MESON Chess Problem Database

Problem Display
PID: 137259 (2NR4/8/8/4p3/n1PBkpK1/R2N4/8/4b3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Freie Presse, 1999

2NR4/8/8/4p3/n1PBkpK1/R2N4/8/4b3

#2

7 + 5

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Sf2#
    • 1...Bf2
      • 2.Sxf2#
    • 1...Bc3
      • 2.Sf2#
    • 1...Bb4
      • 2.Sf2#
    • 1...Ba5
      • 2.Sf2#
    • 1...Sb2
      • 2.Sc5#
    • 1...Sc3
      • 2.Sc5#
    • 1...Sc5
      • 2.Sxc5#
    • 1...Sb6
      • 2.Sc5#
    • 1...exd4
      • 2.Re8#
  • Tries
    • 1.Bg1?
      • threat
        • 2.Sd6#
      • 1...Bf2
        • 2.Sxf2#
      • 1...Bb4
        • 2.Sf2#
      • 1...Sc3
        • 2.Sc5#
      • 1...Bc3!
    • 1.Bc5?
      • threat
        • 2.Sd6#
      • 1...Sxc5
        • 2.Sxc5#
      • 1...Bc3
        • 2.Sf2#
      • 1...Sc3!
    • 1.Bb6?
      • threat
        • 2.Sd6#
      • 1...Sxb6
        • 2.Sc5#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Bc3
        • 2.Sf2#
      • 1...Bb4
        • 2.Sf2#
      • 1...Sc3!
    • 1.Ba7?
      • threat
        • 2.Sd6#
      • 1...Sc5
        • 2.Sxc5#
      • 1...Sb6
        • 2.Sc5#
      • 1...Bc3
        • 2.Sf2#
      • 1...Bb4
        • 2.Sf2#
      • 1...Sc3!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Sd6#
      • 1...exd4
        • 2.Re5#
      • 1...Bc3
        • 2.Sf2#
      • 1...Sc3
        • 2.Sc5#
      • 1...Bb4
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • B(a);N_GUARD::S(B)
    • B(a);N_GUARD::S(B),XB(a)
    • S(b);N_GUARD::S(B)
    • S(b);N_GUARD::S(B),XS(b)
    • P(e);OGATEB,SBLOCK,XB(D)::R(G)
  • Tries
    • Try
      • B(D);
      • Threat
        • S(F)
      • Vars
        • B(a);N_GUARD::S(B),XB(a)
        • B(a);N_GUARD::S(B)
        • S(b);N_GUARD::S(B)
      • Refutation
        • B(a);
    • Try
      • B(D);
      • Threat
        • S(F)
      • Vars
        • S(b);XB(D)::S(B),XS(b)
        • B(a);N_GUARD::S(B)
      • Refutation
        • S(b);
    • Try
      • B(D);
      • Threat
        • S(F)
      • Vars
        • S(b);N_GUARD,XB(D)::S(B)
        • S(b);N_GUARD::S(B),XS(b)
        • B(a);N_GUARD::S(B)
      • Refutation
        • S(b);
    • Try
      • B(D);
      • Threat
        • S(F)
      • Vars
        • S(b);N_GUARD::S(B),XS(b)
        • S(b);N_GUARD::S(B)
        • B(a);N_GUARD::S(B)
      • Refutation
        • S(b);
  • Actual
    • R(G);
    • Threat
      • S(F)
    • Vars
      • P(e);SBLOCK,XB(D)::R1(G)
      • B(a);N_GUARD::S(B)
      • S(b);N_GUARD::S(B)
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