MESON Chess Problem Database

Problem Display
PID: 235770 (1B6/4pN1Q/5p2/5NPB/2K1k3/5p2/8/8 w - - 0 1)

Barnes, Barry Peter

The Problemist Supplement, 2020

1B6/4pN1Q/5p2/5NPB/2K1k3/5p2/8/8

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...fxg5
      • 2.Sxg5#
  • Tries
    • 1.S7h6?
      • threat
        • 2.Qxe7#
      • 1...e6
        • 2.Qb7#
      • 1...e5!
    • 1.Bh2?
      • 1...fxg5
        • 2.Sxg5#
      • 1...e5
        • 2.S7d6#
      • 1...e6
        • 2.S7d6#
      • 1...f2!
    • 1.Bg3?
      • 1...fxg5
        • 2.Sxg5#
      • 1...e5
        • 2.S7d6#
      • 1...e6
        • 2.S7d6#
      • 1...f2!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Qh4#
      • 1...fxg5
        • 2.Sxg5#
      • 1...f2
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);XP(C)::S(E),XP(c)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR(F),XP(d)
      • Vars
        • P(d);OGATE::QAB(F)
      • Refutation
        • P(d);
    • Try
      • B(G);
      • Vars
        • P(c);XP(C)::S(E),XP(c)
        • P(d);N_GUARD::S(E)
      • Refutation
        • P(a);
    • Try
      • B(G);
      • Vars
        • P(c);XP(C)::S(E),XP(c)
        • P(d);N_GUARD::S(E)
      • Refutation
        • P(a);
  • Actual
    • B(D);
    • Threat
      • QAR(F)
    • Vars
      • P(c);XP(C)::S(E),XP(c)
      • P(a);OGATEB::QAB(F)
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Developed and maintained by Brian Stephenson.
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