MESON Chess Problem Database

Problem Display
PID: 39763 (8/5N1Q/5pp1/8/6k1/4K3/5P2/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

8/5N1Q/5pp1/8/6k1/4K3/5P2/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qh3#
  • Tries
    • 1.Qxg6+?
      • 1...Kh3
        • 2.Qg3#
      • 1...Kh4!
    • 1.Qh1?
      • 1...Kf5
        • 2.Qe4#
        • 2.Qh3#
      • 1...g5
        • 2.Sh6#
      • 1...f5!
    • 1.Qh4+?
      • 1...Kf5
        • 2.Qh3#
        • 2.Qe4#
      • 1...Kxh4!
    • 1.Qh6?
      • 1...Kf5
        • 2.Qh3#
      • 1...f5
        • 2.Se5#
      • 1...g5!
    • 1.f3+?
      • 1...Kf5
        • 2.Qh3#
      • 1...Kg3!
  • Keys
    • 1.Qh2!
      • 1...Kf5
        • 2.Qh3#
      • 1...f5
        • 2.f3#
      • 1...g5
        • 2.Sh6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P_SPINP(c),S_FLIGHT::QAB(D)
  • Tries
    • Try
      • Q(D);CHECK,XP(c)
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • P(c);SBLOCK::S(C)
      • Refutation
        • P(b);
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAB(D)
        • P(b);N_GUARD,SBLOCK::S(C)
      • Refutation
        • P(c);
    • Try
      • P(A);CHECK
      • Vars
        • K(a);P_SPINP(c),S_FLIGHT::QAB(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::QAB(D)
      • P(b);SBLOCK::P(A)
      • P(c);SBLOCK::S(C)
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Developed and maintained by Brian Stephenson.
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