MESON Chess Problem Database

Problem Display
PID: 186131 (6b1/B2R4/1b2p2N/1N2k1P1/R1np4/2rn2P1/2P5/6KB w - - 0 1)

Petite, Efren

Chess, 1959

6b1/B2R4/1b2p2N/1N2k1P1/R1np4/2rn2P1/2P5/6KB

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Ba5
      • 2.Bxd4#
    • 1...Bc7
      • 2.Bxd4#
    • 1...Bd8
      • 2.Bxd4#
  • Tries
    • 1.Bb8+?
      • 1...Sd6
        • 2.Bxd6#
      • 1...Bc7!
  • Keys
    • 1.Sxd4!
      • threat
        • 2.Sg4#
      • 1...Bxd4+
        • 2.Bxd4#
      • 1...Sf2
        • 2.Sc6#
      • 1...Se3
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(f);OGATE::B(I),XP(d)
  • Tries
    • Try
      • B(I);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::B(I),XS(c)
      • Refutation
        • B(f);P_SPINB(f)
  • Actual
    • S(F);P_SPINS(F),XP(d)
    • Threat
      • S(H)
    • Vars
      • B(f);CHECK,OGATE,XS(F)::B(I),XB(f)
      • S(b);N_PINS(F)::S(F)
      • S(c);N_PINS(F)::S(F)
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