MESON Chess Problem Database

Problem Display
PID: 81774 (8/1K6/Nn6/kP4BR/P7/p1n5/2B5/R1N5 w - - 0 1)

Petite, Efren

Probleemblad, 2008

8/1K6/Nn6/kP4BR/P7/p1n5/2B5/R1N5

#2

9 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sxb5
      • 2.Bd2#
  • Tries
    • 1.Bd2?
      • threat
        • 2.Bxc3#
      • 1...Sxa4
        • 2.Sb3#
      • 1...Sd5!
    • 1.Bd8?
      • threat
        • 2.Bxb6#
      • 1...Sxa4
        • 2.Sb3#
      • 1...Sd5!
  • Keys
    • 1.Rxa3!
      • threat
        • 2.Sb3#
      • 1...Scxa4
        • 2.Bd2#
      • 1...Sbxa4
        • 2.Bd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(b);OGATEB,XP(E)::B(F)
  • Tries
    • Try
      • B(F);P_PINS(b)
      • Threat
        • B(F),XS(b)
      • Vars
        • S(d);SBLOCK,XP(D)::S(B)
      • Refutation
        • S(d);
    • Try
      • B(F);P_PINS(d)
      • Threat
        • B(F),XS(d)
      • Vars
        • S(b);SBLOCK,XP(D)::S(B)
      • Refutation
        • S(b);
  • Actual
    • R(A);XP(a)
    • Threat
      • S(B)
    • Vars
      • S(b);OGATEB,P_SPINS(b),XP(D)::B(F)
      • S(d);OGATEB,P_SPINS(d),XP(D)::B(F)
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