MESON Chess Problem Database

Problem Display
PID: 245810 (B7/3NK3/8/2p1N1p1/2Rn1kP1/1r2rP2/7P/2B5 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schweizerische Schachzeitung, 1993

B7/3NK3/8/2p1N1p1/2Rn1kP1/1r2rP2/7P/2B5

#2

9 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Kf7?
      • threat
        • 2.Sg6#
      • 1...Rb6
        • 2.Sd3#
      • 1...Rb7!
  • Keys
    • 1.Be4!
      • threat
        • 2.Sg6#
      • 1...Sf5+
        • 2.Bxf5#
      • 1...Sc6+
        • 2.Bxc6#
      • 1...Sxf3
        • 2.Bxf3#
      • 1...Rb6
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(H);N_SPINS(F),P-FLIGHT
      • Threat
        • S(F)
      • Vars
        • R(a);N_GUARD::S(F)
      • Refutation
        • R(a);P_PINS(G)
  • Actual
    • B(I);N_PINS(c),N_SPINS(F)
    • Threat
      • S(F)
    • Vars
      • S(c);CHECK,OGATEB::R(D)+B(I),XS(c)
      • S(c);OGATE,XP(C)::R(D)+B(I),XS(c)
      • R(a);N_GUARD::S(F)
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