MESON Chess Problem Database

Problem Display
PID: 160953 (1B4N1/5R2/Kn2k1P1/2pn2p1/2Q2pq1/2N5/B3b2r/4R3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schach-Echo, 1976

1B4N1/5R2/Kn2k1P1/2pn2p1/2Q2pq1/2N5/B3b2r/4R3

#2

9 + 9

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Re7#
  • Tries
    • 1.Qd3?
      • threat
        • 2.Re7#
      • 1...Sc4
        • 2.Qxd5#
      • 1...Sc8
        • 2.Bxd5#
      • 1...c4
        • 2.Qe4#
      • 1...Rh7!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Rf6#
      • 1...Qf5
        • 2.Re7#
      • 1...Sc4
        • 2.Qd7#
      • 1...Sd7
        • 2.Bxd5#
      • 1...c4
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • Q(d);SBLOCK::R1(G)
  • Tries
    • Try
      • Q(D);
      • Threat
        • R1(G)
      • Vars
        • S(h);N_PINQ(D),N_SPINS(f)::QAB1(D),XS(f)
        • S(h);N_GUARD::B(B),XS(f)
        • P(e);N_PINQ(D),N_SPINS(f)::QAR2(D)
      • Refutation
        • R(b);
  • Actual
    • Q(D);
    • Threat
      • R1(G)
    • Vars
      • Q(d);SBLOCK::R1(G)
      • S(h);N_PINQ(D),N_SPINS(f)::QAB1(D)
      • S(h);N_GUARD::B(B),XS(f)
      • P(e);N_PINQ(D),N_SPINS(f)::QAR2(D)
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