MESON Chess Problem Database

Problem Display
PID: 913 (8/3K1p2/1b6/3k3r/R7/8/8/2Q5 w - - 0 1)

Lincoln, Robert A

The Problemist Supplement, 1992

8/3K1p2/1b6/3k3r/R7/8/8/2Q5

#2

3 + 4

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qc4#
      • 2.Qc6#
  • Tries
    • 1.Re4?
      • threat
        • 2.Qc4#
        • 2.Qc6#
      • 1...Rh6
        • 2.Qc4#
      • 1...Bd4
        • 2.Qc6#
      • 1...Bc5
        • 2.Qc4#
      • 1...Kxe4!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Qd6#
      • 1...Kc5
        • 2.Qc4#
      • 1...Re5
        • 2.Qc4#
      • 1...Rh6
        • 2.Qf5#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bc5
        • 2.Qe4#
      • 1...Bc7
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::QAB1(A)
        • B(c);::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • R(b);SBLOCK::QAB1(A)
      • R(b);N_GUARD::QAR2(A)
      • B(c);N_GUARD::QAR1(A),XB(c)
      • B(c);SBLOCK::QAB1(A)
      • B(c);N_GUARD::QAR1(A)
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