MESON Chess Problem Database

Problem Display
PID: 46481 (Q7/4b3/2K5/8/4k3/5NR1/5R2/8 w - - 0 1)

Lincoln, Robert A

Still More Fun with Chess Miniatures, 2002

Q7/4b3/2K5/8/4k3/5NR1/5R2/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sd2+?
      • 1...Kd4
        • 2.Qa1#
      • 1...Ke5!
    • 1.Qh8?
      • threat
        • 2.Sd2#
      • 1...Kd3
        • 2.Qd4#
      • 1...Ke3
        • 2.Qd4#
      • 1...Kf4
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Bb4
        • 2.Sg5#
      • 1...Bg5
        • 2.Sxg5#
      • 1...Bf6!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Sd2#
      • 1...Kd3
        • 2.Qd4#
      • 1...Ke3
        • 2.Qd4#
      • 1...Kf4
        • 2.Qe5#
      • 1...Kf5
        • 2.Qe5#
      • 1...Bb4
        • 2.Sg5#
      • 1...Bg5
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Threat
        • S(B)
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
        • K(a);P-FLIGHT::QAB1(E)
        • B(b);N_GUARD::S(B)
        • B(b);N_GUARD::S(B),XB(b)
      • Refutation
        • B(b);
  • Actual
    • Q(E);
    • Threat
      • S(B)
    • Vars
      • K(a);S_FLIGHT::QAR1(E)
      • K(a);P-FLIGHT::QAB1(E)
      • B(b);N_GUARD::S(B)
      • B(b);N_GUARD::S(B),XB(b)
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