MESON Chess Problem Database

Problem Display
PID: 46413 (7B/2Qpk3/3N4/1K6/8/8/8/8 w - - 0 1)

Zimmer, Eligiusz

StrateGems, 2003

7B/2Qpk3/3N4/1K6/8/8/8/8

#2

4 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kf8
      • 2.Qd8#
  • Tries
    • 1.Ka4?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Kb4?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Kc4?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Ka5?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Kc5?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Ka6?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Kb6?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Ba1?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Bb2?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Bc3?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Bd4?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Be5?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Qb6?
      • 1...Kf8
        • 2.Qd8#
      • 1...Ke6!
    • 1.Qc4?
      • 1...Kd8
        • 2.Bf6#
      • 1...Kf8
        • 2.Qf7#
      • 1...Kxd6!
    • 1.Qc5?
      • 1...Ke6
        • 2.Qe5#
      • 1...Kd8
        • 2.Bf6#
      • 1...Kf8!
    • 1.Qxd7+?
      • 1...Kf8
        • 2.Qe8#
        • 2.Qf7#
        • 2.Qg7#
        • 2.Qd8#
      • 1...Kxd7!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qf6#
      • 1...Kxd6
        • 2.Qe5#
      • 1...Ke6
        • 2.Qe5#
      • 1...Kd8
        • 2.Bf6#
      • 1...Kf8
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • B(D);
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT
    • Try
      • Q(C);N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::QAR2(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);N_PINP(a)
      • Vars
        • K(b);S_FLIGHT::B(D)
        • K(b);S_FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(C);N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(C)
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK,XP(a)
      • Refutation
        • K(b);P-FLIGHT,XQ(C)
  • Actual
    • Q(C);N_PINP(a)
    • Threat
      • QAB1(C)
    • Vars
      • K(b);S_FLIGHT,XS(B)::QAB1(C)
      • K(b);P-FLIGHT::QAR1(C)
      • K(b);S_FLIGHT::B(D)
      • K(b);S_FLIGHT::QAB1(C)
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