MESON Chess Problem Database

Problem Display
PID: 248108 (K1k5/2BR4/2P3r1/3P4/2N5/8/5b2/8 w - - 0 1)

Blikeng, Bjarne

Mitt.-Blatt des Dansk Skakproblem Klub, 1947

K1k5/2BR4/2P3r1/3P4/2N5/8/5b2/8

#2

6 + 3

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg1
      • 2.Sd6#
    • 1...Rg2
      • 2.Sd6#
    • 1...Rg3
      • 2.Sd6#
    • 1...Rg4
      • 2.Sd6#
    • 1...Rg5
      • 2.Sd6#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Rg7
      • 2.Sd6#
    • 1...Rg8
      • 2.Sd6#
    • 1...Be1
      • 2.Sb6#
    • 1...Bg3
      • 2.Sb6#
    • 1...Bh4
      • 2.Sb6#
    • 1...Bb6
      • 2.Sxb6#
  • Tries
    • 1.Bb6?
      • threat
        • 2.Rd8#
      • 1...Bxb6
        • 2.Sxb6#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Rg8
        • 2.Sd6#
      • 1...Bh4!
    • 1.d6?
      • threat
        • 2.Rd8#
      • 1...Rxd6
        • 2.Sxd6#
      • 1...Bh4
        • 2.Sb6#
      • 1...Rg8!
  • Keys
    • 1.Ba5!
      • threat
        • 2.Rd8#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Rg8
        • 2.Sd6#
      • 1...Bh4
        • 2.Sb6#
      • 1...Bb6
        • 2.Sxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(b);N_GUARD::S(A)
    • R(b);N_GUARD::S(A),XR(b)
    • B(a);N_GUARD::S(A)
    • B(a);N_GUARD::S(A),XB(a)
  • Tries
    • Try
      • B(D);
      • Threat
        • R1(E)
      • Vars
        • B(a);XB(D)::S(A),XB(a)
        • R(b);N_GUARD::S(A),XR(b)
        • R(b);N_GUARD::S(A)
      • Refutation
        • B(a);
    • Try
      • P(B);
      • Threat
        • R1(E)
      • Vars
        • R(b);XP(B)::S(A),XR(b)
        • B(a);N_GUARD::S(A)
      • Refutation
        • R(b);
  • Actual
    • B(D);
    • Threat
      • R1(E)
    • Vars
      • R(b);N_GUARD::S(A),XR(b)
      • R(b);N_GUARD::S(A)
      • B(a);N_GUARD::S(A)
      • B(a);N_GUARD::S(A),XB(a)
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