MESON Chess Problem Database

Problem Display
PID: 282725 (1qN5/1P6/QNkP4/8/2K5/8/8/8 w - - 0 1)

Hoffmann, Martin Wolfgang

Zurcher Woche, 1968

(First published on Fri Feb 9 1968)

1qN5/1P6/QNkP4/8/2K5/8/8/8

#2

6 + 2

15601 Albrecht-Leiss-Degener Collection 2025

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb7
      • 2.Qb5#
      • 2.Qa4#
    • 1...Qa8
      • 2.bxa8Q#
      • 2.bxa8B#
  • Keys
    • 1.Qa8!
      • 1...Qxd6
        • 2.b8Q#
        • 2.b8B#
      • 1...Qxb7
        • 2.Qa4#
      • 1...Qxa8
        • 2.bxa8Q#
        • 2.bxa8B#
      • 1...Qxc8
        • 2.bxc8S#
      • 1...Qa7
        • 2.b8S#
      • 1...Qc7
        • 2.b8S#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(b);OGATE::PXQ(b)=Q
  • Actual
    • Q(B);
    • Vars
      • Q(b);OGATE,XP(D)::P=Q
      • Q(b);P_SPINQ(b),SBLOCK,XP(E)::QAB(B)
      • Q(b);OGATE,XQ(B)::PXQ(b)=Q
      • Q(b);OGATE,XS(F)::PXQ(b)=S
      • Q(b);OGATE::P=S
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