MESON Chess Problem Database

Problem Display
PID: 23118 (3n4/8/1b6/8/k1K5/8/nP1Q4/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

3n4/8/1b6/8/k1K5/8/nP1Q4/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Ba5
      • 2.Qd1#
      • 2.Qc2#
    • 1...Sc1
      • 2.Qb4#
    • 1...Sb4
      • 2.Qxb4#
  • Tries
    • 1.Qd7+?
      • 1...Ka5
        • 2.Qb5#
      • 1...Sc6!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qa3#
      • 1...Ka5
        • 2.Qa3#
      • 1...Bc5
        • 2.Qa6#
      • 1...Sb4
        • 2.Qxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::QAR1(B)
    • S(a);N_GUARD::QAR1(B),XS(a)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • S(d);P_SPINS(d)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(b);P-FLIGHT::QAR2(B)
      • B(c);OGATE::QAR2(B)
      • S(a);N_GUARD::QAR1(B),XS(a)
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