MESON Chess Problem Database

Problem Display
PID: 257813 (8/3Q4/1qP5/6N1/BP1PP3/Nn1k2B1/1P1p1P2/3K4 w - - 0 1)

Leu, Gheorghe

1st HM., Buletin Problemistic, 1994

8/3Q4/1qP5/6N1/BP1PP3/Nn1k2B1/1P1p1P2/3K4

#2

12 + 4

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Bb5#
    • 1...Qa7
      • 2.Bb5#
    • 1...Qc7
      • 2.Bb5#
    • 1...Qd8
      • 2.Bb5#
    • 1...Qb5
      • 2.Bxb5#
    • 1...Sc1
      • 2.Bc2#
    • 1...Sxd4
      • 2.Bc2#
    • 1...Sa5
      • 2.Bc2#
    • 1...Sc5
      • 2.Bc2#
      • 2.dxc5#
  • Tries
    • 1.Bxb3?
      • threat
        • 2.Bc2#
        • 2.Bc4#
      • 1...Qxb4
        • 2.Bc2#
      • 1...Qc5
        • 2.dxc5#
      • 1...Qb5
        • 2.Bc2#
      • 1...Qa6
        • 2.Bc2#
      • 1...Qxc6!
    • 1.Qh3?
      • threat
        • 2.Be5#
      • 1...Kxd4
        • 2.Qd7#
      • 1...Qxd4
        • 2.Qf1#
      • 1...Sxd4!
  • Keys
    • 1.Be5!
      • threat
        • 2.Qh3#
      • 1...Qxd4
        • 2.Bb5#
      • 1...Sxd4
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(d);N_GUARD,P_SPINQ(d),XP(H)::B(F)
    • Q(d);N_GUARD::B(F)
    • Q(d);N_GUARD::B(F),XQ(d)
    • S(b);OGATE::B(F)
    • S(b);OGATE,P_SPINS(b),XP(H)::B(F)
  • Tries
    • Try
      • B(F);XS(b)
      • Threat
        • DUALS(2)
      • Vars
        • Q(d);XP(G)::B(F)
        • Q(d);OGATE::QAR(L)+P(H),XQ(d)
        • Q(d);::B(F)
      • Refutation
        • Q(d);XP(K)
    • Try
      • Q(L);
      • Threat
        • QAR(L)+B(E)
      • Vars
        • K(c);OGATEB,P-FLIGHT,XP(H)::QAR(L)
        • Q(d);SBLOCK,XP(H)::QAB(L)
      • Refutation
        • S(b);XP(H)
  • Actual
    • B(E);
    • Threat
      • QAR(L)
    • Vars
      • Q(d);N_GUARD,P_SPINQ(d),XP(H)::B(F)
      • S(b);OGATE,P_SPINS(b),XP(H)::B(F)
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