MESON Chess Problem Database

Problem Display
PID: 81969 (1r6/6bq/7p/2nBN3/8/P1kpRNQ1/2p2nK1/2B5 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Northwest Chess, 1976

1r6/6bq/7p/2nBN3/8/P1kpRNQ1/2p2nK1/2B5

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Bd2#
    • 1...Bxe5
      • 2.Qxe5#
    • 1...Sd1
      • 2.Qe1#
    • 1...Sh1
      • 2.Qe1#
    • 1...Sh3
      • 2.Qe1#
    • 1...Sg4
      • 2.Qe1#
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Bd2#
      • 1...Qxd3
        • 2.Qxg7#
      • 1...Sfxd3
        • 2.Qe1#
      • 1...Scxd3
        • 2.Qc7#
      • 1...Sfe4
        • 2.Sxc5#
      • 1...Sb3
        • 2.Bb2#
      • 1...Sce4
        • 2.Sxf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 6
  • Sets
    • R(i);SBLOCK::B(A)
    • B(g);OGATE,XS(H)::QAB(F),XB(g)
    • S(b);OGATE::QAB(F)
  • Actual
    • S(H);XP(d)
    • Threat
      • B(A)
    • Vars
      • Q(h);N_GUARD,P_SPINQ(h),XS(H)::QAB(F),XB(g)
      • S(b);OGATE,P_SPINS(b),XS(H)::QAB(F)
      • S(e);OGATEB,P_SPINS(e),XS(H)::QAR(F)
      • S(b);N_GUARD,S_CUTQ(h)::R(D)+S(H),XS(e)
      • S(e);S_CUTR(i)::B(A)
      • S(e);N_GUARD,S_CUTQ(h)::R(D)+S(H),XS(b)
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