MESON Chess Problem Database

Problem Display
PID: 39723 (6N1/4p3/Q5p1/5k2/8/2N3K1/8/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

6N1/4p3/Q5p1/5k2/8/2N3K1/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...e5
      • 2.Qf6#
  • Tries
    • 1.Sxe7+?
      • 1...Kg5
        • 2.Qxg6#
      • 1...Ke5!
    • 1.Qe2?
      • 1...Kg5
        • 2.Qg4#
        • 2.Qe5#
      • 1...e5
        • 2.Qg4#
      • 1...g5
        • 2.Qe4#
      • 1...e6!
    • 1.Qd3+?
      • 1...Ke5
        • 2.Qd5#
      • 1...Ke6
        • 2.Qd5#
      • 1...Kg5!
    • 1.Qb5+?
      • 1...Ke6
        • 2.Qd5#
      • 1...e5!
    • 1.Qa5+?
      • 1...Ke6
        • 2.Qd5#
      • 1...e5!
    • 1.Qd6?
      • 1...Kg5
        • 2.Qe5#
      • 1...e6
        • 2.Qf4#
      • 1...g5
        • 2.Sh6#
        • 2.Sxe7#
      • 1...e5
        • 2.Qf6#
      • 1...exd6!
    • 1.Qe6+?
      • 1...Kg5
        • 2.Qg4#
        • 2.Qe5#
      • 1...Kxe6!
  • Keys
    • 1.Qc4!
      • 1...Ke5
        • 2.Qd5#
      • 1...Kg5
        • 2.Qg4#
      • 1...g5
        • 2.Qe4#
      • 1...e5
        • 2.Qg4#
      • 1...e6
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAR1(C)
  • Tries
    • Try
      • S(D);CHECK,XP(c)
      • Vars
        • K(a);P-FLIGHT::QAR1(C),XP(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • P(c);SBLOCK::QAB1(C)
        • P(b);SBLOCK::QAB1(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • P(c);P_SPINP(c)
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
        • P(c);SBLOCK::QAR1(C)
        • P(c);N_GUARD::QAR1(C)
      • Refutation
        • P(c);XQ(C)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR1(C)
      • P(b);SBLOCK::QAB1(C)
      • P(c);SBLOCK::QAB1(C)
      • P(c);SBLOCK::QAR1(C)
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Developed and maintained by Brian Stephenson.
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