MESON Chess Problem Database

Problem Display
PID: 50544 (8/3B4/8/6K1/2Qpk3/8/6P1/8 w - - 0 1)

Lincoln, Robert A

StrateGems, 2003

8/3B4/8/6K1/2Qpk3/8/6P1/8

#2

4 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe6#
  • Tries
    • 1.Kg4?
      • 1...Ke5
        • 2.Qe6#
      • 1...Ke3!
    • 1.Bh3?
      • 1...Ke5
        • 2.Qe6#
      • 1...Ke3!
    • 1.Bb5?
      • threat
        • 2.Qe6#
      • 1...Ke3
        • 2.Qe2#
      • 1...Ke5!
    • 1.Bf5+?
      • 1...Ke5
        • 2.Qe6#
        • 2.Qc5#
      • 1...Ke3!
    • 1.Bc6+?
      • 1...Ke5
        • 2.Qd5#
      • 1...Ke3!
    • 1.Be6?
      • threat
        • 2.Qe2#
      • 1...Ke5
        • 2.Qd5#
      • 1...Ke3!
    • 1.Bc8?
      • 1...Ke5
        • 2.Qe6#
      • 1...Ke3!
    • 1.Qb3?
      • 1...Ke5
        • 2.Qe6#
      • 1...d3!
  • Keys
    • 1.Bg4!
      • 1...Ke3
        • 2.Qe2#
      • 1...Ke5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);
      • Threat
        • QAR2(B)
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);CHECK
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);CHECK
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);
      • Threat
        • QAR2(B)
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • Q(B);N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • P(a);
  • Actual
    • B(D);
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(B)
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