MESON Chess Problem Database

Problem Display
PID: 64279 (8/q3pK2/2NpP3/3k4/N2Pp3/2R4p/2n4Q/3B4 w - - 0 1)

Dittrich, Stefan

2nd Prize, Revista Romana de Sah, 1980

8/q3pK2/2NpP3/3k4/N2Pp3/2R4p/2n4Q/3B4

#2

8 + 7

3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Sxe7#
    • 1...Qb6
      • 2.Sxb6#
    • 1...Qd7
      • 2.Sb6#
    • 1...Qa8
      • 2.Sb6#
    • 1...Se1
      • 2.Bb3#
      • 2.Qa2#
    • 1...Sb4
      • 2.Bb3#
    • 1...Sxd4
      • 2.Sb4#
    • 1...e3
      • 2.Bf3#
      • 2.Qh1#
  • Tries
    • 1.Sxe7+?
      • 1...Kxd4
        • 2.Qxd6#
      • 1...Qxe7+!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qg5#
      • 1...Qxd4
        • 2.Sb6#
      • 1...Sxd4
        • 2.Bb3#
      • 1...Qc5
        • 2.Sxe7#
      • 1...e3
        • 2.Bf3#
      • 1...Se3
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(f);N_GUARD,SBLOCK,XP(E)::S(F),XP(g)
    • Q(f);N_GUARD::S(D),XQ(f)
    • Q(f);N_GUARD::S(D)
    • S(a);OGATE::B(A)
    • S(a);N_GUARD,SBLOCK,XP(E)::S(F)
  • Tries
    • Try
      • S(F);CHECK,P_SPINS(F),XP(g)
      • Vars
        • K(d);P-FLIGHT,XP(E)::QAR2(B),XP(e)
      • Refutation
        • Q(f);CHECK,XS(F)
  • Actual
    • Q(B);
    • Threat
      • QAR(B)
    • Vars
      • Q(f);N_GUARD,P_SPINQ(f),XP(E)::S(D)
      • S(a);OGATE,P_SPINS(a),XP(E)::B(A)
      • Q(f);N_GUARD::S(F),XP(g)
      • P(c);OGATEB::B(A)
      • S(a);N_GUARD::S(F)
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