MESON Chess Problem Database

Problem Display
PID: 184912 (2K5/3Q4/1NPPPR1n/2N1k1Bp/3p2bR/1q1p2P1/B7/8 w - - 0 1)

Hasenzahl, Karl

Bulletin Ouvrier des Echecs, 1951

2K5/3Q4/1NPPPR1n/2N1k1Bp/3p2bR/1q1p2P1/B7/8

#2

12 + 7

15601 Albrecht-Leiss-Degener Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Re4#
    • 1...Be2
      • 2.Re4#
    • 1...Bh3
      • 2.Re4#
    • 1...Bxe6
      • 2.Re4#
  • Keys
    • 1.Qe7!
      • threat
        • 2.Bf4#
      • 1...Qxe6+
        • 2.Sbd7#
      • 1...Bxe6+
        • 2.Scd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(d);OGATE::R1(C)
    • B(d);OGATE,P_PINQ(K),XP(I)::R1(C)
  • Actual
    • Q(K);P_SPINP(I)
    • Threat
      • B(E)
    • Vars
      • Q(a);CHECK,P_SPINQ(a),XP(I)::S(F)
      • B(d);CHECK,P_SPINB(d),XP(I)::S(D)
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