MESON Chess Problem Database

Problem Display
PID: 134940 (8/3p1N2/K2p4/3k2P1/3p4/3Q4/8/8 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1999

8/3p1N2/K2p4/3k2P1/3p4/3Q4/8/8

#2

4 + 4

14503 Problemschach-Jahrbuch (1999) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qb5#
    • 1...Kc6
      • 2.Qc4#
  • Tries
    • 1.Sd8?
      • 1...Kc5
        • 2.Qb5#
      • 1...Ke5!
    • 1.Sh8?
      • 1...Kc5
        • 2.Qb5#
      • 1...Kc6
        • 2.Qc4#
      • 1...Ke6
        • 2.Qe4#
      • 1...Ke5!
    • 1.Qe2?
      • 1...Kc5
        • 2.Qb5#
      • 1...Kc6
        • 2.Qc4#
      • 1...d3!
    • 1.Qb3+?
      • 1...Kc5
        • 2.Qb5#
      • 1...Kc6
        • 2.Qc4#
      • 1...Ke4!
    • 1.g6?
      • 1...Kc5
        • 2.Qb5#
      • 1...Kc6
        • 2.Qc4#
      • 1...Ke6!
  • Keys
    • 1.Sh6!
      • 1...Kc5
        • 2.Qb5#
      • 1...Ke5
        • 2.Qf5#
      • 1...Kc6
        • 2.Qc4#
      • 1...Ke6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
    • K(b);N_SPINP(a),S_FLIGHT::QAR2(A)
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(B);
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
      • K(b);N_SPINP(a),S_FLIGHT::QAR2(A)
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