MESON Chess Problem Database

Problem Display
PID: 163163 (1B6/5B2/K4p2/4Pkp1/3R2p1/2bP2P1/2Q1rr2/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Landeszeitung fur die Luneburger Heide, 1995

(First published on Sat Apr 15 1995)

1B6/5B2/K4p2/4Pkp1/3R2p1/2bP2P1/2Q1rr2/8

#2

8 + 7

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Qxf2#
    • 1...Re4
      • 2.dxe4#
    • 1...Rxe5
      • 2.Qxf2#
    • 1...Ba1
      • 2.Qc8#
    • 1...Be1
      • 2.Qc8#
    • 1...Bb2
      • 2.Qc8#
    • 1...Bd2
      • 2.Qc8#
    • 1...Bb4
      • 2.Qc8#
    • 1...Bxd4
      • 2.Qc8#
    • 1...Ba5
      • 2.Qc8#
  • Tries
    • 1.Qa2?
      • threat
        • 2.Qe6#
      • 1...Rxe5
        • 2.Qxf2#
      • 1...Rxa2+!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Rxf6#
      • 1...Kxe5
        • 2.Rd5#
      • 1...Rxe5
        • 2.Qxf2#
      • 1...Bxe5
        • 2.Qc8#
      • 1...fxe5
        • 2.Bg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 9
  • Sets
    • R(a);OGATE::QAR(A),XR(b)
    • R(a);OGATE::P(B),XR(a)
    • R(a);OGATE,XP(E)::QAR(A),XR(b)
    • B(c);OGATE::QAB(A)
    • B(c);OGATE,XR(D)::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • R(a);OGATE,XP(E)::QAR(A),XR(b)
      • Refutation
        • R(a);CHECK,XQ(A)
  • Actual
    • R(D);
    • Threat
      • R1(D),XP(g)
    • Vars
      • K(e);OGATEB,P-FLIGHT,XP(E)::B(H)+R(D),DCHECK
      • R(a);OGATE,SBLOCK,XP(E)::QAR(A),XR(b)
      • B(c);OGATE,SBLOCK,XP(E)::QAB(A)
      • P(g);SBLOCK,XP(E)::B(G)
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