MESON Chess Problem Database

Problem Display
PID: 81986 (1BB5/2R5/3R3K/4NpP1/4rk2/3Pp1p1/r3bqP1/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Boletim da UBP, 1991

1BB5/2R5/3R3K/4NpP1/4rk2/3Pp1p1/r3bqP1/8

#2

9 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bg4
      • 2.Sg6#
  • Tries
    • 1.Rf6?
      • threat
        • 2.Rxf5#
      • 1...Kxe5
        • 2.Rd7#
      • 1...Rxe5
        • 2.Rc4#
      • 1...Bg4
        • 2.Sg6#
      • 1...Ra6!
  • Keys
    • 1.Rf7!
      • threat
        • 2.Rxf5#
      • 1...Kxe5
        • 2.Rd8#
      • 1...Rxe5
        • 2.Rd4#
      • 1...Bg4
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::S(C)
  • Tries
    • Try
      • R(E);P_PINP(h)
      • Threat
        • R1(E),XP(h)
      • Vars
        • K(g);N_SPINP(h),OGATEB,S_FLIGHT,XS(C)::B(H)+R(G)
        • R(f);OGATEB,XS(C)::R(G)
        • B(b);SBLOCK::S(C)
      • Refutation
        • R(a);P_PINR(E)
  • Actual
    • R(G);P_PINP(h)
    • Threat
      • R1(G),XP(h)
    • Vars
      • K(g);N_SPINP(h),OGATEB,S_FLIGHT,XS(C)::B(H)+R(E)
      • R(f);OGATEB,XS(C)::R(E)
      • B(b);SBLOCK::S(C)
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