MESON Chess Problem Database

Problem Display
PID: 39190 (3B4/5K2/8/8/5pk1/8/8/2Q1N3 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

3B4/5K2/8/8/5pk1/8/8/2Q1N3

#2

4 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Qa3?
      • 1...Kh5
        • 2.Qh3#
      • 1...f3
        • 2.Qxf3#
      • 1...Kf5!
    • 1.Qe3?
      • 1...Kf5
        • 2.Qe6#
      • 1...Kh5
        • 2.Qh3#
      • 1...f3
        • 2.Qxf3#
      • 1...fxe3!
    • 1.Qxf4+?
      • 1...Kh3
        • 2.Qh4#
      • 1...Kh5
        • 2.Qg5#
        • 2.Qh4#
      • 1...Kxf4!
    • 1.Qc2?
      • 1...Kg3
        • 2.Qg2#
      • 1...Kh3
        • 2.Qg2#
      • 1...Kh5
        • 2.Qg6#
      • 1...f3!
    • 1.Qc3?
      • 1...Kh5
        • 2.Qh3#
      • 1...f3
        • 2.Qxf3#
      • 1...Kf5!
    • 1.Qc8+?
      • 1...Kh5
        • 2.Qh3#
      • 1...Kg3!
  • Keys
    • 1.Qc6!
      • 1...Kg3
        • 2.Qg2#
      • 1...Kh3
        • 2.Qg2#
      • 1...Kf5
        • 2.Qe6#
      • 1...Kh5
        • 2.Qg6#
      • 1...f3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
        • P(a);::QAB1(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);S_FLIGHT::QAR2(A)
        • P(a);::QAB1(A),XP(a)
      • Refutation
        • P(a);XQ(A)
    • Try
      • Q(A);CHECK,XP(a)
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • K(b);S_FLIGHT::QAB1(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
        • P(a);::QAB1(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);P-FLIGHT::QAR1(A)
      • K(b);S_FLIGHT::QAB1(A)
      • P(a);::QAB1(A),XP(a)
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