MESON Chess Problem Database

Problem Display
PID: 911 (3r4/B7/8/5P2/K1k5/3p4/8/4Q3 w - - 0 1)

Lincoln, Robert A

The Problemist Supplement, 1992

3r4/B7/8/5P2/K1k5/3p4/8/4Q3

#2

4 + 3

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qe6#
    • 1...Rd5
      • 2.Qb4#
      • 2.Qc1#
  • Tries
    • 1.Qe4+?
      • 1...Rd4
        • 2.Qc6#
        • 2.Qxd4#
      • 1...Kc3!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qc5#
      • 1...Kc3
        • 2.Qc1#
      • 1...Kd5
        • 2.Qe6#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Rd5
        • 2.Qc1#
      • 1...Rc8
        • 2.Qd4#
      • 1...d2
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(b);P-FLIGHT,P_SPINP(a)::QAR2(A)
      • K(b);S_FLIGHT::QAB1(A)
      • R(c);N_GUARD::QAR1(A),XR(c)
      • R(c);SBLOCK::QAR(A)
      • R(c);N_GUARD::QAR1(A)
      • P(a);OGATE::QAB1(A)
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