MESON Chess Problem Database

Problem Display
PID: 2090 (8/5p2/3Q3b/3B1k1b/5P2/7P/5K2/8 w - - 0 1)

JB of Bridport (Brown, John)

Source?, 0000

8/5p2/3Q3b/3B1k1b/5P2/7P/5K2/8

#2

5 + 4

15 British Chess Magazine 1994
15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Bg6
      • 2.Qe5#
  • Tries
    • 1.Qe6+?
      • 1...Kxf4
        • 2.Qf6#
      • 1...fxe6!
  • Keys
    • 1.Qe7!
      • 1...Kxf4
        • 2.Qf6#
      • 1...Kg6
        • 2.Qxf7#
      • 1...Bxf4
        • 2.Be4#
      • 1...Bd1
        • 2.Qxf7#
      • 1...Be2
        • 2.Qxf7#
      • 1...Bf3
        • 2.Qxf7#
      • 1...Bg4
        • 2.Qxf7#
      • 1...Bg6
        • 2.Qe5#
      • 1...Bg5
        • 2.Qxg5#
      • 1...Bg7
        • 2.Qg5#
      • 1...Bf8
        • 2.Qg5#
      • 1...f6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::QAR1(E)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(C)::QAR2(E)
      • Refutation
        • P(d);XQ(E)
  • Actual
    • Q(E);
    • Vars
      • K(a);P-FLIGHT,XP(C)::QAR2(E)
      • K(a);S_FLIGHT::QAB1(E),XP(d)
      • B(c);SBLOCK,XP(C)::B(D)
      • B(b);N_GUARD::QAR2(E),XP(d)
      • B(b);SBLOCK::QAR1(E)
      • B(c);N_GUARD::QAR1(E),XB(c)
      • B(c);N_GUARD::QAR1(E)
      • P(d);SBLOCK::QAB1(E)
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