MESON Chess Problem Database

Problem Display
PID: 41435 (1b1R4/1pN1Nr2/p3R3/B1pp1p2/3k4/6pr/4B3/K6b w - - 0 1)

Ahues, Herbert Siegfried Oskar

Der Tagesspiegel (Berlin), 1999

1b1R4/1pN1Nr2/p3R3/B1pp1p2/3k4/6pr/4B3/K6b

#2

7 + 11

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Rg7
      • 2.Sxf5#
    • 1...Rh7
      • 2.Sxf5#
    • 1...g2
      • 2.Rxd5#
    • 1...b5
      • 2.Sc6#
    • 1...b6
      • 2.Sc6#
  • Tries
    • 1.Kb2?
      • threat
        • 2.Bc3#
      • 1...c4
        • 2.Bb6#
      • 1...g2
        • 2.Rxd5#
      • 1...Be4!
    • 1.Scxd5?
      • threat
        • 2.Bc3#
      • 1...Bxd5
        • 2.Rxd5#
      • 1...c4
        • 2.Bb6#
      • 1...g2
        • 2.Sc7#
      • 1...Be5!
  • Keys
    • 1.Sexd5!
      • threat
        • 2.Bc3#
      • 1...Bxd5
        • 2.Rxd5#
      • 1...c4
        • 2.Bb6#
      • 1...g2
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(j);N_GUARD::S(F),XP(g)
    • P(b);S_CUTB(a)::R1(G),XP(f)
    • P(i);N_GUARD::S(F)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • B(C)
      • Vars
        • P(e);OGATEB::B(C)
        • P(b);S_CUTB(a)::R1(G),XP(f)
      • Refutation
        • B(a);
    • Try
      • S(E);XP(f)
      • Threat
        • B(C)
      • Vars
        • B(a);OGATE,P_SPINB(a),XS(E)::R1(G),XB(a)
        • P(e);OGATEB::B(C)
        • P(b);S_CUTB(a)::R(G)+S(E)
      • Refutation
        • B(k);
  • Actual
    • S(F);XP(f)
    • Threat
      • B(C)
    • Vars
      • B(a);OGATE,P_SPINB(a),XS(F)::R1(G),XB(a)
      • P(e);OGATEB::B(C)
      • P(b);S_CUTB(a)::R(G)+S(F)
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