MESON Chess Problem Database

Problem Display
PID: 108016 (4B3/3pb3/4kP2/6K1/4P2N/8/bQ6/8 w - - 0 1)

Dulinac, Stefan

Mezija, 1999

4B3/3pb3/4kP2/6K1/4P2N/8/bQ6/8

#2

6 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf6+
      • 2.Qxf6#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Qe5#
      • 1...Bxf6+
        • 2.Qxf6#
      • 1...Kd6
        • 2.Qb6#
      • 1...Bd6
        • 2.Qxa2#
      • 1...d6!
    • 1.Qxa2+?
      • 1...Ke5
        • 2.Qd5#
      • 1...d5
        • 2.Qxd5#
      • 1...Kd6!
  • Keys
    • 1.Sg6!
      • threat
        • 2.Qe5#
      • 1...Bxf6+
        • 2.Qxf6#
      • 1...Kd6
        • 2.Qb6#
      • 1...Bd6
        • 2.Qxa2#
      • 1...d6
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(d);CHECK,OGATE,XP(E)::QAR1(A),XB(d)
  • Tries
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • B(d);CHECK,OGATE,XP(E)::QAR1(A),XB(d)
        • K(b);P-FLIGHT::QAR2(A)
        • B(d);N_PINP(E),SBLOCK,S_CUTP(c)::QAB(A),XB(a)
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK,XB(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • P(c);P_SPINP(c)::QAB1(A),XP(c)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAR1(A)
    • Vars
      • B(d);CHECK,OGATE,XP(E)::QAR1(A),XB(d)
      • K(b);P-FLIGHT::QAR2(A)
      • B(d);N_PINP(E),SBLOCK,S_CUTP(c)::QAB(A),XB(a)
      • P(c);SBLOCK::S(C)
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