MESON Chess Problem Database

Problem Display
PID: 154708 (k7/2K4p/1p6/bN1p1P2/6p1/8/N2p4/6Qb w - - 0 1)

Williams, Philip Hamilton

Devon and Exeter Gazette, 1906

k7/2K4p/1p6/bN1p1P2/6p1/8/N2p4/6Qb

#2

5 + 8

15351 SCPF/BCPS Black Books 2015

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qxh1#
  • Tries
    • 1.Qc5?
      • threat
        • 2.Qf8#
        • 2.Qc6#
      • 1...Bb4
        • 2.Qc6#
      • 1...d4
        • 2.Qf8#
      • 1...bxc5+!
    • 1.Qxb6?
      • threat
        • 2.Qxa5#
      • 1...Bc3
        • 2.Qa7#
        • 2.Qa6#
        • 2.Qc6#
        • 2.Qb7#
        • 2.Qb8#
      • 1...Bb4
        • 2.Qa7#
        • 2.Qa6#
        • 2.Qc6#
        • 2.Qb7#
        • 2.Qb8#
      • 1...Bxb6+!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Qh8#
      • 1...Bc3
        • 2.Saxc3#
      • 1...Bb4
        • 2.Sxb4#
      • 1...d4
        • 2.Qxh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(e);OGATEB::QAB(A),XB(a)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(d);::QAB(A)
        • P(e);::QAR(A)
      • Refutation
        • P(f);CHECK,XQ(A)
    • Try
      • Q(A);P_SPINQ(A),XP(f)
      • Threat
        • QAR(A),XB(d)
      • Refutation
        • B(d);CHECK,XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • B(d);::QAR(A)+S(B),XB(d)
      • P(e);OGATEB::QAB(A),XB(a)
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