MESON Chess Problem Database

Problem Display
PID: 7692 (1rk5/1p6/4K3/1N6/7b/8/8/7Q w - - 0 1)

Lincoln, Robert A

The Problemist, 1992

1rk5/1p6/4K3/1N6/7b/8/8/7Q

#2

3 + 4

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Qh8#
    • 1...Bf2
      • 2.Qh8#
    • 1...Bg3
      • 2.Qh8#
  • Tries
    • 1.Qc6+?
      • 1...Kd8
        • 2.Qd7#
      • 1...bxc6!
  • Keys
    • 1.Qh2!
      • threat
        • 2.Qc7#
      • 1...Kd8
        • 2.Qxb8#
      • 1...Bg3
        • 2.Qh8#
      • 1...Bd8
        • 2.Sa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(a);OGATE::QAR(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(A)
      • Refutation
        • P(b);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(d);P-FLIGHT::QAR2(A),XR(c)
      • B(a);OGATE::QAR(A)
      • B(a);SBLOCK::S(B)
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