MESON Chess Problem Database

Problem Display
PID: 47262 (8/8/8/1N3N2/K1p2b2/3k4/6Q1/8 w - - 0 1)

Lincoln, Robert A

Still More Fun with Chess Miniatures, 2002

8/8/8/1N3N2/K1p2b2/3k4/6Q1/8

#2

4 + 3

136 Problem Observer 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Sa3?
      • threat
        • 2.Qc2#
      • 1...Kc3
        • 2.Qc2#
      • 1...Bd2!
    • 1.Sbd4?
      • threat
        • 2.Qc2#
      • 1...Kc3
        • 2.Qc2#
      • 1...c3
        • 2.Qe2#
      • 1...Bd2!
    • 1.Sg3?
      • threat
        • 2.Qe2#
      • 1...Ke3
        • 2.Qe2#
      • 1...Bd2
        • 2.Qe4#
      • 1...Bxg3!
  • Keys
    • 1.Sfd4!
      • threat
        • 2.Qe2#
      • 1...Ke3
        • 2.Qe2#
      • 1...Be3
        • 2.Qc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • B(c);
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • P(b);SBLOCK::QAB1(A)
      • Refutation
        • B(c);
    • Try
      • S(D);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • B(c);SBLOCK::QAB1(A)
      • Refutation
        • B(c);XS(D)
  • Actual
    • S(D);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • B(c);SBLOCK::QAB1(A)
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