MESON Chess Problem Database

Problem Display
PID: 151871 (1Bn5/3Np2R/K3kP2/3pN3/B5P1/4b3/8/4r3 w - - 0 1)

Shire, David J

2nd Prize, Bournemouth, 2013

1Bn5/3Np2R/K3kP2/3pN3/B5P1/4b3/8/4r3

#2

8 + 6

56 The Problemist 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Rxe7#
    • 1...Sd6
      • 2.Rxe7#
    • 1...Sa7
      • 2.Rxe7#
    • 1...d4
      • 2.Bb3#
    • 1...exf6
      • 2.Sf8#
  • Tries
    • 1.Sf7?
      • threat
        • 2.Sd8#
      • 1...Bb6
        • 2.Sg5#
      • 1...d4!
    • 1.f7?
      • threat
        • 2.f8S#
      • 1...d4
        • 2.Bb3#
      • 1...Bh6
        • 2.Rxh6#
      • 1...Rf1!
  • Keys
    • 1.Rf7!
      • threat
        • 2.Sf8#
      • 1...d4
        • 2.Bb3#
      • 1...Bh6
        • 2.Sc5#
      • 1...Sd6
        • 2.Rxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • S(f);N_GUARD::R1(G),XP(e)
    • P(c);OGATEB::B(A)
    • P(e);SBLOCK,XP(E)::S(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(C)
      • Vars
        • B(b);N_GUARD::S(C)
      • Refutation
        • P(c);
    • Try
      • P(E);
      • Threat
        • P=S
      • Vars
        • P(c);OGATEB::B(A)
        • B(b);N_GUARD::R(G),XB(b)
      • Refutation
        • R(a);
  • Actual
    • R(G);
    • Threat
      • S(F)
    • Vars
      • P(c);OGATEB::B(A)
      • B(b);N_GUARD::S(F)
      • S(f);N_GUARD::R1(G),XP(e)
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