MESON Chess Problem Database

Problem Display
PID: 84967 (N2R4/5N1Q/Kp3P2/5R2/2k1p3/8/2P5/4Bbq1 w - - 0 1)

Petite, Efren

Thema Danicum, 1993

N2R4/5N1Q/Kp3P2/5R2/2k1p3/8/2P5/4Bbq1

#2

9 + 5

15193 Telescacco 2000 2007-2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Sxb6#
    • 1...Qh1
      • 2.Sxb6#
    • 1...Qg2
      • 2.Sxb6#
    • 1...Qg3
      • 2.Sxb6#
    • 1...Qg4
      • 2.Sxb6#
    • 1...Qg5
      • 2.Sxb6#
    • 1...Qg6
      • 2.Sxb6#
    • 1...Qg7
      • 2.Sxb6#
    • 1...Qg8
      • 2.Sxb6#
    • 1...e3
      • 2.Sxb6#
  • Tries
    • 1.Rfd5?
      • threat
        • 2.Se5#
      • 1...Qh2
        • 2.Sxb6#
        • 2.Qxe4#
      • 1...Qg3
        • 2.Sxb6#
        • 2.Qxe4#
      • 1...Qg5
        • 2.Sxb6#
        • 2.Qxe4#
      • 1...Qd4!
    • 1.Rdd5?
      • threat
        • 2.Sd6#
      • 1...Qh2
        • 2.Sxb6#
      • 1...Qg3
        • 2.Sxb6#
      • 1...Qc5!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Sg5#
      • 1...Qxg8
        • 2.Sxb6#
      • 1...Qd4
        • 2.Sd6#
      • 1...Qc5
        • 2.Se5#
      • 1...Qg5
        • 2.Sxg5#
        • 2.Sxb6#
      • 1...Qg6
        • 2.Sxb6#
      • 1...Qg7
        • 2.Sxb6#

There are these versions: 238988

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(b);N_GUARD::S(H),XP(e)
    • P(d);S_CUTQ(b)::S(H),XP(e)
  • Tries
    • Try
      • R(C);
      • Threat
        • S(F)
      • Refutation
        • Q(b);
    • Try
      • R(I);
      • Threat
        • S(F)
      • Vars
        • Q(b);N_GUARD::S(H),XP(e)
      • Refutation
        • Q(b);
  • Actual
    • Q(G);
    • Threat
      • QAB(G)+S(F)
    • Vars
      • Q(b);N_GUARD,XQ(G)::S(H),XP(e)
      • Q(b);SBLOCK::QAB(G)+S(F),DCHECK
      • Q(b);N_GUARD::S(H),XP(e)
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