MESON Chess Problem Database

Problem Display
PID: 160828 (r7/q5p1/2p4B/8/2B2n2/1P2p3/b1Q4K/k1N5 w - - 0 1)

Williams, Philip Hamilton

Morning Post, 1904

(First published on Mon Aug 8 1904)

r7/q5p1/2p4B/8/2B2n2/1P2p3/b1Q4K/k1N5

#2

6 + 8

15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Qa4
      • 2.Bxg7#
    • 1...Qa6
      • 2.Bxg7#
    • 1...Bb1
      • 2.Qc3#
    • 1...Bxb3
      • 2.Sxb3#
  • Tries
    • 1.Bxg7+?
      • 1...Qd4
        • 2.Bxd4#
      • 1...Qxg7!
  • Keys
    • 1.Ba6!
      • threat
        • 2.Qxa2#
      • 1...Qxa6
        • 2.Bxg7#
      • 1...Bxb3
        • 2.Sxb3#
      • 1...Bb1
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • Q(f);N_GUARD::B(F),XP(g)
    • B(b);SBLOCK::QAB(B)
    • B(b);XP(D)::S(A),XB(b)
  • Tries
    • Try
      • B(F);CHECK,XP(g)
      • Vars
        • Q(f);N_GUARD,P_SPINQ(f)::B(F),XQ(f)
      • Refutation
        • Q(f);XB(F)
  • Actual
    • B(E);
    • Threat
      • QAR1(B),XB(b)
    • Vars
      • Q(f);N_GUARD,XB(E)::B(F),XP(g)
      • B(b);XP(D)::S(A),XB(b)
      • B(b);SBLOCK::QAB(B)
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