MESON Chess Problem Database

Problem Display
PID: 251778 (2q5/4Nb2/3R1R2/2nNk1n1/1Q2pp1B/1p3p2/8/b2K4 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Deutsche Schachzeitung, 1988

2q5/4Nb2/3R1R2/2nNk1n1/1Q2pp1B/1p3p2/8/b2K4

#2

7 + 10

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Sc6#
    • 1...Qg4
      • 2.Sc6#
    • 1...Qf5
      • 2.Sc6#
    • 1...Qc6
      • 2.Sxc6#
    • 1...Qb8
      • 2.Sc6#
    • 1...Qd8
      • 2.Sc6#
    • 1...Qf8
      • 2.Sc6#
    • 1...Qg8
      • 2.Sc6#
    • 1...Qh8
      • 2.Sc6#
    • 1...Bc3
      • 2.Qxc3#
    • 1...Bxd5
      • 2.Sg6#
    • 1...Bg6
      • 2.Sxg6#
    • 1...Bg8
      • 2.Sg6#
    • 1...Sce6
      • 2.Rf5#
    • 1...Sd7
      • 2.Rf5#
    • 1...b2
      • 2.Qc3#
    • 1...e3
      • 2.Qxf4#
  • Tries
    • 1.Bxg5?
      • threat
        • 2.Bxf4#
      • 1...Qg4
        • 2.Sc6#
      • 1...Qf5
        • 2.Sc6#
      • 1...Se6
        • 2.Rf5#
      • 1...Sd3!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qd4#
      • 1...Bxc3
        • 2.Qxc3#
      • 1...Sce6
        • 2.Rf5#
      • 1...Sge6
        • 2.Rd5#
      • 1...Bc4
        • 2.Sg6#
      • 1...Bd5
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 14
  • Sets
    • Q(j);N_GUARD::S(G)
    • Q(j);N_GUARD::S(G),XQ(j)
    • B(a);N_GUARD::QAB(B),XB(a)
    • B(i);N_GUARD,XS(D)::S(G)
    • B(i);N_GUARD::S(G),XB(i)
    • B(i);N_GUARD::S(G)
    • S(f);S_CUTQ(j)::R1(F)
    • P(b);S_CUTB(a)::QAB(B)
    • P(d);OGATE::QAB1(B),XP(e)
  • Tries
    • Try
      • B(C);XS(h)
      • Threat
        • B(C),XP(e)
      • Vars
        • Q(j);N_GUARD::S(G)
        • S(f);S_CUTQ(j)::R1(F)
      • Refutation
        • S(f);
  • Actual
    • S(D);
    • Threat
      • QAB1(B)
    • Vars
      • B(a);OGATE,XS(D)::QAB(B),XB(a)
      • S(f);S_CUTQ(j)::R1(F)
      • S(h);S_CUTB(i)::R1(E)
      • B(i);N_GUARD::S(G)
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