MESON Chess Problem Database

Problem Display
PID: 63368 (2r1rb2/7b/1NnBRNn1/pp6/1p1k1p2/1Q1P4/5P2/K7 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Comm., Die Schwalbe, 2005

2r1rb2/7b/1NnBRNn1/pp6/1p1k1p2/1Q1P4/5P2/K7

#2

8 + 11

23 Die Schwalbe 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Rd8
      • 2.Re4#
    • 1...Be7
      • 2.Re4#
    • 1...Sce7
      • 2.Re4#
  • Tries
    • 1.Kb2?
      • threat
        • 2.Qd5#
      • 1...Sce7
        • 2.Re4#
      • 1...Sge7!
    • 1.Se4?
      • threat
        • 2.Qd5#
      • 1...Sge7
        • 2.Bc5#
      • 1...Sce7!
  • Keys
    • 1.Sa4!
      • threat
        • 2.Qd5#
      • 1...bxa4
        • 2.Qc4#
      • 1...Sce7
        • 2.Re4#
      • 1...Sge7
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • R(j);N_GUARD::R1(G)
    • B(k);S_CUTR(j)::R1(G)
    • S(f);S_CUTR(j)::R1(G)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAR1(C)
      • Vars
        • S(f);S_CUTR(j)::R1(G)
      • Refutation
        • S(g);
    • Try
      • S(H);
      • Threat
        • QAR1(C)
      • Vars
        • S(g);S_CUTB(k)::B(F)
      • Refutation
        • S(f);
  • Actual
    • S(E);
    • Threat
      • QAR1(C)
    • Vars
      • P(e);N_GUARD,XS(E)::QAR1(C)
      • S(f);S_CUTR(j)::R1(G)
      • S(g);S_CUTB(k)::B(F)
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