MESON Chess Problem Database

Problem Display
PID: 27301 (8/6p1/3PPkp1/R6n/3N1N2/3B1KP1/8/4R3 w - - 0 1)

Lebeck, Donald

Mate in Two!! (Lebeck), 1992

8/6p1/3PPkp1/R6n/3N1N2/3B1KP1/8/4R3

#2

9 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Sd5#
      • 2.Sxh5#
      • 2.Rf5#
  • Tries
    • 1.Re4?
      • 1...Sxf4
        • 2.Rxf4#
      • 1...g5
        • 2.Rf5#
      • 1...Sxg3!
    • 1.d7?
      • threat
        • 2.d8Q#
        • 2.d8B#
      • 1...Sxg3
        • 2.d8Q#
        • 2.d8B#
      • 1...Sxf4
        • 2.d8Q#
        • 2.d8B#
      • 1...g5
        • 2.Sd5#
        • 2.d8Q#
        • 2.d8B#
      • 1...Ke7!
  • Keys
    • 1.g4!
      • threat
        • 2.g5#
      • 1...g5
        • 2.Sd5#
        • 2.Sxh5#
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Vars
        • S(a);OGATE,XS(F)::R(A),XS(a)
        • P(c);N_GUARD::R1(G)
      • Refutation
        • S(a);XP(D)
    • Try
      • P(H);
      • Threat
        • P=Q
      • Vars
        • S(a);XP(D)::P=Q
        • S(a);XS(F)::P=Q
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • P(D);
    • Threat
      • P(D)
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