MESON Chess Problem Database

Problem Display
PID: 47362 (8/8/8/3Q1N2/1p6/2k5/1p6/1n1K4 w - - 0 1)

Shanahan, Ian

Fleck MT, 1995

8/8/8/3Q1N2/1p6/2k5/1p6/1n1K4

#2

3 + 4

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...b3
      • 2.Qd4#
  • Tries
    • 1.Ke2?
      • threat
        • 2.Qd3#
      • 1...b3
        • 2.Qc5#
      • 1...Kc2!
    • 1.Sg3?
      • threat
        • 2.Se2#
        • 2.Se4#
      • 1...Sd2
        • 2.Se2#
      • 1...b3!
    • 1.Qc6+?
      • 1...Kd3
        • 2.Qc2#
      • 1...Kb3!
    • 1.Qc5+?
      • 1...Kd3
        • 2.Qd4#
        • 2.Qc2#
      • 1...Kb3!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Se4#
        • 2.Sb5#
        • 2.Qc4#
      • 1...b3
        • 2.Qc4#
      • 1...Sd2
        • 2.Sb5#
      • 1...Sa3
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK::QAB1(B)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAR1(B)
      • Vars
        • P(d);SBLOCK::QAR2(B)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::S(C)
      • Refutation
        • P(d);
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • DUALS(3)
    • Vars
      • P(d);::QAR1(B)
      • S(a);::S(C)
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