MESON Chess Problem Database

Problem Display
PID: 79495 (3B4/1N6/KQ2p2r/1p1Pk2r/4B3/5pP1/3Nn3/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Hannoversche Allgemeine Zeitung, 1994

3B4/1N6/KQ2p2r/1p1Pk2r/4B3/5pP1/3Nn3/8

#2

8 + 7

6114 Problemschach-Jahrbuch (1994) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Rf6
      • 2.Bc7#
    • 1...Sd4
      • 2.Qc7#
      • 2.Qd6#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Sxf3#
        • 2.Sd3#
        • 2.Sd7#
      • 1...Sxg3
        • 2.Sd3#
      • 1...Rf5
        • 2.Sd3#
        • 2.Sd7#
      • 1...Rf6
        • 2.Sd3#
        • 2.Sd7#
      • 1...Rh7
        • 2.Sxf3#
        • 2.Sd3#
      • 1...Sc1
        • 2.Sxf3#
        • 2.Sd7#
      • 1...Sg1
        • 2.Sd3#
        • 2.Sd7#
      • 1...Sd4
        • 2.Sd3#
        • 2.Sd7#
        • 2.Qc7#
        • 2.Qb8#
      • 1...Sf4
        • 2.Sxf3#
        • 2.Sd7#
      • 1...f2
        • 2.Sf3#
        • 2.Sd3#
        • 2.Sd7#
      • 1...Kd4!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Sxf3#
      • 1...exd5+
        • 2.Bg6#
      • 1...Rf5
        • 2.Bxf3#
      • 1...Rf6
        • 2.Bc7#
      • 1...Sg1
        • 2.Qc3#
      • 1...Sd4
        • 2.Qf4#
      • 1...f2
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(g);SBLOCK::B(H)
  • Tries
    • Try
      • S(G);
      • Threat
        • DUALS(3)
      • Vars
        • S(a);XP(B)::S(G)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • S(A),XP(b)
    • Vars
      • P(f);CHECK,SBLOCK,XP(D)::QAR(F)+B(C)
      • R(e);SBLOCK::QAR(F)+B(C),XP(b)
      • R(g);SBLOCK::B(H)
      • S(a);N_GUARD::QAB(F)
      • S(a);N_GUARD,SBLOCK::QAB1(F)
      • P(b);::S(A)
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