MESON Chess Problem Database

Problem Display
PID: 39228 (8/8/8/3K4/6N1/8/6kN/4Q3 w - - 0 1)

Lincoln, Robert A

Newark Star-Ledger, 1998

8/8/8/3K4/6N1/8/6kN/4Q3

#2

4 + 1

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Tries
    • 1.Qf2+?
      • 1...Kh1
        • 2.Qf1#
      • 1...Kh3!
    • 1.Qg3+?
      • 1...Kh1
        • 2.Sf2#
      • 1...Kxg3!
  • Keys
    • 1.Sf1!
      • 1...Kg1
        • 2.Sfe3#
      • 1...Kh1
        • 2.Sfe3#
      • 1...Kf3
        • 2.Qe4#
      • 1...Kh3
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
  • Actual
    • S(B);
    • Vars
      • K(a);P-FLIGHT::QAR(A)+S(B)
      • K(a);S_FLIGHT::QAR(A)+S(B)
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);S_FLIGHT::QAR1(A)
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