MESON Chess Problem Database

Problem Display
PID: 239465 (1nbR4/R1PPk3/3q3B/2Pp2N1/6rN/6pB/6K1/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Nepszava, 1940

1nbR4/R1PPk3/3q3B/2Pp2N1/6rN/6pB/6K1/8

#2

10 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.dxc8S#
  • Keys
    • 1.Rf8!
      • threat
        • 2.Rf7#
      • 1...Kxd7
        • 2.cxb8S#
      • 1...Qxc5
        • 2.d8Q#
      • 1...Qxc7
        • 2.d8Q#
      • 1...Qxd7
        • 2.Sg6#
      • 1...Rxg5
        • 2.dxc8S#
      • 1...Bxd7
        • 2.c8S#
      • 1...Sxd7
        • 2.Sf5#
      • 1...Qf4
        • 2.d8Q#
      • 1...Qe6
        • 2.d8Q#
      • 1...Qf6
        • 2.d8Q#
      • 1...Qg6
        • 2.d8Q#
      • 1...Rf4
        • 2.dxc8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • Q(d);SBLOCK::PXB(g)=S
  • Actual
    • R(J);
    • Threat
      • R1(J)
    • Vars
      • K(e);P-FLIGHT,P_SPINR(b),XP(I)::PXS(f)=S
      • Q(d);N_GUARD,XP(D)::P=Q
      • Q(d);N_GUARD,XP(H)::P=Q
      • Q(d);N_GUARD,SBLOCK,XP(I)::S(C)
      • R(b);XS(E)::PXB(g)=S
      • B(g);OGATE,XP(I)::P=S
      • S(f);SBLOCK,XP(I)::S(C)
      • Q(d);N_GUARD::P=Q
      • R(b);::PXB(g)=S
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