MESON Chess Problem Database

Problem Display
PID: 1044 (q3k3/1p2p3/4Q1K1/8/2N5/8/8/8 w - - 0 1)

Lincoln, Robert A

The Problemist Supplement, 1998

q3k3/1p2p3/4Q1K1/8/2N5/8/8/8

#2

3 + 4

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qf7#
    • 1...Qa1
      • 2.Qc8#
    • 1...Qa2
      • 2.Qc8#
    • 1...Qa3
      • 2.Qc8#
    • 1...Qa4
      • 2.Qc8#
    • 1...Qa7
      • 2.Qc8#
    • 1...Qc8
      • 2.Qxc8#
  • Tries
    • 1.Se5?
      • threat
        • 2.Qg8#
      • 1...Kd8
        • 2.Qd7#
      • 1...Kf8
        • 2.Qf7#
      • 1...Qa2
        • 2.Qc8#
      • 1...Qa6!
    • 1.Sd6+?
      • 1...Kf8
        • 2.Qf7#
      • 1...Kd8!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Qg8#
      • 1...Kd8
        • 2.Qd7#
      • 1...Kf8
        • 2.Qf7#
      • 1...Qa2
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • K(d);N_SPINP(b),P-FLIGHT::QAR1(B)
    • Q(c);N_GUARD::QAR2(B)
    • Q(c);N_GUARD::QAR2(B),XQ(c)
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR2(B)
      • Vars
        • K(d);N_SPINP(b),P-FLIGHT::QAR1(B)
        • Q(c);N_GUARD::QAR2(B)
      • Refutation
        • Q(c);P_PINQ(B)
    • Try
      • S(A);CHECK
      • Vars
        • K(d);N_SPINP(b),P-FLIGHT::QAR1(B)
      • Refutation
        • K(d);N_SPINP(b),P-FLIGHT
  • Actual
    • S(A);
    • Threat
      • QAR2(B)
    • Vars
      • K(d);N_SPINP(b),P-FLIGHT::QAR1(B)
      • Q(c);N_GUARD::QAR2(B)
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