MESON Chess Problem Database

Problem Display
PID: 24238 (8/8/8/3ppp2/4k3/1Q6/8/3BK3 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

8/8/8/3ppp2/4k3/1Q6/8/3BK3

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qf3#
  • Tries
    • 1.Ke2?
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Qb4#
      • 1...d4
        • 2.Qf3#
      • 1...f4
        • 2.Qd3#
      • 1...Kf4!
    • 1.Qc3?
      • 1...d4
        • 2.Qf3#
      • 1...f4
        • 2.Bc2#
      • 1...Kf4!
  • Keys
    • 1.Kd2!
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Qb4#
      • 1...Kf4
        • 2.Qe3#
      • 1...d4
        • 2.Qf3#
      • 1...f4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAB1(C)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
        • P(b);SBLOCK::QAB1(C)
        • P(d);SBLOCK::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(b);SBLOCK::QAB1(C)
        • P(d);SBLOCK::B(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • K(a);P-FLIGHT::QAB1(C)
      • P(b);SBLOCK::QAB1(C)
      • P(d);SBLOCK::QAB1(C)
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