MESON Chess Problem Database

Problem Display
PID: 7319 (8/3B4/8/1n1N4/8/kb5Q/8/K7 w - - 0 1)

Belotbekov, Sujunbek Ismailovich

Problemas, 1999

8/3B4/8/1n1N4/8/kb5Q/8/K7

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qc3?
      • threat
        • 2.Qb4#
      • 1...Ka4
        • 2.Qb4#
      • 1...Sxc3!
    • 1.Qg3?
      • 1...Sc3
        • 2.Qd6#
      • 1...Sd4
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sa7
        • 2.Qd6#
      • 1...Sc7
        • 2.Qd6#
      • 1...Ka4!
  • Keys
    • 1.Qe3!
      • 1...Ka4
        • 2.Qa7#
      • 1...Sc3
        • 2.Qc1#
        • 2.Qc5#
        • 2.Qe7#
      • 1...Sd4
        • 2.Qc1#
        • 2.Qe7#
      • 1...Sd6
        • 2.Qc1#
        • 2.Qc5#
      • 1...Sa7
        • 2.Qc1#
        • 2.Qc5#
        • 2.Qe7#
      • 1...Sc7
        • 2.Qc1#
        • 2.Qc5#
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT,P_SPINS(c)::QAR1(B)
      • Refutation
        • S(c);N_SPINB(b),XQ(B)
    • Try
      • Q(B);
      • Vars
        • S(c);N_GUARD,N_SPINB(b)::QAB(B)
        • S(c);N_GUARD::QAB(B)
        • S(c);N_GUARD::QAB(B),XS(c)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,P_SPINS(c)
  • Actual
    • Q(B);
    • Vars
      • K(a);N_SPINB(b),P-FLIGHT,P_SPINS(c)::QAR(B)
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