MESON Chess Problem Database

Problem Display
PID: 284883 (R3B2k/3p2NP/7K/2p2P1N/6p1/4p3/7n/B6q w - - 0 1)

Erdenbrecher, Hans Michael

Die Schwalbe, 1935

R3B2k/3p2NP/7K/2p2P1N/6p1/4p3/7n/B6q

#2

8 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.Se6#
    • 1...Qc6+
      • 2.Se6#
    • 1...Qc1
      • 2.Bg6#
      • 2.Bxd7#
      • 2.Bf7#
    • 1...Qd1
      • 2.Bg6#
      • 2.Bxd7#
      • 2.Bf7#
    • 1...Qe1
      • 2.Bg6#
      • 2.Bxd7#
      • 2.Bf7#
    • 1...Qf1
      • 2.Bg6#
      • 2.Bxd7#
      • 2.Bf7#
    • 1...Qg1
      • 2.Bg6#
      • 2.Bxd7#
      • 2.Bf7#
    • 1...Sf1
      • 2.Se6#
    • 1...Sf3
      • 2.Bg6#
      • 2.Bxd7#
      • 2.Bf7#
    • 1...d5
      • 2.Ba4#
      • 2.Bb5#
      • 2.Bc6#
      • 2.Bg6#
      • 2.Bd7#
      • 2.Bf7#
    • 1...d6
      • 2.Bc6#
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sg6#
      • 1...Qc6+
        • 2.Sge6#
      • 1...Sf1+
        • 2.Sgh5#
      • 1...Sf3+
        • 2.Bh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(a);N_GUARD::B(A)+S(E)
    • Q(a);CHECK,N_GUARD::B(A)+S(E)
    • S(b);P_PINS(C),S_CUTQ(a)::B(A)+S(E)
    • P(f);OGATE::R(G)+B(H)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • Q(a);CHECK,N_GUARD::B(A)+S(E)
      • S(b);CHECK,S_CUTQ(a)::B(A)+S(E)
      • S(b);CHECK,S_CUTQ(a)::R(G)+B(H)
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