MESON Chess Problem Database

Problem Display
PID: 285207 (1b5Q/2pppN2/5p2/K2k4/3P4/1P4N1/8/3R1BB1 w - - 0 1)

Crisan, Vlaicu

1st Place, Romanian Chess Federation, 1993

1b5Q/2pppN2/5p2/K2k4/3P4/1P4N1/8/3R1BB1

#2

9 + 6

5454 Near Snap 2026

SOLUTION

  • SOUND
  • Sets
    • 1...c6
      • 2.Bc4#
    • 1...e6
      • 2.Bg2#
      • 2.Qh1#
  • Tries
    • 1.Qxf6?
      • threat
        • 2.Bg2#
        • 2.Bc4#
      • 1...d6
        • 2.Bg2#
      • 1...e6
        • 2.Bg2#
        • 2.Qf3#
      • 1...e5
        • 2.Bc4#
        • 2.dxe5#
      • 1...exf6!
    • 1.Qe8?
      • threat
        • 2.Qxd7#
      • 1...Kc6
        • 2.Bg2#
      • 1...Ke6
        • 2.d5#
      • 1...c6
        • 2.Bc4#
      • 1...d6
        • 2.Bc4#
      • 1...c5!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Qxd7#
      • 1...Kc6
        • 2.d5#
      • 1...Ke6
        • 2.Bc4#
      • 1...c5
        • 2.Bc4#
      • 1...c6
        • 2.Bc4#
      • 1...d6
        • 2.Bg2#

Anticipated by 283599(1982)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::B(B)
  • Tries
    • Try
      • Q(I);XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::B(B)
      • Refutation
        • P(e);XQ(I)
    • Try
      • Q(I);
      • Threat
        • QAR2(I),XP(d)
      • Vars
        • K(a);N_GUARD,P_SPINP(d),S_FLIGHT::B(B)
        • K(a);OGATE,P_SPINP(e),S_FLIGHT::P(F)
        • P(c);SBLOCK::B(B)
        • P(d);::B(B)
      • Refutation
        • P(c);
  • Actual
    • Q(I);
    • Threat
      • QAR2(I),XP(d)
    • Vars
      • K(a);OGATE,P_SPINP(c),S_FLIGHT::P(F)
      • K(a);N_GUARD,P_SPINP(d),S_FLIGHT::B(B)
      • P(c);::B(B)
      • P(d);::B(B)
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