MESON Chess Problem Database

Problem Display
PID: 24239 (8/5N2/8/8/K2pk1B1/8/8/Q4N2 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

8/5N2/8/8/K2pk1B1/8/8/Q4N2

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qxd4#
    • 1...d3
      • 2.Qe5#
  • Tries
    • 1.Kb3?
      • 1...Kd3
        • 2.Qb1#
      • 1...Kf4
        • 2.Qxd4#
      • 1...d3
        • 2.Qe5#
      • 1...Kd5!
    • 1.Kb5?
      • 1...Kf4
        • 2.Qxd4#
      • 1...Kd5
        • 2.Qa8#
      • 1...d3
        • 2.Qe5#
      • 1...Kd3!
  • Keys
    • 1.Kb4!
      • 1...Kd3
        • 2.Qb1#
      • 1...Kf4
        • 2.Qxd4#
      • 1...Kd5
        • 2.Qa8#
      • 1...d3
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(A),XP(a)
    • P(a);OGATE,SBLOCK::QAR1(A)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(b);S_FLIGHT::QAB(A)
        • K(b);P-FLIGHT::QAR2(A),XP(a)
        • P(a);OGATE,SBLOCK::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(C);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XP(a)
        • K(b);S_FLIGHT::QAB(A)
        • P(a);OGATE,SBLOCK::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • K(C);P-FLIGHT
    • Vars
      • K(b);S_FLIGHT::QAB(A)
      • K(b);P-FLIGHT::QAR2(A),XP(a)
      • P(a);OGATE,SBLOCK::QAR1(A)
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