MESON Chess Problem Database

Problem Display
PID: 190419 (4B3/1Q6/4P3/8/Ppk5/8/1PN5/3K4 w - - 0 1)

Savenok, Aleksandr Antolovich

Heilbronner Stimme, 2001

(First published on Sat Aug 11 2001)

4B3/1Q6/4P3/8/Ppk5/8/1PN5/3K4

#2

7 + 2

16210 Problemschach-Jahrbuch (2001) 2002
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Bb5#
      • 2.Qd5#
    • 1...Kc5
      • 2.Qc6#
    • 1...b3
      • 2.Qb5#
  • Tries
    • 1.Kd2?
      • 1...Kc5
        • 2.Qc6#
      • 1...b3
        • 2.Qc6#
        • 2.Qb5#
      • 1...Kb3!
    • 1.Ke2?
      • 1...Kc5
        • 2.Qc6#
      • 1...b3
        • 2.Qc6#
        • 2.Qb5#
      • 1...Kb3!
    • 1.Bb5+?
      • 1...Kc5
        • 2.Qc6#
      • 1...Kb3!
    • 1.Bd7?
      • 1...Kd3
        • 2.Bb5#
        • 2.Qd5#
      • 1...Kc5
        • 2.Qc6#
      • 1...b3
        • 2.Qb5#
      • 1...Kb3!
    • 1.Qf3?
      • 1...Kc5
        • 2.Qc6#
      • 1...b3!
    • 1.Qe4+?
      • 1...Kc5
        • 2.Qc6#
        • 2.Qd4#
      • 1...Kb3!
    • 1.Qc6+?
      • 1...Kd3
        • 2.Bg6#
        • 2.Qd5#
      • 1...Kb3!
    • 1.Qxb4+?
      • 1...Kd3
        • 2.Bb5#
        • 2.Bg6#
        • 2.Qd4#
      • 1...Kd5!
    • 1.Qd7?
      • 1...Kc5
        • 2.Qc6#
        • 2.Qd4#
      • 1...b3
        • 2.Qb5#
        • 2.Qd4#
      • 1...Kb3!
    • 1.a5?
      • 1...Kd3
        • 2.Bb5#
        • 2.Qd5#
      • 1...Kc5
        • 2.Qc6#
      • 1...b3
        • 2.Qb5#
      • 1...Kb3!
    • 1.e7?
      • 1...Kd3
        • 2.Bb5#
        • 2.Qd5#
      • 1...Kc5
        • 2.Qc6#
      • 1...b3
        • 2.Qb5#
      • 1...Kb3!
  • Keys
    • 1.Kc1!
      • 1...Kb3
        • 2.Qd5#
      • 1...Kd3
        • 2.Bb5#
      • 1...Kc5
        • 2.Qc6#
      • 1...b3
        • 2.Qb5#

Anticipated by 160177(1923)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR1(F)
    • P(a);::QAB1(F)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(G);
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
        • P(a);::QAB1(F)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
      • Refutation
        • P(a);
    • Try
      • Q(F);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);CHECK,XP(a)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(F);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(D);
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
        • P(a);::QAB1(F)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • P(E);
      • Vars
        • K(b);P-FLIGHT::QAR1(F)
        • P(a);::QAB1(F)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::QAB(F)
      • K(b);S_FLIGHT::B(G)
      • K(b);P-FLIGHT::QAR1(F)
      • P(a);::QAB1(F)
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