MESON Chess Problem Database

Problem Display
PID: 16257 (6K1/3N3N/8/5k2/5b2/8/4Q3/8 w - - 0 1)

Lincoln, Robert A

The Problemist, 2000

6K1/3N3N/8/5k2/5b2/8/4Q3/8

#2

4 + 2

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sdf6?
      • threat
        • 2.Qe4#
      • 1...Kg6
        • 2.Qh5#
      • 1...Be5
        • 2.Qg4#
      • 1...Be3!
  • Keys
    • 1.Shf6!
      • threat
        • 2.Qg4#
      • 1...Kg5
        • 2.Qh5#
      • 1...Kg6
        • 2.Qh5#
      • 1...Bg5
        • 2.Qe4#

Anticipated by 240499(1990), 35512(1992)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • B(a);SBLOCK::QAB1(A)
      • Refutation
        • B(a);
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(b);P-FLIGHT::QAR1(A)
      • K(b);S_FLIGHT::QAB1(A)
      • B(a);SBLOCK::QAB1(A)
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