MESON Chess Problem Database

Problem Display
PID: 31060 (8/bpN5/2k5/p1rNR3/5P2/B1R5/6B1/3Q3K w - - 0 1)

Dubbe, Friedrich

Sammlung Leichterer Schachaufgaben 3 (Dufresne), 1887

8/bpN5/2k5/p1rNR3/5P2/B1R5/6B1/3Q3K

#2

9 + 5

1322 Rostocker Zeitung 1920
3429 Friedrich Dubbe ein Deutscher Problemmeister 1938

SOLUTION

  • SOUND
  • Tries
    • 1.Rxc5+?
      • 1...Kd6
        • 2.Sc3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Sb6#
        • 2.Sf6#
        • 2.Se7#
      • 1...Kd7
        • 2.Sb6#
        • 2.Se7#
      • 1...Bxc5!
    • 1.Qa4+?
      • 1...Kd6
        • 2.Se8#
        • 2.Re6#
      • 1...b5!
  • Keys
    • 1.Sa8!
      • threat
        • 2.Sdc7#
      • 1...Kb5
        • 2.Sdc7#
      • 1...Kd6
        • 2.Se3#
        • 2.Sdb6#
        • 2.Sf6#
        • 2.Sdc7#
        • 2.Se7#
      • 1...Kd7
        • 2.Sdb6#
      • 1...Rxc3
        • 2.Sxc3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK,XR(b)
      • Refutation
        • B(d);XR(E)
    • Try
      • Q(A);CHECK
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • S(I);
    • Threat
      • B(C)+S(G)
    • Vars
      • K(c);N_SPINR(b),S_FLIGHT::S(G)
      • K(c);N_SPINR(b),S_FLIGHT::QAR(A)+S(G),DCHECK
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