MESON Chess Problem Database

Problem Display
PID: 129759 (3b1R2/3q3b/BpP1NP2/5k1P/5B2/5Q2/1KP1P3/1n4r1 w - - 0 1)

Erlin, Konrad (AKA Erlinger, Konrad)

La Strategie, 1911

3b1R2/3q3b/BpP1NP2/5k1P/5B2/5Q2/1KP1P3/1n4r1

#2

11 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc6
      • 2.Sd4#
    • 1...Qc8
      • 2.Sd4#
    • 1...Qe8
      • 2.Sd4#
    • 1...Qd4+
      • 2.Sxd4#
    • 1...Qa7
      • 2.Sd4#
    • 1...Qb7
      • 2.Sd4#
    • 1...Qc7
      • 2.Sd4#
    • 1...Qe7
      • 2.Sd4#
    • 1...Qg7
      • 2.Sd4#
  • Tries
    • 1.cxd7?
      • threat
        • 2.Sd4#
      • 1...Rd1
        • 2.Sg7#
      • 1...Kxe6!
  • Keys
    • 1.Bc8!
      • threat
        • 2.Sd4#
      • 1...Qd4+
        • 2.Sxd4#
      • 1...Kxe6
        • 2.Bxd7#
      • 1...Qxe6
        • 2.e4#
      • 1...Qf7
        • 2.Bh2#
        • 2.Bg3#
        • 2.Bd6#
        • 2.Bc7#
        • 2.Bb8#
      • 1...Rd1
        • 2.Sg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(e);N_GUARD,XP(H)::S(I)
    • Q(e);N_GUARD::S(I)
    • Q(e);CHECK,N_GUARD::S(I),XQ(e)
    • Q(e);N_GUARD,P_PINP(J)::S(I)
  • Tries
    • Try
      • P(H);XQ(e)
      • Threat
        • S(I)
      • Vars
        • R(b);N_GUARD::S(I)
      • Refutation
        • K(c);S_FLIGHT,XS(I)
  • Actual
    • B(G);
    • Threat
      • S(I)
    • Vars
      • Q(e);CHECK::B(G)+S(I),DCHECK,XQ(e)
      • K(c);OGATEB,P_SPINQ(e),S_FLIGHT,XS(I)::B(G),XQ(e)
      • Q(e);P_SPINQ(e),XS(I)::P(C)
      • R(b);N_GUARD::S(I)
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