MESON Chess Problem Database

Problem Display
PID: 262084 (5N1K/8/4B3/4k2N/8/2nQ4/8/rr6 w - - 0 1)

Lipton, Michael

The Problemist, 1953

5N1K/8/4B3/4k2N/8/2nQ4/8/rr6

#2

5 + 4

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qd5#
    • 1...Sa2
      • 2.Qd5#
    • 1...Se2
      • 2.Qd5#
    • 1...Sa4
      • 2.Qd5#
    • 1...Se4
      • 2.Qd5#
    • 1...Sb5
      • 2.Qd5#
    • 1...Sd5
      • 2.Qxd5#
  • Keys
    • 1.Bg8!
      • threat
        • 2.Sg6#
        • 2.Sd7#
      • 1...Se4
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Ra6
        • 2.Sd7#
      • 1...Ra7
        • 2.Sg6#
      • 1...Rg1
        • 2.Sd7#
      • 1...Rb6
        • 2.Sd7#
      • 1...Rb7
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::QAR1(A)
    • S(c);N_GUARD::QAR1(A),XS(c)
  • Actual
    • B(C);
    • Threat
      • DUALS(2)
    • Vars
      • S(c);N_GUARD::QAR1(A)
      • S(c);N_GUARD::QAR1(A),XS(c)
      • R(a);::S(D)
      • R(b);::S(D)
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