MESON Chess Problem Database

Problem Display
PID: 23015 (3K4/3p4/2P5/2k1B3/Q1N5/8/8/8 w - - 0 1)

Ugren, Ljubomir

Vecherni Novosti, 1962

3K4/3p4/2P5/2k1B3/Q1N5/8/8/8

#2

5 + 2

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Sa3?
      • threat
        • 2.Qb5#
      • 1...Kb6
        • 2.Bd4#
      • 1...dxc6
        • 2.Qd4#
        • 2.Qa5#
      • 1...Kd5!
    • 1.Se3?
      • 1...Kb6
        • 2.Bd4#
      • 1...dxc6
        • 2.Qa5#
      • 1...d6
        • 2.Bd4#
      • 1...d5!
    • 1.Sd6?
      • threat
        • 2.Qb5#
      • 1...Kb6
        • 2.Bd4#
      • 1...dxc6
        • 2.Qd4#
        • 2.Qa5#
      • 1...Kd5!
  • Keys
    • 1.Sb6!
      • 1...Kxb6
        • 2.Bd4#
      • 1...dxc6
        • 2.Qa5#
      • 1...d5
        • 2.Sd7#
      • 1...d6
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(b);SBLOCK,XP(D)::QAR2(A)
        • P(b);SBLOCK::B(C)
      • Refutation
        • P(b);
    • Try
      • S(B);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);S_FLIGHT::B(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT,XS(B)::B(C)
      • P(b);SBLOCK,XP(D)::QAR2(A)
      • P(b);SBLOCK::S(B)
      • P(b);SBLOCK::B(C)
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