MESON Chess Problem Database

Problem Display
PID: 261228 (8/k2K4/Pp6/3BQ3/8/8/8/8 w - - 0 1)

Chernyavsky, Mykola Vasilovich

Novitski, Petr Adrinovich

Sachove umeni (Ceskoslovensky sach), 2019

8/k2K4/Pp6/3BQ3/8/8/8/8

#2

4 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Kc6?
      • 1...Kxa6
        • 2.Qa1#
      • 1...Ka8
        • 2.Kxb6#
      • 1...b5!
    • 1.Bc6?
      • 1...Kxa6
        • 2.Qa1#
      • 1...b5!
    • 1.Qa1?
      • 1...Kb8
        • 2.a7#
      • 1...b5!
    • 1.Qf4?
      • 1...Kxa6
        • 2.Qa4#
      • 1...b5!
    • 1.Qe3?
      • 1...Kb8
        • 2.Qxb6#
      • 1...Kxa6!
  • Keys
    • 1.Qd4!
      • 1...Kxa6
        • 2.Qa4#
      • 1...Kb8
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(C)::QAR(B)
        • K(b);P-FLIGHT::B(A)+K(D),XP(a)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(C)::QAR(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Vars
        • K(b);OGATE,S_FLIGHT::P(C)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(C)::QAR2(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);P_PINP(a)
      • Vars
        • K(b);N_GUARD,N_SPINP(a),S_FLIGHT::QAR2(B),XP(a)
      • Refutation
        • K(b);N_SPINP(a),P-FLIGHT,XP(C)
  • Actual
    • Q(B);P_PINP(a)
    • Vars
      • K(b);N_SPINP(a),OGATEB,P-FLIGHT,XP(C)::QAR2(B)
      • K(b);N_GUARD,N_SPINP(a),S_FLIGHT::QAR2(B),XP(a)
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