MESON Chess Problem Database

Problem Display
PID: 22736 (7r/7r/4Q3/6Pk/4N3/6K1/8/8 w - - 0 1)

Lincoln, Robert A

Newark Star-Ledger, 1998

7r/7r/4Q3/6Pk/4N3/6K1/8/8

#2

4 + 3

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Rf7
      • 2.Qxf7#
  • Tries
    • 1.Qe8+?
      • 1...Rf7
        • 2.Qxf7#
      • 1...Rxe8!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Sf6#
      • 1...Rh6
        • 2.g6#
      • 1...Rf7
        • 2.Qxf7#
      • 1...Rf8
        • 2.Qxh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD::QAB(D),XR(b)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::QAB(D),XR(b)
      • Refutation
        • R(c);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • S(B)
    • Vars
      • R(b);SBLOCK::QAR(D)+P(C)
      • R(b);N_GUARD::QAB(D),XR(b)
      • R(c);N_GUARD::QAR2(D),XR(b)
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