MESON Chess Problem Database

Problem Display
PID: 167112 (6N1/3K4/8/3k4/8/3P2b1/8/2N3Q1 w - - 0 1)

Lincoln, Robert A

Sachmatija, 2010

6N1/3K4/8/3k4/8/3P2b1/8/2N3Q1

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Se7#
  • Tries
    • 1.Sb3?
      • threat
        • 2.Qd4#
        • 2.Qc5#
      • 1...Bf2
        • 2.Qg5#
      • 1...Be5
        • 2.Se7#
        • 2.Qc5#
        • 2.Qh1#
        • 2.Qg2#
      • 1...Bd6
        • 2.Qd4#
      • 1...Ke5!
    • 1.Qe3?
      • threat
        • 2.Sf6#
        • 2.Se7#
      • 1...Be5
        • 2.Se7#
      • 1...Bd6
        • 2.Sf6#
      • 1...Bh4!
  • Keys
    • 1.Se2!
      • threat
        • 2.Qd4#
      • 1...Ke5
        • 2.Qc5#
      • 1...Bf2
        • 2.Qg5#
      • 1...Be5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::S(E)
  • Tries
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);OGATE::QAR(B)
        • B(a);::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::S(E)
      • Refutation
        • B(a);
  • Actual
    • S(A);
    • Threat
      • QAR1(B)
    • Vars
      • K(b);P-FLIGHT::QAR2(B)
      • B(a);OGATE::QAR(B)
      • B(a);SBLOCK::S(E)
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