MESON Chess Problem Database

Problem Display
PID: 161761 (8/8/N7/Pk3BQ1/8/8/K7/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Mezija, 1997

8/8/N7/Pk3BQ1/8/8/K7/8

#2

5 + 1

5454 Near Snap 2017
15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Ka4
      • 2.Bc2#
      • 2.Bd7#
  • Tries
    • 1.Bd3+?
      • 1...Ka4
        • 2.Bc2#
        • 2.Qb5#
      • 1...Kc6!
    • 1.Be4+?
      • 1...Ka4
        • 2.Bc2#
        • 2.Bc6#
      • 1...Kc4
        • 2.Qc5#
      • 1...Kxa6!
    • 1.Be6+?
      • 1...Ka4
        • 2.Bb3#
        • 2.Bd7#
      • 1...Kc6
        • 2.Qd5#
      • 1...Kxa6!
    • 1.Bc8+?
      • 1...Ka4
        • 2.Bd7#
      • 1...Kc6
        • 2.Qc5#
      • 1...Kc4!
    • 1.Qd2?
      • 1...Ka4
        • 2.Bd7#
        • 2.Qb4#
      • 1...Kc4
        • 2.Qd3#
      • 1...Kc6
        • 2.Qd7#
      • 1...Kxa6!
  • Keys
    • 1.Qd8!
      • 1...Ka4
        • 2.Bd7#
      • 1...Kc4
        • 2.Qd3#
      • 1...Kxa6
        • 2.Qb6#
      • 1...Kc6
        • 2.Qd7#

Anticipated by 10692(1967), 219856(1974), 95064(1984)

This anticipates 165525(1998), 168594(2005)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::B(C)
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::B(C)
      • K(a);S_FLIGHT::QAB1(D)
      • K(a);S_FLIGHT,XS(E)::QAR1(D)
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