MESON Chess Problem Database

Problem Display
PID: 48072 (8/5B2/6N1/6p1/4k3/8/2K2Q2/2n5 w - - 0 1)

Lincoln, Robert A

Still More Fun with Chess Miniatures, 2002

8/5B2/6N1/6p1/4k3/8/2K2Q2/2n5

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...g4
      • 2.Qf4#
  • Tries
    • 1.Qe3+?
      • 1...Kf5
        • 2.Qf3#
        • 2.Qe6#
      • 1...Kxe3!
    • 1.Qe2+?
      • 1...Kd4
        • 2.Qe5#
      • 1...Kf5
        • 2.Qf3#
        • 2.Qe6#
      • 1...Sxe2!
  • Keys
    • 1.Qg3!
      • 1...Kd4
        • 2.Qe5#
      • 1...Kf5
        • 2.Qf3#
      • 1...Sa2
        • 2.Qd3#
      • 1...Se2
        • 2.Qd3#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
      • 1...g4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAR1(B)
  • Tries
    • Try
      • Q(B);CHECK
      • Refutation
        • K(b);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • S(a);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(b);P-FLIGHT::QAB1(B)
      • K(b);S_FLIGHT::QAR2(B)
      • S(a);N_GUARD::QAB1(B)
      • S(a);N_GUARD::QAB1(B),XS(a)
      • P(c);N_GUARD::QAR1(B)
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