MESON Chess Problem Database

Problem Display
PID: 12462 (4R2B/6br/8/K4n2/2BPp2R/2k5/4Q3/5N1b w - - 0 1)

Brabec, Juraj

Lehen, Ludovit

1/2 Prize, Shakhmaty v SSSR, 1979

4R2B/6br/8/K4n2/2BPp2R/2k5/4Q3/5N1b

#2

8 + 6

3750 FIDE Album (1977-1979) 1984
6424 Czech Album (1979-1981) 1986

SOLUTION

  • SOUND
  • Tries
    • 1.Bd5?
      • threat
        • 2.Qd2#
      • 1...Kxd4
        • 2.Qc4#
      • 1...e3
        • 2.Rc8#
      • 1...Bh6!
    • 1.Bf7?
      • threat
        • 2.Qd2#
      • 1...Kxd4
        • 2.Qc4#
      • 1...Bh6
        • 2.Rc8#
      • 1...e3!
  • Keys
    • 1.Rc8!
      • threat
        • 2.Qd2#
      • 1...Kxd4
        • 2.Qb2#
      • 1...Bh6
        • 2.Bf7#
      • 1...e3
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);
      • Threat
        • QAB1(B)
      • Vars
        • K(b);P_SPINB(e),P_SPINP(c),S_FLIGHT,XP(D)::QAR1(B)
        • P(c);::R(G)
      • Refutation
        • B(e);
    • Try
      • B(C);
      • Threat
        • QAB1(B)
      • Vars
        • K(b);P_SPINB(e),P_SPINP(c),S_FLIGHT,XP(D)::QAR1(B)
        • B(e);::R(G)
      • Refutation
        • P(c);
  • Actual
    • R(G);
    • Threat
      • QAB1(B)
    • Vars
      • K(b);P_SPINB(e),P_SPINP(c),S_FLIGHT,XP(D)::QAB(B)
      • B(e);::R(G)+B(C)
      • P(c);::R(G)+B(C)
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