MESON Chess Problem Database

Problem Display
PID: 23046 (8/8/8/3Q4/kp6/8/8/1N1K4 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/8/8/3Q4/kp6/8/8/1N1K4

#2

3 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2?
      • 1...Ka3
        • 2.Qb3#
      • 1...b3!
    • 1.Sc3+?
      • 1...Ka3
        • 2.Qa2#
      • 1...bxc3!
    • 1.Qc6+?
      • 1...Kb3
        • 2.Qc2#
      • 1...Ka5!
    • 1.Qf5?
      • 1...Kb3
        • 2.Qc2#
      • 1...b3!
  • Keys
    • 1.Qc5!
      • 1...Kb3
        • 2.Qc2#
      • 1...b3
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • P(b);
    • Try
      • S(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • P(b);XS(A)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • P(b);
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::QAB1(C)
      • P(b);N_GUARD,SBLOCK::S(A)
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