MESON Chess Problem Database

Problem Display
PID: 104321 (K1b5/1nB3P1/2k1p3/2p1QP2/8/2N5/8/8 w - - 0 1)

Djurasevic, Branislav

Belgrade QCT, 1998

K1b5/1nB3P1/2k1p3/2p1QP2/8/2N5/8/8

#2

6 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sa5
      • 2.Qd6#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sd8
      • 2.Qd6#
  • Tries
    • 1.g8Q?
      • 1...Kd7
        • 2.Qgxe6#
      • 1...exf5
        • 2.Qgd5#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Bd7
        • 2.Qg2#
      • 1...Sa5
        • 2.Qd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...c4!
  • Keys
    • 1.Kb8!
      • 1...Kd7
        • 2.Qxe6#
      • 1...exf5
        • 2.Qd5#
      • 1...Bd7
        • 2.Qe4#
      • 1...Sa5
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...c4
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(d);N_GUARD::QAR1(B)
    • S(d);N_GUARD::QAR1(B),XS(d)
  • Tries
    • Try
      • P(E);
      • Vars
        • K(b);S_FLIGHT::QAB1(E),XP(c)
        • P(c);OGATE,XP(C)::QAB1(E)
        • S(d);N_GUARD::QAR1(B),XS(d)
        • B(e);SBLOCK::QAB(E)
        • S(d);N_GUARD::QAR1(B)
      • Refutation
        • P(a);
  • Actual
    • K(F);P-FLIGHT
    • Vars
      • K(b);S_FLIGHT::QAB1(B),XP(c)
      • P(c);N_GUARD,XP(C)::QAB1(B)
      • B(e);SBLOCK::QAB(B)
      • S(d);N_GUARD::QAR1(B)
      • S(d);N_GUARD::QAR1(B),XS(d)
      • P(a);OGATE::QAB1(B)
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