MESON Chess Problem Database

Problem Display
PID: 137152 (6r1/2R1pN2/2KNkr1R/3n4/3P1p1B/8/B7/2b4b w - - 0 1)

Fegan, Bertram George

Australasian Chess Magazine, 1919

6r1/2R1pN2/2KNkr1R/3n4/3P1p1B/8/B7/2b4b

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rfg6
      • 2.Rxe7#
    • 1...Rxh6
      • 2.Rxe7#
    • 1...Rg1
      • 2.Sd8#
    • 1...Rg2
      • 2.Sd8#
      • 2.Bxd5#
    • 1...Rg3
      • 2.Sd8#
    • 1...Rg4
      • 2.Sd8#
    • 1...Rg5
      • 2.Sxg5#
      • 2.Sd8#
    • 1...Rgg6
      • 2.Sd8#
    • 1...Rg7
      • 2.Sd8#
    • 1...Ra8
      • 2.Sg5#
    • 1...Rb8
      • 2.Sg5#
    • 1...Rc8
      • 2.Sg5#
    • 1...Rd8
      • 2.Sg5#
      • 2.Sxd8#
    • 1...Re8
      • 2.Sg5#
    • 1...Rf8
      • 2.Sg5#
    • 1...Rh8
      • 2.Sg5#
    • 1...f3
      • 2.Bxd5#
    • 1...exd6
      • 2.Rxf6#
  • Tries
    • 1.Rh5?
      • threat
        • 2.Re5#
      • 1...Rf5
        • 2.Rxe7#
      • 1...Rg5
        • 2.Sxg5#
        • 2.Sd8#
      • 1...exd6!
  • Keys
    • 1.Rg6!
      • threat
        • 2.Sg5#
      • 1...Rfxg6
        • 2.Rxe7#
      • 1...Rgxg6
        • 2.Sd8#
      • 1...exd6
        • 2.Rxf6#
      • 1...f3
        • 2.Bxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • R(f);::R1(G),XP(g)
    • R(f);N_SPINR(f),XR(F)::R1(G),XP(g)
    • R(h);N_GUARD::S(H)
    • R(h);N_GUARD,N_SPINR(f)::S(H)
    • R(h);N_GUARD,P_PINR(G)::S(H)
    • P(c);S_CUTB(b)::B(A),XS(d)
    • P(g);N_GUARD,XS(E)::R1(F),XR(f)
  • Tries
    • Try
      • R(F);N_PINR(f)
      • Threat
        • R1(F)
      • Vars
        • R(f);::R1(G),XP(g)
      • Refutation
        • P(g);XS(E)
  • Actual
    • R(F);
    • Threat
      • S(H)
    • Vars
      • R(f);N_SPINR(f),XR(F)::R1(G),XP(g)
      • R(h);N_GUARD,N_SPINR(f),XR(F)::S(H)
      • P(g);N_GUARD,XS(E)::R1(F),XR(f)
      • P(c);S_CUTB(b)::B(A),XS(d)
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