MESON Chess Problem Database

Problem Display
PID: 23217 (1q6/8/3p4/Q7/8/1k1P4/8/BK6 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

1q6/8/3p4/Q7/8/1k1P4/8/BK6

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Qb4
      • 2.Qa2#
  • Tries
    • 1.Qb5+?
      • 1...Ka3
        • 2.Bb2#
      • 1...Qxb5!
  • Keys
    • 1.Bb2!
      • threat
        • 2.Qa3#
      • 1...Qa7
        • 2.Qb5#
      • 1...Qb4
        • 2.Qa2#
      • 1...Qa8
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(c);SBLOCK::QAB1(D)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT,P_PINQ(D)::B(A)
      • Refutation
        • Q(c);XQ(D)
  • Actual
    • B(A);
    • Threat
      • QAR1(D)
    • Vars
      • Q(c);N_GUARD::QAR2(D)
      • Q(c);SBLOCK::QAB1(D)
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