MESON Chess Problem Database

Problem Display
PID: 46645 (8/QKb5/8/Bk2r3/8/1P6/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

2nd Prize, Vestnik, 1990

8/QKb5/8/Bk2r3/8/1P6/8/8

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Qa6#
    • 1...Bb6
      • 2.Qxb6#
    • 1...Bd6
      • 2.Qb6#
    • 1...Bb8
      • 2.Qb6#
  • Tries
    • 1.Bb4?
      • threat
        • 2.Qa4#
      • 1...Ba5
        • 2.Qxa5#
      • 1...Kxb4!
    • 1.Bb6?
      • threat
        • 2.Qa4#
        • 2.Qa5#
      • 1...Bxb6
        • 2.Qxb6#
      • 1...Re4
        • 2.Qa5#
      • 1...Kb4!
    • 1.Bxc7?
      • threat
        • 2.Qb6#
        • 2.Qa5#
      • 1...Re6
        • 2.Qa5#
      • 1...Kb4!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qb4#
      • 1...Kxa5
        • 2.Qa4#
      • 1...Bxa5
        • 2.Qc4#
      • 1...Re4
        • 2.Qd5#
      • 1...Bd6
        • 2.Qb6#

This anticipates 912(1992)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(b);SBLOCK::QAB1(C)
    • B(c);N_GUARD::QAR1(C),XB(c)
    • B(c);N_GUARD::QAR1(C)
  • Tries
    • Try
      • B(B);
      • Threat
        • QAB1(C)
      • Vars
        • B(c);N_GUARD::QAR1(C),XB(c)
      • Refutation
        • K(a);P-FLIGHT,XB(B)
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);OGATE,XB(B)::QAR1(C),XB(c)
        • R(b);::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);XB(c)
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::QAR1(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT,XB(B)::QAR1(C)
      • B(c);SBLOCK,XB(B)::QAB1(C)
      • R(b);N_GUARD::QAR2(C)
      • B(c);N_GUARD::QAR1(C)
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