MESON Chess Problem Database

Problem Display
PID: 148243 (4k2r/np3p2/2PK1P2/Q7/8/8/8/8 w - - 0 1)

Zukertort, Johannes H

Neue Berliner Schachzeitung, 1869

4k2r/np3p2/2PK1P2/Q7/8/8/8/8

#2

4 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qd8#
  • Keys
    • 1.Qxa7!
      • threat
        • 2.Qb8#
        • 2.Qa8#
      • 1...Kd8
        • 2.Qb8#
        • 2.Qa8#
      • 1...Kf8
        • 2.Qb8#
        • 2.Qa8#

This is after

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(d);P-FLIGHT::QAR2(A)
  • Actual
    • Q(A);XS(a)
    • Threat
      • DUALS(2)
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