MESON Chess Problem Database

Problem Display
PID: 23875 (1Q6/6b1/8/pp6/k2P4/8/K7/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

1Q6/6b1/8/pp6/k2P4/8/K7/8

#2

3 + 4

5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Qe8#
  • Tries
    • 1.Qg3?
      • threat
        • 2.Qa3#
        • 2.Qb3#
      • 1...Kb4
        • 2.Qb3#
      • 1...Bf8
        • 2.Qb3#
      • 1...b4!
    • 1.Qd6?
      • threat
        • 2.Qa3#
      • 1...b4
        • 2.Qc6#
        • 2.Qd7#
      • 1...Bf8!
    • 1.Qf8?
      • threat
        • 2.Qa3#
      • 1...b4
        • 2.Qe8#
      • 1...Bxf8!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qb3#
      • 1...Kb4
        • 2.Qb3#
      • 1...b4
        • 2.Qe8#

Anticipated by 76628(1940)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB,SBLOCK::QAB(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • B(d);::QAB1(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Refutation
        • B(d);
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • P(c);OGATEB,SBLOCK::QAB(C)
      • Refutation
        • B(d);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • P(c);OGATEB,SBLOCK::QAB(C)
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