf5#
    • 1...Ke8
      • 2.Bb5#
  • Tries
    • 1.Kb7?
      • 1...Ke8
        • 2.Bb5#
      • 1...Ke6!
    • 1.Bb5+?
      • 1...Kc8
        • 2.Rc2#
      • 1...Ke6!
    • 1.Rc2?
      • 1...Ke8
        • 2.Bb5#
      • 1...Ke6!
    • 1.Re2?
      • 1...Kc8
        • 2.Bf5#
      • 1...Ke8
        • 2.Sf6#
        • 2.Bb5#
      • 1...Kc6!
  • Keys
    • 1.Rd2!
      • 1...Kc6
        • 2.Bb5#
      • 1...Ke6
        • 2.Bf5#
      • 1...Kc8
        • 2.Bf5#
      • 1...Ke8
        • 2.Bb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::B(B)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::B(B)
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